Publications

TitleAbstractYear(sorted descending)
Filter
PMID
Filter
translocation and degradation of tebuconazole and prothioconazole in wheat following fungicide treatment at flowering.prothioconazole and tebuconazole are among the most effective fungicides against fusarium head blight (fhb) of wheat (triticum aestivum l.). the translocation between the ears and the flag leaves and the kinetics of degradation may influence field efficacy of these active ingredients (ais).201323471588
effects of exogenous abscisic acid on carbohydrate metabolism and the expression levels of correlative key enzymes in winter wheat under low temperature.two wheat (triticum aestivum) cultivars, freeze-tolerant dongnongdongmai 1 and freeze-sensitive jimai 22, were used in this study. they were grown under field conditions, the leaves were sprayed with 1 × 10(-5) mol/l aba and distilled water as control respectively at the three-true-leaf stage. application of exogenous aba increased the accumulation of carbohydrates in both cultivars, mainly in sucrose and fructose, except that the fructose content decreased in the leaves of jimai 22. exogenous a ...201323470756
evaluation of the safety of ancient strains of wheat in coeliac disease reveals heterogeneous small intestinal t cell responses suggestive of coeliac toxicity.coeliac disease is a chronic small intestinal immune-mediated enteropathy triggered by dietary gluten in genetically predisposed individuals. since it is unknown if all wheat varieties are equally toxic to coeliac patients seven triticum accessions showing different origin (ancient/modern) and ploidy (di-, tetra- hexaploid) were studied.201323465776
light saturated rubp oxygenation by rubisco is a robust predictor of light inhibition of respiration in triticum aestivum l.plant respiratory metabolism is complicated by the fact that the rate of non-photorespiratory mitochondrial co2 release in the light (r light) may be lower than the rate of leaf respiration in the dark (r dark). a body of work on this topic implies a linkage between light inhibition of respiration and photorespiration, although the direction of effect and underlying mechanisms remain uncertain. in this study we used a variety of short- and long-term environmental manipulations to explicitly mani ...201323451982
comparative proteomic analysis of the effect of temperature and fertilizer on gliadin and glutenin accumulation in the developing endosperm and flour from triticum aestivum l. cv. butte 86.flour quality is largely determined by the gluten proteins, a complex mixture of proteins consisting of high molecular weight-glutenin subunits (hmw-gs), low molecular weight-glutenin subunits (lmw-gs), and α-, γ-, and ω-gliadins. detailed proteomic analyses of the effects of fertilizer and high temperature on individual gliadin and glutenin protein levels are needed to determine how these environmental factors influence flour quality.201323432757
insect herbivores can choose microclimates to achieve nutritional homeostasis.the interaction between temperature and diet quality can affect the life history of ectotherms. the rate and ratio at which protein and carbohydrate are obtained from food are important aspects of diet quality, and insects have a well-developed capacity to adjust their feeding behaviour and post-ingestive physiology to regulate intake and allocation of these nutrients. if the supply of protein and carbohydrate varies with temperature (e.g. via effects on intake, digestion or metabolism), then he ...201323430995
exogenous sodium nitroprusside alleviates arsenic-induced oxidative stress in wheat (triticum aestivum l.) seedlings by enhancing antioxidant defense and glyoxalase system.the present study investigates the possible regulatory role of exogenous nitric oxide (no) in mitigating oxidative stress in wheat seedlings exposed to arsenic (as). seedlings were treated with no donor (0.25 mm sodium nitroprusside, snp) and as (0.25 and 0.5 mm na2haso4·7h2o) separately and/or in combination and grown for 72 h. relative water content (rwc) and chlorophyll (chl) content were decreased by as treatment but proline (pro) content was increased. the ascorbate (asa) content was decrea ...201323430410
[study of the effects of gamma-irradiation of common wheat f1 seeds using gliadins as genetic markers].effects of irradiation of dry f1 seeds with gamma rays in the dose of 200 gy were studied. hybrids between near-isogenic lines on the basis of the variety bezostaya 1 served as the material of investigation. irradiation markedly reduced productivity traits of f1 plants and did not affect the survival of f1 plants under the given growth conditions. a significant relative increase in the frequency of pollen grains with the 1bl/1rs translocation that formed f2 seeds in comparison with the control w ...201323427608
introgression of novel traits from a wild wheat relative improves drought adaptation in wheat.root architecture traits are an important component for improving water stress adaptation. however, selection for aboveground traits under favorable environments in modern cultivars may have led to an inadvertent loss of genes and novel alleles beneficial for adapting to environments with limited water. in this study, we elucidate the physiological and molecular consequences of introgressing an alien chromosome segment (7dl) from a wild wheat relative species (agropyron elongatum) into cultivate ...201323426195
short, natural, and extended photoperiod response in bc2f4 lines of bread wheat with different photoperiod-1 (ppd-1) alleles.flowering is a critical period in the life cycle of flowering plant species, resulting in an irreversible commitment of significant resources. wheat is photoperiod sensitive, flowering only when daylength surpasses a critical length; however, photoperiod insensitivity (pi) has been selected by plant breeders for >40 years to enhance yield in certain environments. control of flowering time has been greatly facilitated by the development of molecular markers for the photoperiod-1 (ppd-1) homeoloci ...201323420880
effect of dough mixing on wheat endosperm cell walls.dough-derived cell wall fragments isolated by ultracentrifugation were largely derived from the starchy endosperm, with some fragments deriving from the aleurone and outer layers, as indicated by fluorescence microscopy. dough mixing had little effect on the structure and composition of cell wall fragments compared to thin grain sections, as determined by fourier transform infrared (ftir) and (1)h nuclear magnetic resonance (nmr) spectroscopy. these analyses confirmed that the fragments largely ...201323414565
calcium supply effects on wheat cultivars differing in salt resistance with special reference to leaf cytosol ion homeostasis.salinity causes changes in cytosolic ca(2+), [ca(2+)]cyt, na(+), [na(+)]cyt and ph, ph cyt , which induce specific reactions and signals. reactions causing a rebalancing of the physiological homeostasis of the cytosol could result in plant resistance and growth. two wheat cultivars, triticum aestivum, seds1 and vinjett, were grown in nutrient solution for 7 days under moderate salinity (0 and 50 mm nacl) with and without extra addition of 5 mm caso4 to investigate the seedling-ion homeostasis un ...201323413983
winter wheat hull (husk) is a valuable source for tricin, a potential selective cytotoxic agent.the flavone, tricin (5,7,4'-trihydroxy-3',5'-dimethoxyflavone) has great potential as an anticancer agent, due to its specific chemopreventive activity. in spite of these characteristics, its use in preclinical studies is still limited, mainly because of its limited availability and high production cost. tricin is found mainly in cereal grains, such as wheat, rice, barley, oat and maize. however, its concentration in these plants is not sufficient for commercial use. to find a reliable, rich sou ...201323411198
modeling rhizotoxicity and uptake of zn and co singly and in binary mixture in wheat in terms of the cell membrane surface electrical potential.the usually negative, but variable electrical potential (ψ0) at the cell membrane (cm) surface influences the surface activities of free ions and the electrical driving force for the transport of ions across the cm. the rhizotoxic effects and uptake of zn(2+) and co(2+) singly and in binary mixture in wheat ( triticum aestivum l.) at three ph values (4.5, 5.5, or 6.1) were examined in terms of the free ion activities of zn(2+), co(2+), and h(+) at the cm surface (these ions are denoted {m(n+)}(0 ...201323405885
rapid genome mapping in nanochannel arrays for highly complete and accurate de novo sequence assembly of the complex aegilops tauschii genome.next-generation sequencing (ngs) technologies have enabled high-throughput and low-cost generation of sequence data; however, de novo genome assembly remains a great challenge, particularly for large genomes. ngs short reads are often insufficient to create large contigs that span repeat sequences and to facilitate unambiguous assembly. plant genomes are notorious for containing high quantities of repetitive elements, which combined with huge genome sizes, makes accurate assembly of these large ...201323405223
persistent whole-chromosome aneuploidy is generally associated with nascent allohexaploid wheat.allopolyploidization has been a driving force in plant evolution. formation of common wheat (triticum aestivum l.) represents a classic example of successful speciation via allopolyploidy. nevertheless, the immediate chromosomal consequences of allopolyploidization in wheat remain largely unexplored. we report here an in-depth investigation on transgenerational chromosomal variation in resynthesized allohexaploid wheats that are identical in genome constitution to common wheat. we deployed seque ...201323401544
function of the wheat tasip gene in enhancing drought and salt tolerance in transgenic arabidopsis and rice.microarray analysis of a salt-tolerant wheat mutant identified a gene of unknown function that was induced by exposure to high levels of salt and subsequently denoted tasip (triticum aestivum salt-induced protein). quantitative pcr analysis revealed that tasip expression was induced not only by salt, but also by drought, abscisic acid (aba), and other environmental stress factors. transgenic rice plants that expressed an rna interference construct specific for a rice gene homologous to tasip was ...201323400831
quaternary ammonium compounds can be abundant in some soils and are taken up as intact molecules by plants.studies of organic nitrogen (n) cycling and uptake by plants have focused on protein amino acids, but the soil solution includes organic n compounds from many other compound classes. the two aims of this study were to characterize the 30-50 most abundant molecules of small (< 250 da), nonpeptide organic n in the soil solution from six soils, and to determine if two ecologically disparate species (nonmycorrhizal banksia oblongifolia and mycorrhizal triticum aestivum) have the ability to take up i ...201323397895
identification of mirnas and their targets in wheat (triticum aestivum l.) by est analysis.micrornas (mirnas) are a newly discovered class of noncoding small rnas that regulate gene expression by directing target mrna cleavage or translational inhibition. a large number of mirnas have been identified in plants. increasing evidence has shown that mirnas play multiple roles in plant biological processes. so far, identification of mirnas has been limited to a few model plant species, whose genomes have been sequenced. wheat (triticum aestivum l.) is one of the most important cereal crops ...201324085441
sequence variations of the partially dominant della gene rht-b1c in wheat and their functional impacts.rht-b1c, allelic to the della protein-encoding gene rht-b1a, is a natural mutation documented in common wheat (triticum aestivum). it confers variation to a number of traits related to cell and plant morphology, seed dormancy, and photosynthesis. the present study was conducted to examine the sequence variations of rht-b1c and their functional impacts. the results showed that rht-b1c was partially dominant or co-dominant for plant height, and exhibited an increased dwarfing effect. at the sequen ...201323918966
purification, characterization and identification of a senescence related serine protease in dark-induced senescent wheat leaves.senescence-related proteases play important roles in leaf senescence by regulating protein degradation and nutrient recycling. a 98.9kda senescence-related protease ep3 in wheat leaves was purified by ammonium sulfate precipitation, q-sepharose fast flow anion exchange chromatography and gel slicing after gel electrophoresis. due to its relatively high thermal stability, its protease activity did not decrease after incubation at 40°c for 1-h. ep3 protease was suggested to be a metal-dependent se ...201323910959
spider fauna of semiarid eastern colorado agroecosystems: diversity, abundance, and effects of crop intensification.spiders are critical predators in agroecosystems. crop management practices can influence predator density and diversity, which, in turn, can influence pest management strategies. crop intensification is a sustainable agricultural technique that can enhance crop production although optimizing soil moisture. to date, there is no information on how crop intensification affects natural enemy populations, particularly spiders. this study had two objectives: to characterize the abundance and diversit ...201323339794
why oviposit there? fitness consequences of a gall midge choosing the plant's youngest leaf.for animals that lay eggs, a longstanding question is, why do females choose particular oviposition sites? for insects that lay eggs on plants there are three hypotheses: maximizing suitable habitat for juveniles, maximizing female lifespan, and maximizing egg survival. we investigated the function of the oviposition-site choice behavior of a gall midge, the hessian fly, mayetiola destructor (say). in spite of living less than a day and having hundreds of eggs, the ovipositing female is choosy a ...201323339793
isolation and characterization of a psathyrostachys huashanica keng 6ns chromosome addition in common wheat.the development of alien addition lines is important for transferring useful genes from exotic species into common wheat. a hybrid of common wheat cv. 7182 (2n = 6x = 42, aabbdd) and psathyrostachys huashanica keng (2n = 2x = 14, nsns) via embryo culture produced the novel intergeneric disomic addition line 59-11. the seed morphology of 59-11 resembled the parent 7182 and it exhibited extreme agronomic characteristics, i.e., twin stable spikelets, fertile florets, and multi-kernel clusters. furt ...201323326537
wheat oxophytodienoate reductase gene taopr1 confers salinity tolerance via enhancement of abscisic acid signaling and reactive oxygen species scavenging.the 12-oxo-phytodienoic acid reductases (oprs) are classified into the two subgroups opri and oprii. the latter proteins participate in jasmonic acid synthesis, while the function of the former ones is as yet unclear. we describe here the characterization of the opri gene taopr1, isolated from the salinity-tolerant bread wheat (triticum aestivum) cultivar sr3. salinity stress induced a higher level of taopr1 expression in the seedling roots of cv sr3 than in its parental cultivar, jn177. this in ...201323321418
molecular markers as a complementary tool in risk assessments: quantifying interspecific gene flow from triticale to spring wheat and durum wheat.triticale is being considered as a bioindustrial crop in canada using genetic modification. because related spring wheat (triticum aestivum) and durum wheat (t. durum) may exhibit synchronous flowering and grow in proximity, determination of interspecific gene flow when triticale is the pollen donor is necessary to evaluate potential risk. pollen-mediated gene flow risk assessments generally rely on phenotypic markers to detect hybridization but dna markers could be powerful and less ambiguous i ...201323389776
'overgrowth' mutants in barley and wheat: new alleles and phenotypes of the 'green revolution' della gene.a suppressor screen using dwarf mutants of barley (hordeum vulgare l.) led to the isolation of 'overgrowth' derivatives, which retained the original dwarfing gene but grew at a faster rate because of a new mutation. the new mutations were in the slender1 (sln1) gene (11/13 cases), which encodes the della protein central to gibberellin (ga) signalling, showed 100% genetic linkage to sln1 (1/13), or were in the spindly1 (spy1) gene (1/13), which encodes another protein involved in ga signalling. t ...201323382550
characterization of root response to phosphorus supply from morphology to gene analysis in field-grown wheat.the adaptations of root morphology, physiology, and biochemistry to phosphorus supply have been characterized intensively. however, characterizing these adaptations at molecular level is largely neglected under field conditions. here, two consecutive field experiments were carried out to investigate the agronomic traits and root traits of wheat (triticum aestivum l.) at six p-fertilizer rates. root samples were collected at flowering to investigate root dry weight, root length density, arbusular ...201323382547
genetic characterization and mapping of the rht-1 homoeologs and flanking sequences in wheat.the introgression of reduced height (rht)-b1b and rht-d1b into bread wheat (triticum aestivum) varieties beginning in the 1960s led to improved lodging resistance and yield, providing a major contribution to the 'green revolution'. although wheat rht-1 and surrounding sequence is available, the genetic composition of this region has not been examined in a homoeologous series. to determine this, three rht-1-containing bacterial artificial chromosome (bac) sequences derived from the a, b, and d ge ...201323381809
structure, transcription and post-transcriptional regulation of the bread wheat orthologs of the barley cleistogamy gene cly1.the majority of genes present in the hexaploid bread wheat genome are present as three homoeologs. here, we describe the three homoeologous orthologs of the barley cleistogamy gene cly1, a member of the ap2 gene family. as in barley, the wheat genes (designated taap2-a, -b and -d) map to the sub-telomeric region of the long arms of the group 2 chromosomes. the structure and pattern of transcription of the taap2 homoeologs were similar to those of cly1. transcript abundance was high in the floret ...201323381807
characterisation of the wheat (triticum aestivum l.) transcriptome by de novo assembly for the discovery of phosphate starvation-responsive genes: gene expression in pi-stressed wheat.phosphorus (p) is an essential macronutrient for plant growth and development. to modulate their p homeostasis, plants must balance p uptake, mobilisation, and partitioning to various organs. despite the worldwide importance of wheat as a cultivated food crop, molecular mechanisms associated with phosphate (pi) starvation in wheat remain unclear. to elucidate these mechanisms, we used rna-seq methods to generate transcriptome profiles of the wheat variety 'chinese spring' responding to 10 days o ...201323379779
enhanced stability of thylakoid membrane proteins and antioxidant competence contribute to drought stress resistance in the tasg1 wheat stay-green mutant.a wheat stay-green mutant, tasg1, was previously generated via mutation breeding of hs2, a common wheat cultivar (triticum aestivum l.). compared with wild-type (wt) plants, tasg1 exhibited delayed senescence indicated by the slower degradation of chlorophyll. in this study, the stability of proteins in thylakoid membranes was evaluated in tasg1 under drought stress compared with wt plants in the field as well as in seedlings in the laboratory. drought stress was imposed by controlling irrigatio ...201323378376
cloning and characterization of two argonaute genes in wheat (triticum aestivum l.).argonaute proteins are key components of rna interference (rnai), playing important roles in rna-directed gene silencing. various classes of argonaute genes have been identified from plants and might be involved in developmental regulation. however, little is known about these genes in wheat (triticum aestivum).201323374504
aegilops tauschii single nucleotide polymorphisms shed light on the origins of wheat d-genome genetic diversity and pinpoint the geographic origin of hexaploid wheat.hexaploid wheat (triticum aestivum, genomes aabbdd) originated by hybridization of tetraploid triticum turgidum (genomes aabb) with aegilops tauschii (genomes dd). genetic relationships between a. tauschii and the wheat d genome are of central importance for the understanding of wheat origin and subsequent evolution. genetic relationships among 477 a. tauschii and wheat accessions were studied with the a. tauschii 10k infinium single nucleotide polymorphism (snp) array. aegilops tauschii consist ...201323374069
genetic improvement of bread wheat yield and associated traits in spain during the 20th century.a collection of 26 wheat genotypes widely grown in spain during the 20th century was evaluated in eight contrasting environments in order to quantify breeding achievements in yield and associated traits. from 1930 to 2000, yield increased at a rate of 35·1 kg/ha/yr or 0·88%/yr, but estimations of relative genetic gain (rgg) were environment-dependent. rgg estimated for yield were positively associated with the average minimum daily temperatures from sowing to heading in the testing environments ...201323365469
epigenetic modification contributes to the expression divergence of three taexpa1 homoeologs in hexaploid wheat (triticum aestivum).common wheat is a hexaploid species with most of the genes present as triplicate homoeologs. expression divergences of homoeologs are frequently observed in wheat, as well as in other polyploid plants. however, the mechanisms underlying this phenomenon are poorly understood. expansin genes play important roles in the regulation of cell size, as well as organ size. we found that all three taexpa1 homoeologs were silenced in seedling roots. in seedling leaves, taexpa1-a and taexpa1-d were expresse ...201323360546
effects of waterlogging on amyloplasts and programmed cell death in endosperm cells of triticum aestivum l.the effects of waterlogging on amyloplasts and programmed cell death (pcd) in endosperm cells in chinese wheat (triticum aestivum l.; cv: hua mai 8) are here discussed. four water treatments were established from anthesis to maturity: they were 3 days of waterlogging treatment (dwt), 7 dwt, 12 dwt, and moderate water supply (the control). lugol staining and scanning electron microscopy showed decreases in the number of amyloplasts and partially filled circular cavities under the waterlogging tre ...201323358649
tricin biosynthesis during growth of wheat under different abiotic stresses.in plants, o-methylation is mediated by an enzyme family of o-methyltransferases (omts) that transfer the methyl groups from the methyl donor, s-adenosyl-l-methionine (adomet) to suitable phenolic acceptor molecules. in a previous study [1], a flavonoid omt (taomt2) was isolated and characterized from wheat (triticum aestivum l.) leaves. its novel gene product catalyzes three sequential o-methylations of the flavone tricetin (5,7,3',4',5'-pentahydroxyflavone) to its 3'-monomethyl-(selgin)→3',5'- ...201323352409
dispersion and domestication shaped the genome of bread wheat.despite the international significance of wheat, its large and complex genome hinders genome sequencing efforts. to assess the impact of selection on this genome, we have assembled genomic regions representing genes for chromosomes 7a, 7b and 7d. we demonstrate that the dispersion of wheat to new environments has shaped the modern wheat genome. most genes are conserved between the three homoeologous chromosomes. we found differential gene loss that supports current theories on the evolution of w ...201323346876
tricolorin a as a natural herbicide.tricolorin a acts as pre- and post-emergence plant growth inhibitor. in pre-emergence it displays broad-spectrum weed control, inhibiting germination of both monocotyledonous (lolium mutliflorum and triticum vulgare) and dicotyledonous (physalis ixocarpa and trifolium alexandrinum) seeds, being the dicotyledonous seeds the most inhibited. tricolorin a also inhibited seedling growth, and seed respiration, and since the concentrations required for inhibiting both germination and respiration were s ...201323303337
proteomic analysis of spring freeze-stress responsive proteins in leaves of bread wheat (triticum aestivum l.).following three-day exposure to -5 °c simulated spring freeze stress, wheat plants at the anther connective tissue formation phase of spike development displayed the drooping and wilting of leaves and markedly increased rates of relative electrolyte leakage. we analysed freeze-stress responsive proteins in wheat leaves at one and three days following freeze-stress exposure, using two-dimensional electrophoresis and matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry. our ...201323298682
structural analysis and caco-2 cell permeability of the celiac-toxic a-gliadin peptide 31-55.celiac disease is a chronic enteropathy caused by the ingestion of wheat gliadin and other cereal prolamines. the synthetic peptides 31-43 (p31-43) and 31-49 (p31-49) from a-gliadin are considered to be model peptides for studying innate immunity in celiac disease. our previous study demonstrated that p31-43 and p31-49 are encrypted within peptide 31-55 (p31-55), which is naturally released from gastropancreatic digestion and is not susceptible to hydrolysis by brush border membrane enzymes. her ...201323298305
characterization of new loci for hessian fly resistance in common wheat.the discovery of several new loci for resistance to hessian fly was reported here. qhf.uga-6al, the late hr61 was recognized from wheat cultivar 26r61 on the distal end of 6al with resistance to both biotypes e and vh13. it is the first gene or qtl found on this particular chromosome. qhf.uga-3dl and qhf.uga-1al, physically assigned to the deletion bins 3dl2-0.27-0.81 and 1al1-0.17-0.61, respectively, were detected for resistance to biotype vh13. both qtl should represent new loci for hessian fl ...201323296492
discovery and development of exome-based, co-dominant single nucleotide polymorphism markers in hexaploid wheat (triticum aestivum l.).globally, wheat is the most widely grown crop and one of the three most important crops for human and livestock feed. however, the complex nature of the wheat genome has, until recently, resulted in a lack of single nucleotide polymorphism (snp)-based molecular markers of practical use to wheat breeders. recently, large numbers of snp-based wheat markers have been made available via the use of next-generation sequencing combined with a variety of genotyping platforms. however, many of these mark ...201323279710
genetic diversity of winter wheat (triticum aestivum l.) revealed by ssr markers. 201323274711
dissection of rye chromosomes by the gametocidal system.chromosome mutations occur in common wheat carrying a monosome of gametocidal (gc) chromosomes 2c and 3c(sat). these gc chromosomes have been known to induce chromosomal breakage in a rye chromosome 1r added to common wheat. we attempted to introduce the two gc chromosomes into the other six rye chromosome (2r to 7r) addition or substitution lines of common wheat to establish a set of chromosomal rearrangement-inducing lines for rye chromosomes. we obtained critical plants that had a pair of rye ...201324789968
development of a self-fertile ditelosomic line for the long arm of chromosome 4b and its characterization using ssr markers.the ditelosomic line for the long arm of chromosome 4b (4bl) of chinese spring (cs) wheat is not available because it is completely male sterile. since all deletions in the 4b short arm (4bs) cause male sterility in the homozygous condition, a male-fertility gene should be located in a distal region of 4bs. among the selfed progeny of a hybrid between a male-sterile 4bs deletion plant (4bs-8) and a japanese common wheat cultivar norin 61 (n61), we obtained self-fertile 4bs-8 homozygous deletion ...201324694394
qtl for yield and associated traits in the seri/babax population grown across several environments in mexico, in the west asia, north africa, and south asia regions.heat and drought adaptive quantitative trait loci (qtl) in a spring bread wheat population resulting from the seri/babax cross designed to minimize confounding agronomic traits have been identified previously in trials conducted in mexico. the same population was grown across a wide range of environments where heat and drought stress are naturally experienced including environments in mexico, west asia, north africa (wana), and south asia regions. a molecular genetic linkage map including 475 ma ...201323269228
molecular characterization of two y-type high molecular weight glutenin subunit alleles 1ay12 and 1ay8 from cultivated einkorn wheat (triticum monococcum ssp. monococcum).two y-type high molecular weight glutenin subunits (hmw-gss) 1ay12 and 1ay8 from the two accessions pi560720 and pi345186 of cultivated einkorn wheat (triticum monococcum ssp. monococcum, aa, 2n=2x=14), were identified by sodium dodecyl sulfate polyacrylamide gel electrophoresis (sds-page). the mobility of 1ay12 and 1ay8 was similar to that of 1dy12 and 1by8 from common wheat chinese spring, respectively. their orfs respectively consisted of 1812bp and 1935bp, encoding 602 and 643 amino acid res ...201323266635
multi-environment analysis and improved mapping of a yield-related qtl on chromosome 3b of wheat.improved mapping, multi-environment quantitative trait loci (qtl) analysis and dissection of allelic effects were used to define a qtl associated with grain yield, thousand grain weight and early vigour on chromosome 3bl of bread wheat (triticum aestivum l.) under abiotic stresses. the qtl had pleiotropic effects and showed qtl x environment interactions across 21 diverse environments in australia and mexico. the occurrence and the severity of water deficit combined with high temperatures during ...201323262551
univariate and multivariate molecular spectral analyses of lipid related molecular structural components in relation to nutrient profile in feed and food mixtures.the objectives of this study were (i) to determine lipid related molecular structures components (functional groups) in feed combination of cereal grain (barley, hordeum vulgare) and wheat (triticum aestivum) based dried distillers grain solubles (wheat ddgss) from bioethanol processing at five different combination ratios using univariate and multivariate molecular spectral analyses with infrared fourier transform molecular spectroscopy, and (ii) to correlate lipid-related molecular-functional ...201323261514
silver nanoparticles disrupt wheat (triticum aestivum l.) growth in a sand matrix.hydroponic plant growth studies indicate that silver nanoparticles (ag nps) are phytotoxic. in this work, the phytotoxicity of commercial ag nps (10 nm) was evaluated in a sand growth matrix. both nps and soluble ag were recovered from water extracts of the sand after growth of plants challenged with the commercial product; the surface charge of the ag nps in this extract was slightly reduced compared to the stock nps. the ag nps reduced the length of shoots and roots of wheat in a dose-dependen ...201323259709
the protective effect of hulls on the occurrence of alternaria mycotoxins in spelt wheat.since there is an increasing demand on the world market for alternative crops suitable for organic production, spelt wheat (triticum aestivum spp. spelta l.) is a highly attractive farming option. alternaria species are widespread and infect a great variety of economically important crops. certain species are known producers of mycotoxins. the aim of this study was to assess the protective effect of hulls covering the spelt kernels on alternaria toxins.201323255302
wheat centromeric retrotransposons: the new ones take a major role in centromeric structure.the physical map of the hexaploid wheat chromosome 3b was screened using centromeric dna probes. a 1.1-mb region showing the highest number of positive bacterial artificial chromosome (bac) clones was fully sequenced and annotated, revealing that 96% of the dna consisted of transposable elements, mainly long terminal repeat (ltr) retrotransposons (88%). estimation of the insertion time of the transposable elements revealed that crw (also called cereba) and quinta are the youngest elements at the ...201323253213
uptake of perfluorooctane sulfonate (pfos) by wheat (triticum aestivum l.) plant.perfluorooctane sulfonate (pfos) is a highly persistent organic pollutant which has raised many concerns in recent years. research focusing on plant uptake of pfos is very necessary when considering its risk of transfer from soil into food chain. in this work, the uptake of pfos by wheat (triticum aestivum l.) which is the most main food crop in northern china, was studied. to predict the kinetic uptake limit, the partition-dominated equilibrium sorption of pfos by roots of wheat was determined. ...201323245763
developmental and growth controls of tillering and water-soluble carbohydrate accumulation in contrasting wheat (triticum aestivum l.) genotypes: can we dissect them?in wheat, tillering and water-soluble carbohydrates (wscs) in the stem are potential traits for adaptation to different environments and are of interest as targets for selective breeding. this study investigated the observation that a high stem wsc concentration (wscc) is often related to low tillering. the proposition tested was that stem wsc accumulation is plant density dependent and could be an emergent property of tillering, whether driven by genotype or by environment. a small subset of re ...201323213136
use of genotype x environment interactions to understand rooting depth and the ability of wheat to penetrate hard soils.root systems are well-recognized as complex and a variety of traits have been identified as contributing to plant adaptation to the environment. a significant proportion of soil in south-western australia is prone to the formation of hardpans of compacted soil that limit root exploration and thus access to nutrients and water for plant growth. genotypic variation has been reported for root-penetration ability of wheat in controlled conditions, which has been related to field performance in these ...201323204508
selenium (se) seed priming induced growth and biochemical changes in wheat under water deficit conditions.insufficient stand establishment at early growth stages in wheat (triticum aestivum l.) due to drought stress is a major problem that limits overall efficiency and yield of crop. priming of seed is an effective method for raising seed performance and improving tolerance of crops to abiotic stresses especially drought. the seeds of two local wheat cultivars (kohistan-97 and pasban-90) were soaked in distilled water or sodium selenate solutions of 25, 50, 75, and 100 μm for 1/2 or 1 h at 25 °c and ...201323197374
genomic regions associated with the nitrogen limitation response revealed in a global wheat core collection.modern wheat (triticum aestivum l.) varieties in western europe have mainly been bred, and selected in conditions where high levels of nitrogen-rich fertilizer are applied. however, high input crop management has greatly increased the risk of nitrates leaching into groundwater with negative impacts on the environment. to investigate wheat nitrogen tolerance characteristics that could be adapted to low input crop management, we supplied 196 accessions of a wheat core collection of old and modern ...201323192671
evaluation of synthetic hexaploid wheats (derivative of durum wheats and aegilops tauschii accessions) for studying genetic diversity using randomly amplified polymorphic dna (rapd) markers.synthetic hexaploid (sh) wheat derived from crossing tetraploid durum wheat and diploid aegilops tauschii provide germplasm for wheat improvement as the conventional wheat varieties possess very low genetic diversity. this study aims to identify diverse sh lines which can be used in breeding programs for transferring the desired traits into bread wheat. the study was conducted on 24 sh lines using 10 pairs of randomly amplified polymorphic dna (rapd) markers. application of rapds showed the pres ...201323192610
identification of a novel homolog for a calmodulin-binding protein that is upregulated in alloplasmic wheat showing pistillody.intracellular signaling pathways between the mitochondria and the nucleus are important in both normal and abnormal development in plants. the homeotic transformation of stamens into pistil-like structures (a phenomenon termed pistillody) in cytoplasmic substitution (alloplasmic) lines of bread wheat (triticum aestivum) has been suggested to be induced by mitochondrial retrograde signaling, one of the forms of intracellular communication. we showed previously that the mitochondrial gene orf260 c ...201323192388
alginate oligosaccharides enhanced triticum aestivum l. tolerance to drought stress.alginate oligosaccharides (aos) prepared from degradation of alginate is a potent plant elicitor. hydroponic experiments were carried out to investigate the mechanism of aos on improving triticum aestivum l. resistant ability to drought stress. drought model was simulated by exposing the roots of wheat to polyethylene glycol-6000 (peg-6000) solution (150 g l(-1)) for 4 days and the growth of wheat treated with peg was significantly decreased. however, after aos application, seedling and root len ...201323178482
shifts of functional gene representation in wheat rhizosphere microbial communities under elevated ozone.although the influence of ozone (o(3)) on plants has been well studied in agroecosystems, little is known about the effect of elevated o(3) (eo(3)) on soil microbial functional communities. here, we used a comprehensive functional gene array (geochip 3.0) to investigate the functional composition, and structure of rhizosphere microbial communities of yannong 19 (o(3)-sensitive) and yangmai 16 (o(3)-relatively sensitive) wheat (triticum aestivum l.) cultivars under eo(3). compared with ambient o( ...201323151639
comparative analysis of syntenic genes in grass genomes reveals accelerated rates of gene structure and coding sequence evolution in polyploid wheat.cycles of whole-genome duplication (wgd) and diploidization are hallmarks of eukaryotic genome evolution and speciation. polyploid wheat (triticum aestivum) has had a massive increase in genome size largely due to recent wgds. how these processes may impact the dynamics of gene evolution was studied by comparing the patterns of gene structure changes, alternative splicing (as), and codon substitution rates among wheat and model grass genomes. in orthologous gene sets, significantly more acquired ...201323124323
phytosiderophore release by wheat genotypes differing in zinc deficiency tolerance grown with zn-free nutrient solution as affected by salinity.there is limited information concerning the effect of salinity on phytosiderophores exudation from wheat roots. the aim of this hydroponic experiment was to investigate the effect of salinity on phytosiderophore release by roots of three bread wheat genotypes differing in zn efficiency (triticum aestivum l. cvs. rushan, kavir, and cross) under zn deficiency conditions. wheat seedlings were transferred to zn-free nutrient solutions and exposed to three salinity levels (0, 60, and 120 mm nacl). th ...201323122914
jacalin domain in wheat jasmonate-regulated protein ta-ja1 confers agglutinating activity and pathogen resistance.ta-ja1 is a jacalin-like lectin from wheat (triticum aestivum) plants. to date, its homologs are only observed in the gramineae family. our previous experiments have demonstrated that ta-ja1 contains a modular structure consisting of an n-terminal dirigent domain and a c-terminal jacalin-related lectin domain (jrl) and this protein exhibits a mannose-specific lectin activity. the over-expression of ta-ja1 gene provides transgenic plants a broad-spectrum resistance to diseases. here, we report th ...201323116711
will intra-specific differences in transpiration efficiency in wheat be maintained in a high co₂ world? a face study.this study evaluates whether the target breeding trait of superior leaf level transpiration efficiency is still appropriate under increasing carbon dioxide levels of a future climate using a semi-arid cropping system as a model. specifically, we investigated whether physiological traits governing leaf level transpiration efficiency, such as net assimilation rates (a(net)), stomatal conductance (g(s)) or stomatal sensitivity were affected differently between two triticum aestivum l. cultivars dif ...201323035842
increase of seed germination, growth and membrane integrity of wheat seedlings by exposure to static and a 10-khz electromagnetic field.there is a large body of experimental data demonstrating various effects of magnetic field (mf) on plants growth and development. although the mechanism(s) of perception of mf by plants is not yet elucidated, there is a possibility that like other stimuli, mf exerts its effects on plants by changing membrane integrity and conductance of its water channels, thereby influencing growth characteristics. in this study, the seeds of wheat (triticum aestivum l. cv. kavir) were imbibed in water overnigh ...201323343429
genetic and epigenetic variations induced by wheat-rye 2r and 5r monosomic addition lines.monosomic alien addition lines (maals) can easily induce structural variation of chromosomes and have been used in crop breeding; however, it is unclear whether maals will induce drastic genetic and epigenetic alterations.201323342073
effects of magnetic field on cell dedifferentiation and callus induction derived from embryo culture in bread wheat (triticum aestivum. l) genotypes.current study was conducted to investigation of effect of magnetic field on cell dedifferentiation and follow it callus induction derived from mature embryo culture in bread wheat genotypes. for this purpose, a factorial experiment based on completely randomized design was carried out with two wheat genotypes and three level of magnetic field strength (0.0, 8.8 and 17.6 tesla) in three replications. callus growth rate (cgr), relative growth rate (rgr), callus relative growth rate (crgr), percent ...201323090480
influence of nine antibiotics on key secondary metabolites and physiological characteristics in triticum aestivum: leaf volatiles as a promising new tool to assess toxicity.extensive worldwide use of antibiotics has resulted in significant diffuse pollution of antibiotics in environment, but understanding the effects of many important antibiotics on plant physiological activity is still limited, especially at realistic environmental concentrations of antibiotics. to gain insight into influences of different antibiotics on plant performance and identify the most promising traits for fast assessment of toxicity, we studied impacts of nine antibiotics (amoxicillin, am ...201323084040
efficient regeneration potential is closely related to auxin exposure time and catalase metabolism during the somatic embryogenesis of immature embryos in triticum aestivum l.regeneration of cultured tissue is a prerequisite of agrobacterium- and biolistic-mediated plant transformation. in this study, an efficient protocol for improving wheat (triticum aestivum l.) immature embryo regeneration was developed. based on the statistical analysis of embryogenic callus induction efficiency, green spot differentiation efficiency, and plant regeneration efficiency from five wheat accessions, improved culture conditions were found to be more effective for embryogenic callus p ...201322815184
alleviation of high salt toxicity-induced oxidative damage by salicylic acid pretreatment in two wheat cultivars.role of exogenous salicylic acid (sa) in the antioxidative response to salt toxicity of two wheat (triticum aestivum) cultivars (gerek-79 and bezostaya) was investigated. hydroponic growth environment of 10-day wheat seedlings grown under normal conditions (22/20°c) was adjusted to 0.0, 0.25, 0.50 and 0.75 m of salt (nacl), and then freshly prepared sa solutions (0.0, 0.01 and 0.1 mm) were once sprayed on leaves of the same seedlings. activities of superoxide dismutase (sod), peroxidase (pox) an ...201322722774
comparative analysis of genome composition in triticeae reveals strong variation in transposable element dynamics and nucleotide diversity.a 454 sequencing snapshot was utilised to investigate the genome composition and nucleotide diversity of transposable elements (tes) for several triticeae taxa, including triticum aestivum, hordeum vulgare, hordeum spontaneum and secale cereale together with relatives of the a, b and d genome donors of wheat, triticum urartu (a), aegilops speltoides (s) and aegilops tauschii (d). additional taxa containing the a genome, triticum monococcum and its wild relative triticum boeoticum, were also incl ...201323057663
anther extrusion and plant height are associated with type i resistance to fusarium head blight in bread wheat line 'shanghai-3/catbird'.fusarium head blight (fhb) is a destructive wheat disease of global importance. resistance breeding depends heavily on the fhb1 gene. the cimmyt line shanghai-3/catbird (sha3/cbrd) is a promising source without this gene. a recombinant inbred line (ril) population from the cross of sha3/cbrd with the german spring wheat cv. naxos was evaluated for fhb resistance and related traits in field trials using spray and spawn inoculation in norway and point inoculation in china. after spray and spawn in ...201323052019
joint ecotoxicology of cadmium and metsulfuron-methyl in wheat (triticum aestivum).herbicide is indispensable for crop production. however, substantial usage of herbicide has led to its increasing accumulation in soils and crops. in addition, cadmium has become one of the widely occurring contaminants in soils due to its significant release into environment via anthropogenic activities. in this study, ecotoxicological investigations were made by exposing the food crop wheat to joint contaminations of cd and metsulfuron-methyl, a sulfonylurea herbicide. we analyzed growth and p ...201322773146
[involvement of salicylic acid and nitric oxide in protective reactions of wheat under the influence of heavy metals].this article studies the effect of salicylic acid (sa) and nitric oxide (no) on triticum aestivum l. wheat plants exposed to the influence of high concentrations of copper and zinc compounds. it is shown that heavy metals (hms) caused a decrease in the growth parameters in the overground and underground plant parts and contributed to a sharp deterioration in the energy balance and the situation regarding oxidative stress. sa and no exerted a protective effect, which was expressed in the increase ...201322567892
a novel wheat α-amylase inhibitor gene, tahps, significantly improves the salt and drought tolerance of transgenic arabidopsis.on the basis of microarray analyses of the salt-tolerant wheat mutant rh8706-49, a previously unreported salt-induced gene, designated as tahps [triticum aestivum hypothetical (hps)-like protein], was cloned. real-time quantitative polymerase chain reaction analyses showed that expression of the gene was induced by abscisic acid, salt and drought. the encoded protein was found to be localized mainly in the plasma membranes. transgenic arabidopsis plants overexpressing tahps were more tolerant to ...201323039848
biosorption of pb(ii) and cr(iii) from aqueous solutions: breakthrough curves and modeling studies.the sorption capacity parameters obtained for batch studies provide useful information about biosorption system. however, such data fail to explain the process under continuous-flow conditions. the present study is an attempt to explore the biosorption of pb(ii) and cr(iii) by straw from local wheat (triticum aestivum). the biosorbent has been characterized by using fourier transform infrared spectroscopy and surface area and elemental analyses and found to be porous and polyfunctional. s-shaped ...201322426844
organization of actin cytoskeleton during meiosis i in a wheat thermo-sensitive genic male sterile line.bs366 is a thermo-sensitive male sterile line of wheat (triticum aestivum l.) for two-line hybrid breeding, which exhibits aberrant meiotic cytokinesis under low temperature. through transcriptome analysis, a possible regulatory role for plant actin cytoskeleton was suggested. however, the organization of actin cytoskeleton in meiosis has been poorly understood so far. here, fixed microsporocytes during meiosis were labeled with tetramethylrhodamine isothiocyanate-phalloidin and 4',6-diamidino-2 ...201322350736
species composition and diversity of parasitoids and hyper-parasitoids in different wheat agro-farming systems.insect communities depend on both their local environment and features of the surrounding habitats. diverse plant communities may enhance the abundance and species diversity of local natural enemies, which is possible due to a higher abundance and species diversity in complex landscapes. this hypothesis was tested using cereal aphid parasitoids and hyper-parasitoids by comparing 18 spring wheat fields, triticum aestivum l. (poales: poaceae), in structurally-complex landscapes (dominated by semi- ...201324773471
growth behavior studies of bread wheat plant exposed to municipal landfill leachate.pot experiments were carried out to study the effect of different dilutions of leachate generated from municipal solid waste (msw) landfill on bread wheat (triticum aestivum). eight treatment groups with different concentrations (0-100%) of leachate were prepared and treatments were given to the plants till they reached complete vegetative phase (45 days). the growth performances of wheat plants were assessed in terms of various parameters such as shoot and root length, dry biomass and chlorophy ...201324555341
effects of dual stress (high salt and high temperature) on the photochemical efficiency of wheat leaves (triticum aestivum).in this study, we have focused on those components of photosystem (ps) ii which are significantly affected by dual stress (high salt and temperature) on wheat as measured by plant efficiency analyser (pea). it was observed that some of the chlorophyll a fluorescence parameters were temperature dominated, while some other parameters were salt dominated. we have also observed additive effects for parameters like antenna size heterogeneity. an important observation was that in high temperature alon ...201324431485
bex-db: bioinformatics workbench for comprehensive analysis of barley-expressed genes.barley (hordeum vulgare) is one of the world's most important cereal crops. although its large and complex genome has held back barley genomics for quite a while, the whole genome sequence was released in 2012 by the international barley genome sequencing consortium (ibsc). moreover, more than 30,000 barley full-length cdnas (flcdnas) are now available in the public domain. here we present the barley gene expression database (bex-db: http://barleyflc.dna.affrc.go.jp/bexdb/index.html) as a reposi ...201324399916
differential contribution of two ppd-1 homoeoalleles to early-flowering phenotype in nepalese and japanese varieties of common wheat.wheat landraces carry abundant genetic variation in heading and flowering times. here, we studied flowering-related traits of two nepalese varieties, ku-4770 and ku-180 and a japanese wheat cultivar, shiroganekomugi (sgk). these three wheat varieties showed similar flowering time in a common garden experiment. in total, five significant quantitative trait loci (qtls) for three examined traits, the heading, flowering and maturation times, were detected using an f2 population of sgk/ku-4770. the q ...201324399909
genetic diversity in bread wheat (triticum aestivum l.) genotypes.wheat is one most important cereal crops grown in ethiopia. yet, keeping in view insufficient information on exotic bread wheat genotypes is limiting the access to useful traits present among the genotypes in the somali region of ethiopia. the aim of the study was to assess the extent of genetic diversity among bread wheat genotypes. twenty six bread wheat (triticum aestivum l.) genotypes obtained from icarda-cimmyt were tested at gode and kelafo research sites at three cropping seasons (2009/10 ...201324511742
cell wall degradation and the dynamic changes of ca2+ and related enzymes in the developing aerenchyma of wheat (triticum aestivum l.) under waterlogging.this research was aimed to study the cell wall degradation and the dynamic changes of ca2+ and related enzymes in developing aerenchyma of wheat root under waterlogging. an examination of morphological development by light and electron microscope revealed that the structure of cell wall in middle cortical cells remained intact after 12 h of waterlogging and turned thinner after waterlogging for 24 h. at 48 h, the aerenchyma has been formed. the cellulase activity gradually increased in middle co ...201324013894
wheat gene tas3 contributes to powdery mildew susceptibility.identification of tas3 as a potential susceptibility gene encoding a protein homologous to ulp1 protease in wheat, which may regulate sumo function facilitating powdery mildew attack. some plant genes that are required for susceptibilities to certain pathogens are known as susceptibility genes or susceptibility factors, whose loss-of-function mutations can confer the plants resistances. to identify potential susceptibility genes to powdery mildew in wheat, differentially expressed genes in compa ...201324013794
analysing complex triticeae genomes - concepts and strategies.the genomic sequences of many important triticeae crop species are hard to assemble and analyse due to their large genome sizes, (in part) polyploid genomes and high repeat content. recently, the draft genomes of barley and bread wheat were reported thanks to cost-efficient and fast ngs technologies. the genome of barley is estimated to be 5 gb in size whereas the genome of bread wheat accounts for 17 gb and harbours an allo-hexaploid genome. direct assembly of the sequence reads and access to t ...201324011260
discovery, distribution and diversity of puroindoline-d1 genes in bread wheat from five countries (triticum aestivum l.).grain texture is one of the most important characteristics in bread wheat (triticum aestivum l.). puroindoline-d1 genes play the main role in controlling grain texture and are intimately associated with the milling and processing qualities in bread wheat.201324011219
uptake of (14)c-atropine and/or its transformation products from soil by wheat (triticum aestivum var kronjet) and their translocation to shoots.plant uptake of toxins and their translocation to edible plant parts are important processes in the transfer of contaminants into the food chain. atropine, a highly toxic muscarine receptor antagonist produced by solanacea species, is found in all plant tissues and can enter the soil and hence be available for uptake by crops. the absorption of atropine and/or its transformation products from soil by wheat (triticum aestivum var kronjet) and its distribution to shoots was investigated by growing ...201324007480
dissecting the genetic architecture of frost tolerance in central european winter wheat.abiotic stress tolerance in plants is pivotal to increase yield stability, but its genetic basis is still poorly understood. to gain insight into the genetic architecture of frost tolerance, this work evaluated a large mapping population of 1739 wheat (triticum aestivum l.) lines and hybrids adapted to central europe in field trials in germany and fingerprinted the lines with a 9000 single-nucleotide polymorphism array. additive effects prevailed over dominance effects. a two-dimensional genome ...201324006418
differential rrna genes expression in bread wheat and its inheritance.the expression of the ribosomal rna (rrna) genes from rye, located within the nucleolus organizer regions (nors), is repressed by cytosine methylation in wheat x rye hybrids and in triticale, as consequence of nucleolar dominance. our previous study revealed that bread wheat cultivars with a maximum number of four ag-nors presented high level of rdna cytosine methylation when compared to others with a maximum of six ag-nors. in order to evaluate the inheritance of the ag-nors number and nor meth ...201323982417
immunotoxicological evaluation of wheat genetically modified with tadreb4 gene on balb/c mice.to evaluate the immunotoxicological effects of genetically modified wheat with tadreb4 gene in female balb/c mice.201323981552
analysis of storage and structural carbohydrates in developing wheat (triticum aestivum l.) grains using quantitative analysis and microscopy.in this paper, the content of all major carbohydrates and the spatial distribution of starch, arabinoxylan and β-glucan in developing wheat kernels (triticum aestivum l. var. homeros) from anthesis until maturity were studied. by combining information from microscopy and quantitative analysis, a comprehensive overview on the changes in storage and structural carbohydrates in developing grains was obtained. in the phase of cell division and expansion, grains were characterized by a rapid accumula ...201323980757
a quick investigation of the detrimental effects of environmental pollutant polycyclic aromatic hydrocarbon fluoranthene on the photosynthetic efficiency of wheat (triticum aestivum).the present study describes the effects of polycyclic aromatic hydrocarbon pollutant fluoranthene (flt) on photochemical efficiency of plants and hence their growth. chlorophyll a fluorescence measurements were performed in order to get quick and reliable information about the effects of fluoranthene. the number of active reaction centres decreased by more than 20% in flt treated samples. the results show that flt affects the overall primary photochemistry by inhibiting the number of active reac ...201323979534
development and characterization of a psathyrostachys huashanica keng 7ns chromosome addition line with leaf rust resistance.the aim of this study was to characterize a triticum aestivum-psathyrostachys huashanica keng (2n = 2x = 14, nsns) disomic addition line 2-1-6-3. individual line 2-1-6-3 plants were analyzed using cytological, genomic in situ hybridization (gish), est-ssr, and est-sts techniques. the alien addition line 2-1-6-3 was shown to have two p. huashanica chromosomes, with a meiotic configuration of 2n = 44 = 22 ii. we tested 55 est-ssr and 336 est-sts primer pairs that mapped onto seven different wheat ...201323976963
efficacy of pyramiding elite alleles for dynamic development of plant height in common wheat.plant height is an important botanical feature closely related to yield. two populations consisting of 118 and 262 accessions respectively were used to identify elite alleles for plant height and to validate their allelic effects. plant height was measured from the early booting to the flowering stages. simple sequence repeat markers for candidate quantitative trait locus (qtl) regions with large effects identified in a doubled haploid (dh) population (hanxuan 10 × lumai 14) were selected for fu ...201323976874
chromosomal location of genomic ssr markers associated with yellow rust resistance in turkish bread wheat (triticum aestivum l.).we have previously reported xgwm382 as a diagnostic marker for disease resistance against yellow rust in izgi2001 x es14 f2 population. among the same earlier tested 230 primers, one ssr marker (xgwm311) also amplified a fragment which is present in the resistant parent and in the resistant bulks, but absent in the susceptible parent and in the susceptible bulks. to understand the chromosome group location of these diagnostic markers, xgwm382 and xgwm311, in the same population, we selected 16 s ...201323970078
long-term growth under elevated co2 suppresses biotic stress genes in non-acclimated, but not cold-acclimated winter wheat.this study compared the photosynthetic performance and the global gene expression of the winter hardy wheat triticum aestivum cv norstar grown under non-acclimated (na) or cold-acclimated (ca) conditions at either ambient co2 or elevated co2. ca norstar maintained comparable light-saturated and co2-saturated rates of photosynthesis but lower quantum requirements for psii and non-photochemical quenching relative to na plants even at elevated co2. neither na nor ca plants were sensitive to feedbac ...201323969557
Refresh
firstprev
...21222324252627282930...
nextlast
Displaying items 2301 - 2400 of 7762