| experiments on chromosome elimination in the gall midge, mayetiola destructor. | | 1970 | 5497456 |
| expressed sequence tags from a wheat-rye translocation line (2bs/2rl) infested by larvae of hessian fly [mayetiola destructor (say)]. | of the 16 known biotypes of the hessian fly [ mayetiola destructor (say)], biotype l is recognized as being the most virulent. we have previously reported the development of near-isogenic lines (nils) (bc(3)f(3:4)) by backcross introgression (coker797*4/hamlet) that differed by the presence or absence of the h21 gene on 2rl chromatin. florescence in situ hybridization analysis revealed introgressed 2rls in nils possessing the h21 gene, but no signal was detected in nils lacking 2rl. as part of a ... | 2003 | 12845472 |
| a group of related cdnas encoding secreted proteins from hessian fly [mayetiola destructor (say)] salivary glands. | a group of cdnas has been isolated and characterized from hessian fly [mayetiola destructor (say)] salivary glands. members in this group appear to encode proteins with secretion signal peptides at the n-terminals. the mature putative proteins are small, basic proteins with calculated molecular weights that ranged from 8.5 to 10 kda, and isoelectric points from 9.92 to 10.90. sequence analysis indicated a strong selection for mutations that generate amino acid changes within the coding region. n ... | 2004 | 14728671 |
| tiny genomes and endoreduplication in strepsiptera. | using flow cytometry, the genome sizes of two species of strepsiptera were studied: that of male caenocholax fenyesi texensis kathirithamby & johnston (myrmecolacidae) at 108 mb, which is the smallest insect genome documented to date; and those of male and female xenos vesparum rossi (stylopidae), which are 1c = 130 and 133 mb, respectively. the genome sizes of the following were analysed for comparative purposes: (a) the hessian fly, mayetiola destructor (say), which was previously reported to ... | 2004 | 15606806 |
| molecular cloning and characterization of two digestive serine proteases from the hessian fly, mayetiola destructor. | full-length cdna and genomic sequences for two genes (designated mdesprot-i and mdesprot-ii) encoding digestive serine proteases in hessian fly, mayetiola destructor, have been cloned and characterized. the deduced amino acid sequences revealed similarity with trypsin-like digestive serine proteases from other dipterans. both mdesprot-i and mdesprot-ii encoded proteins with secretion signal peptides at the n-terminals, indicating the proteins are secreted proteases that should function as midgut ... | 2005 | 15926900 |
| differential expression of two cytochrome p450 genes in compatible and incompatible hessian fly/wheat interactions. | we have recovered two hessian fly cytochrome p450 cdnas from an ongoing midgut est project. cyp6az1 and cyp6ba1 represent two new subfamilies within the cyp6 family. the deduced amino acid sequences for cyp6az1 and cyp6ba1 show conserved structural and functional domains of insect p450s. expression analysis with reverse transcription-polymerase chain reaction (rt-pcr) indicated that cyp6az1 is midgut specific and induced during active larval feeding, whereas cyp6ba1 was expressed in all tissues ... | 2005 | 15978999 |
| a physically anchored genetic map and linkage to avirulence reveals recombination suppression over the proximal region of hessian fly chromosome a2. | resistance in wheat (triticum aestivum) to the hessian fly (mayetiola destructor), a major insect pest of wheat, is based on a gene-for-gene interaction. close linkage (3 +/- 2 cm) was discovered between hessian fly avirulence genes vh3 and vh5. bulked segregant analysis revealed two dna markers (28-178 and 23-201) within 10 cm of these loci and only 3 +/- 2 cm apart. however, 28-178 was located in the middle of the short arm of hessian fly chromosome a2 whereas 23-201 was located in the middle ... | 2004 | 15166159 |
| economic impact of hessian fly (diptera: cecidomyiidae) on spring wheat in oregon and additive yield losses with fusarium crown rot and lesion nematode. | damage caused by hessian fly, mayetiola destructor (say), was quantified in spring wheat, triticum aestivum l., trials near pendleton and moro, or, during 2001 and 2002. five field experiments were established to examine genetic resistance to fusarium crown rot, fusarium pseudograminearum (o'donnell & aoki), and economic damage by lesion nematode, pratylenchus neglectus (rensch, 1924) (filipjev schuurmanns & stekhoven, 1941) and pratylenchus thornei (sher & allen, 1941). hessian fly became the d ... | 2004 | 15154461 |
| characterization of two genes expressed in the salivary glands of the hessian fly, mayetiola destructor (say). | two genes, ssgp-11a1 and ssgp-12a1, have been isolated that encodes proteins with a secretion signal peptide at then-terminals from the hessian fly (mayetiola destructor (say)). the ssgp-11a1 gene contains one small intron (89 bp) and encodes a putative protein with 79 amino acids. the first 18 amino acids constitute a putative secretion signal peptide. the ssgp-12a1 gene contains three small introns and encodes a putative protein with 234 amino acids. the first 19 amino acids constitute a putat ... | 2004 | 14871619 |
| quarantine control of hessian fly (diptera: cecidomyiidae) in exported hay: a new treatment for large-size, polypropylene fabric-wrapped bales and a 3-d fumigation for compressed standard bales. | hessian fly puparia (37,167), mayetiola destructor (say), did not survive a large-scale commercial test (three freight containers) of a new quarantine treatment using compression (32 kg/cm2) and hydrogen phosphide fumigation (61 g/28.2 m3) for large-size, polypropylene fabric-wrapped bales of hay exported to japan. mean +/- sem temperatures in the large-size bales in different locations in the freight containers ranged from 18.0 +/- 0.9 to 26.0 +/- 1.3 degrees c during the 7-d test conducted in ... | 2003 | 14503610 |
| phenotypic assessment and mapped markers for h31, a new wheat gene conferring resistance to hessian fly (diptera: cecidomyiidae). | a new source of resistance to the highly virulent and widespread biotype l of the hessian fly, mayetiola destructor (say), was identified in an accession of tetraploid durum wheat, triticum turgidum desf., and was introgressed into hexaploid common wheat, triticum aestivum l. genetic analysis and deletion mapping revealed that the common wheat line contained a single locus for resistance, h31, residing at the terminus of chromosome 5bs. h31 is the first hessian fly-resistance gene to be placed o ... | 2003 | 12928782 |
| a new hessian fly resistance gene (h30) transferred from the wild grass aegilops triuncialis to hexaploid wheat. | a new hessian fly (mayetiola destructor say) resistance gene from aegilops triuncialis and its transfer to hexaploid wheat via interspecific hybridisation is described. the transfer line tr-3531 (42 chromosomes), derived from the cross [(triticum turgidum x ae. triuncialis) x triticum aestivum] and carrying the heterodera avenae resistance gene cre7, showed a high level of resistance to the m. destructor biotype prevailing in the sw of spain. a single dominant gene (h30) seems to determine the h ... | 2003 | 12748776 |
| development of sts markers linked to hessian fly resistance gene h6 in wheat. | hessian fly is one of the world's most destructive insect pests of wheat triticum aestivum l. we have used the combination of near-isogenic lines (nil) and random amplified polymorphic dna (rapd) analysis to screen up to 2,000 primers to identify dna markers that are linked to gene h6 that confers resistance to biotype b of the insect. this screen produced six primers that show polymorphic fragments associated with resistance by h6. we have screened 440 f(2) individuals from a cross of the susce ... | 2002 | 12582491 |
| grasses and gall midges: plant defense and insect adaptation. | the interactions of two economically important gall midge species, the rice gall midge and the hessian fly, with their host plants, rice and wheat, respectively, are characterized by plant defense via r genes and insect adaptation via avr genes. the interaction of a third gall midge species, the orange wheat blossom midge, with wheat defense r genes has not yet exhibited insect adaptation. because of the simple genetics underlying important aspects of these gall midge-grass interactions, a uniqu ... | 2003 | 12460937 |
| chromosome landing near avirulence gene vh13 in the hessian fly. | aflp markers in linkage disequilibrium with vh13, an avirulence gene in the hessian fly (mayetiola destructor) that conditions avirulence to resistance gene h13 in wheat (triticum spp.), were discovered by bulked segregant analysis. five aflps were converted into codominant site-specific markers that genetically mapped within 13 cm of this gene. flanking markers used as probes positioned vh13 near the telomere of the short arm of hessian fly chromosome x2. these results suggest that the x-linked ... | 2002 | 12416613 |
| a lectin-like wheat gene responds systemically to attempted feeding by avirulent first-instar hessian fly larvae. | through gene-for-gene interactions, wheat plants respond to specific biotypes of hessian fly upon the initiation of first-instar larval feeding. leaves of plants containing the h9 resistance gene responded to avirulent biotype l. larvae with rapid changes in the levels of several mrna transcripts and initiation of an incompatible interaction. a low-copy gene, hfr-1 (hessian fly-response gene 1), responded with increased mrna levels for two days before returning to preinfestation levels by day fi ... | 2002 | 12199504 |
| oviposition responses by hessian fly, mayetiola destructor, to wheats varying in surfaces waxes. | leaf waxes are known to contain oviposition stimulants for hessian fly. in dual-choice tests comparing seedlings of each of three nonglaucous lines of wheat with its corresponding glaucous line, hessian flies laid similar numbers of eggs on each genotype. however, when plants from these genotypes were tested at the flag-leaf stage. hessian flies deposited 25-100% more eggs on the nonglaucous genotype compared to normal wax genotype in each pair. leaf waxes extracted from the genotypes in one of ... | 2002 | 11868674 |
| polymorphisms flanking the mariner integration sites in the rice gall midge (orseolia oryzae wood-mason) genome are biotype-specific. | in an effort to study genome diversity within and between the indian biotypes of the asian rice gall midge, orseolia oryzae, a major insect pest of rice, we made use of mariner transposable element integration site polymorphisms. using degenerate primers, the design of which is based on mariner sequences, we amplified a ca. 450 bp mariner sequence from the rice gall midge. the mariner sequence showed homology with that of a mariner element isolated from the hessian fly, mayetiola destructor, a m ... | 2001 | 11768221 |
| genotypic interaction between resistance genes in wheat and virulence genes in the hessian fly mayetiola destructor (diptera: cecidomyiidae). | the genotypic interaction between wheat resistance genes h3, h6, h7h8, h9 and virulence genes vh3, vh6, vh7vh8, vh9 of hessian fly, mayetiola destructor (say), was studied in a growth chamber. results showed that plants homozygous and heterozygous for the h3 gene expressed a high level of resistance against homozygous avirulent and heterozygous larvae carrying the vh3 virulence allele. the h7h8 genes were highly effective in the homozygous condition, but displayed a reduced level of resistance i ... | 2001 | 11567588 |
| the occurrence of the hessian fly in north america before the revolution. | | 1884 | 17754563 |
| that hessian fly parasite. | | 1891 | 17781337 |
| analysis of transcripts and proteins expressed in the salivary glands of hessian fly (mayetiola destructor) larvae. | hessian fly (mayetiola destructor) larvae are thought to manipulate host growth and metabolism through salivary secretions. however, the transcriptome and proteome of hessian fly salivary glands have not been systematically analyzed. in this research, we analyzed expressed-sequence-tags (est) representing 6106 cdna clones randomly selected from four libraries made from dissected salivary glands. we also analyzed the protein composition of dissected salivary glands using one- and two-dimensional ... | 2008 | 17854824 |
| genetic variation among populations of the hessian fly mayetiola destructor (diptera: cecidomyiidae) in morocco and syria. | the rapd-pcr technique was used to study genetic variation within and among geographical populations of the hessian fly, mayetiola destructor (say), from morocco and syria, associated with the fly's ability to overcome resistance in three wheat cultivars containing h5, h13 and h22 resistance genes. variation was detected both for the level of susceptibility of the cultivars and rapd profiles of m. destructor populations. by the use of rapd-pcr, high genetic variability was detected among individ ... | 2000 | 10996865 |
| biotype composition of hessian fly (diptera: cecidomyiidae) populations from the southeastern, midwestern, and northwestern united states and virulence to resistance genes in wheat. | twenty-three hessian fly, mayetiola destructor (say), populations collected in the southeastern (alabama and mississippi), midwestern (indiana), and northwestern (idaho and washington) united states from 1995 to 1999 were evaluated for biotype composition based on response to hessian fly resistance genes h3, h5, h6, and h7h8 in wheat, triticum aestivum l. biotypes l and o, combined, made up at least 60% of all alabama populations. biotype l was predominant in the northern third of alabama and bi ... | 2000 | 10985049 |
| molecular genetic mapping of three x-linked avirulence genes, vh6, vh9 and vh13, in the hessian fly. | three x-linked avirulence genes, vh6, vh9, and vh13 in the hessian fly, mayetiola destructor, confer avirulence to hessian fly resistance genes h6, h9, and h13 in wheat. we used a combination of two- and three-point crosses to determine the order of these genes with respect to each other, the white eye mutation and three x-linked molecular markers, g15-1, 020, and 021, developed from genomic lambda clones, lambda g15-1, lambda 020, and lambda 021. the gene order was determined to be vh9-vh6-g15- ... | 1999 | 10584305 |
| genetic mapping of hessian fly avirulence gene vh6 using bulked segregant analysis. | the hessian fly, mayetiola destructor (say), an important insect pest of wheat, triticum aestivum l., has a gene-for-gene relationship with wheat: single genes in the insect condition avirulence to specific resistance genes in wheat. we report the discovery of the first molecular genetic marker that is tightly linked to a hessian fly avirulence gene. this dominant dna polymorphism (opg15-1) was identified using bulked segregant analysis and arbitrary primers in polymerase chain reactions. bulked ... | 1998 | 9809439 |
| molecular and cytological analysis of a mariner transposon from hessian fly. | degenerate pcr primers for conserved regions of the mariner transposase have been shown to amplify dna sequences from the hessian fly (mayetiola destructor). using one of these sequences as a hybridization probe, a clone from an m. destructor genomic library in phage lambda was recovered and sequenced. a transposable element, desmar 1, with perfect inverted terminal repeats and an open reading frame that encodes a mariner class transposase was found. when compared to mariner sequences in the gen ... | 1997 | 9048446 |
| a pcr assay for detection of a 2rl.2bs wheat-rye chromosome translocation. | a 2rl.2bs wheat-rye translocation, present in the wheat germplasm line hamlet, carries a gene for resistance to hessian fly biotype l, one of the most virulent biotypes presently encountered in wheat production environments. unlike several other wheat-rye chromosome translocations common in wheat breeding programs, 2rl lacks genes encoding storage proteins or other easily selected markers. oligonucleotide primers synthesized from published sequences derived from the r173 family of moderately rep ... | 1996 | 8675004 |
| mariner transposase-like sequences from the hessian fly, mayetiola destructor. | transposable genetic elements are assumed to be a feature of all eukaryotic genomes. they can serve as vectors in gene transfer systems and as mutagenic agents for isolation of genes. until recently their identification has been primarily limited to organisms subjected to extensive genetic or molecular study. the hessian fly, mayetiola destructor (say), is an agriculturally important pest of wheat, triticum aestivum l., in the united states and other parts of the world. we assessed the presence ... | 1995 | 7560872 |
| genetic characterization and molecular mapping of a hessian fly-resistance gene transferred from t. turgidum ssp. dicoccum to common wheat. | a gene (temporarily designated hdic) conferring resistance to the hessian fly (hf) [mayetiola destructor (say)] was previously identified from an accession of german cultivated emmer wheat [triticum turgidum ssp. dicoccum (schrank ex schübler) thell] pi 94641, and was transferred to the hf-resistant wheat germplasm ks99wgrc42. the inheritance of hdic resistance exhibited incomplete penetrance because phenotypes of some heterozygous progenies are fully resistant and the others are fully susceptib ... | 2005 | 16136351 |
| impact of tillage practices on hessian fly-susceptible and resistant spring wheat cultivars. | hessian fly, mayetiola destructor (say), is a residue-borne pest of spring wheat that can become important in reduced tillage production systems. the relative abundance of hessian fly was examined on spring wheat cultivars grown under conventional tillage (ct) and no-tillage (nt) practices in northern idaho from 2000 to 2002. six cultivars were tested: hessian fly-susceptible 'penawawa' and'westbred 936' and -resistant (h3 gene) 'wawawai', 'jefferson', 'hank', and 'westbred 926.' hessian fly egg ... | 2005 | 16022309 |
| characterization and expression analysis of a gene encoding a secreted lipase-like protein expressed in the salivary glands of the larval hessian fly, mayetiola destructor (say). | in a salivary gland transcriptomics study we identified a cdna with a full-length open reading frame for a gene (mdesl1) encoding a lipase-like protein expressed in the salivary glands of the larval hessian fly, mayetiola destructor (say). fluorescent in situ hybridization on salivary polytenes positioned mdesl1 on the long arm of autosome 1. blastp and conserved domain searches revealed the deduced amino acid sequence contained a lipase superfamily domain with similarity to lipases and phosphol ... | 2009 | 19026654 |
| hessian fly resistance gene h13 is mapped to a distal cluster of resistance genes in chromosome 6ds of wheat. | h13 is inherited as a major dominant resistance gene in wheat. it was previously mapped to chromosome 6dl and expresses a high level of antibiosis against hessian fly (hf) [mayetiola destructor (say)] larvae. the objective of this study was to identify tightly linked molecular markers for marker-assisted selection in wheat breeding and as a starting point toward the map-based cloning of h13. fifty-two chromosome 6d-specific microsatellite (simple sequence repeat) markers were tested for linkage ... | 2005 | 15942758 |
| h9, h10, and h11 compose a cluster of hessian fly-resistance genes in the distal gene-rich region of wheat chromosome 1as. | h9, h10, and h11 are major dominant resistance genes in wheat, expressing antibiosis against hessian fly [(hf) mayetiola destructor (say)] larvae. previously, h9 and h10 were assigned to chromosome 5a and h11 to 1a. the objectives of this study were to identify simple-sequence-repeat (ssr) markers for fine mapping of these genes and for marker-assisted selection in wheat breeding. contrary to previous results, h9 and h10 did not show linkage with ssr markers on chromosome 5a. instead, h9, h10, a ... | 2005 | 15803288 |
| cloning and characterization of chymotrypsin- and trypsin-like cdnas from the gut of the hessian fly [mayetiola destructor (say)]. | fifteen unique cdna clones encoding trypsin- or chymotrypsin-like proteins were cloned and characterized from a gut cdna library derived from hessian fly [mayetiola destructor (say)] larvae. based on sequence similarities, the cdnas were sorted into five gene groups, which were named mdp1 to mdp5. two of the gene groups, mdp1 and mdp2, encoded chymotrypsin-like proteins; the other three encoded putative trypsins. all deduced proteins have conserved his(87), asp(136), and ser(241) residues for th ... | 2005 | 15607652 |
| identification and mapping of h32, a new wheat gene conferring resistance to hessian fly. | h32 is a newly identified gene that confers resistance to the highly pervasive biotype l of the hessian fly [ mayetiola destructor (say)]. the gene was identified in a synthetic amphihexaploid wheat, w-7984, that was constructed from the durum 'altar 84' and aegilops tauschii. this synthetic wheat is one of the parents of the marker-rich itmi population, which consists of 150 recombinant inbred lines (rils) derived by single-seed descent from a cross with 'opata 85'. linkage analysis of the h32 ... | 2005 | 16160821 |
| genomic analysis of a 1 mb region near the telomere of hessian fly chromosome x2 and avirulence gene vh13. | to have an insight into the mayetiola destructor (hessian fly) genome, we performed an in silico comparative genomic analysis utilizing genetic mapping, genomic sequence and est sequence data along with data available from public databases. | 2006 | 16412254 |
| cytogenetics of the hessian fly: i. mitotic karyotype analysis and polytene chromosome correlations. | the somatic haploid chromosome set of the hessian fly, mayetiola destructor (say),consists of two autosomes and two sex chromosomes. female somatic cells have pairs of each of these chromosomes (2n = 8). male somatic cells have two pairs of autosomes and two monosomic sex chromosomes. c-banding revealed pericentromeric heterochromatin on one arm of each chromosome. mitotic chromosomes were karyotyped using relative lengths, centromeric positions, presence of secondary constrictions, and position ... | 1988 | 19554751 |
| lipid soluble pigments of wheat plants as related to hessian fly infestation. | | 1958 | 16655159 |
| genetic characterization and molecular mapping of hessian fly resistance genes derived from aegilops tauschii in synthetic wheat. | two synthetic hexaploid wheat lines (xaegilotriticum spp., 2n = 6x = 42, genomes aabbdd), sw8 and sw34, developed from the crosses of the durum wheat cultivar langdon (triticum turgidum l. var. durum, 2n = 4x = 28, genomes aabb) with two aegilops tauschii cosson accessions (2n = 2x = 14, genome dd), were determined to carry hessian fly [mayetiola destructor (say)] resistance genes derived from the ae. tauschii parents. sw8 was resistant to the hessian fly biotype great plains (gp) and strain vh1 ... | 2006 | 16775694 |
| cloning and characterization of cdnas encoding carboxypeptidase-like proteins from the gut of hessian fly larvae [mayetiola destructor (say)]. | transcriptomic analysis of the gut from hessian fly larvae [mayetiola destructor (say)] identified nine cdna clones that encode different carboxypeptidase-like proteins. sequence comparison revealed that five of the nine cdnas encoded very similar proteins with amino acid sequence identity over 96%. the other four cdnas encoded diversified proteins with amino acid sequence identity less than 60%. further sequence comparison with well characterized carboxypeptidases from other organisms revealed ... | 2006 | 16876709 |
| cloning and characterization of protease inhibitor-like cdnas from the hessian fly mayetiola destructor (say). | analysis of transcriptomes from the salivary glands and midgut of hessian fly larvae mayetiola destructor (say) identified a set of diverse cdnas that encode proteins with a relatively high percentage (over 10%) of cysteinyl residues. structural comparison of these putative proteins with known sequences in genbank revealed that the positions of the cysteinyl residues in the identified proteins were highly conserved within a family of proteinase inhibitors despite very little overall sequence sim ... | 2006 | 16907835 |
| gene-for-gene defense of wheat against the hessian fly lacks a classical oxidative burst. | genetic similarities between plant interactions with microbial pathogens and wheat interactions with hessian fly larvae prompted us to investigate defense and counterdefense mechanisms. plant oxidative burst, a rapid increase in the levels of active oxygen species (aos) within the initial 24 h of an interaction with pathogens, commonly is associated with defenses that are triggered by gene-for-gene recognition events similar to those involving wheat and hessian fly larvae. rnas encoded by hessia ... | 2006 | 16941906 |
| h22, a major resistance gene to the hessian fly (mayetiola destructor), is mapped to the distal region of wheat chromosome 1ds. | h22 is a major resistance gene conferring high-level of antibiosis to hessian fly [mayetiola destructor (say)] larvae. it was previously assigned to wheat chromosome 1d through monosomic analysis (raupp et al. in j hered 84:142-145, 1993). the objective of this study was to identify molecular markers that can be used for marker-assisted selection for wheat breeding, and to further map this gene toward map-based cloning. forty-five simple sequence repeat (ssr) and sequence-tagged site (sts) marke ... | 2006 | 16972061 |
| does r gene resistance allow wheat to prevent plant growth effects associated with hessian fly (diptera: cecidomyiidae) attack? | resistance genes (r genes) are an important part of the plant's immune system. among insects, the hessian fly, mayetiola destructor (say) (diptera: cecidomyiidae), larva is the target of the greatest number of characterized r genes (h1-h32). the biochemical/molecular mechanism of r gene resistance to hessian fly is not well understood. in the absence of an effective r gene, larvae caused extensive growth deficits (> 30 cm) in wheat seedlings. in the presence of one of three effective r genes, h6 ... | 2006 | 17066821 |
| expression patterns of antibacterial genes in the hessian fly. | we report on the transcriptional patterns of three antibacterial genes, a defensin (mdesdef-1), a diptericin (mdesdip-1) and a lysozyme (mdeslys-1), during development in hessian fly, mayetiola destructor. quantitative analysis by real-time pcr of mrna levels in different tissues revealed a predominance of the transcripts for all three genes in the midgut, while analysis during development revealed greatest abundance in mrna during the 3rd-instar. an evaluation of the midgut lumen revealed the p ... | 2006 | 17070830 |
| differential accumulation of phytohormones in wheat seedlings attacked by avirulent and virulent hessian fly (diptera: cecidomyiidae) larvae. | we analyzed the accumulation of six phytohormones and phytohormone-related compounds in a wheat, triticum aestivium l., genotype, 'molly', after attacks by avirulent and virulent hessian fly, mayetiola destructor (say) (diptera: cecidomyiidae), larvae, respectively, and we examined the expression of genes in the jasmonic acid (ja) pathway by northern blot analysis. compared with uninfested plants, attacks by avirulent larvae resulted in increased accumulation of salicylic acid (sa) by 11.3- and ... | 2010 | 20214384 |
| cdna cloning and transcriptional expression of a peritrophin-like gene in the hessian fly, mayetiola destructor [say]. | one of the well-studied components of the insect gut is the peritrophic matrix (pm). this semipermeable structure primarily functions in digestion, and protection against invasive microorganisms and mechanical damage. we report the cdna cloning and transcription profiles of a peritrophin-a like gene (designated mdesperi-a1) in the hessian fly mayetiola destructor. the predicted amino acid sequence of mdesperi-a1 revealed a putative secretion signal peptide at its amino terminus, similarity to pe ... | 2007 | 17167751 |
| antioxidant defense response in a galling insect. | herbivorous insect species are constantly challenged with reactive oxygen species (ros) generated from endogenous and exogenous sources. ros produced within insects because of stress and prooxidant allelochemicals produced by host plants in response to herbivory require a complex mode of antioxidant defense during insect/plant interactions. some insect herbivores have a midgut-based defense against the suite of ros encountered. because the hessian fly (mayetiola destructor) is the major insect p ... | 2007 | 17261812 |
| tissue and developmental expression of a gene from hessian fly encoding an abc-active-transporter protein: implications for malpighian tubule function during interactions with wheat. | we report on the transcriptional patterns of a putative white (w) gene encoding an abc-active-transporter protein during development in hessian fly, mayetiola destructor. the deduced amino acid sequence for the hessian fly white showed 74-77% similarities to white/atp-binding-cassette proteins and 52-57% similarities to scarlet/atp-binding-cassette proteins from other dipterans. conserved atp-binding motifs and transmembrane alpha-helix segments were identified in the hessian fly white protein f ... | 2008 | 17980386 |
| hessian fly (mayetiola destructor) attack causes a dramatic shift in carbon and nitrogen metabolism in wheat. | carbon and nitrogen (c/n) metabolism and allocation within the plant have important implications for plant-parasite interactions. many plant parasites manipulate the host by inducing c/n changes that benefit their own survival and growth. plant resistance can prevent this parasite manipulation. we used the wheat-hessian fly (mayetiola destructor) system to analyze c/n changes in plants during compatible and incompatible interactions. the hessian fly is an insect but shares many features with pla ... | 2008 | 18052884 |
| gene expression of different wheat genotypes during attack by virulent and avirulent hessian fly (mayetiola destructor) larvae. | wheat and its relatives possess a number of resistance (r) genes specific for the hessian fly (hf) [mayetiola destructor (say)]. hf populations overcome r gene resistance by evolving virulence. virulent hf larvae manipulate the plant to produce a nutritionally enhanced feeding tissue and, probably, also suppress plant defense responses. using two wheat r genes, h9 and h13, and three hf strains (biotypes) differing in virulence for h9 and h13, we conducted a genome-wide transcriptional analysis o ... | 2007 | 18058177 |
| molecular characterization and responsive expression of a defender against apoptotic cell death homologue from the hessian fly, mayetiola destructor. | apoptosis or programmed cell death is an active process occurring in multicellular organisms to maintain growth and development. the hessian fly, mayetiola destructor, is rapidly emerging as a model insect species to study insect-plant interactions and to decipher some exceptional physiological phenomena. in this study, we report the characterization and expression profiles of a putative hessian fly defender against apoptotic cell death (dad1) homologue designated mdesdad1. the deduced amino aci ... | 2008 | 18249019 |
| structural and expressional divergence of genes encoding o-methyltransferase in wheat. | enzymatic methylation, which is catalyzed by the large number of o-methyltransferases (omts), is one of the important reactions in the flow of primary and (or) secondary metabolism. in a previous study, the gene taomt1 was induced by hessian fly infestation of a wheat-rye translocation line. in this study we considered other wheat omt genes - taomt3, taomt4, and taomt5 - using a bioinformatics approach and examined the taomt genes for their genomic organization, tissue-specific expression, respo ... | 2008 | 18923536 |
| identification of sex pheromone components of the hessian fly, mayetiola destructor. | coupled gas chromatographic (gc)-electroantennographic detection (ead) analyses of ovipositor extract of calling hessian fly, mayetiola destructor, females revealed that seven compounds elicited responses from male antennae. four of the compounds-(2s)-tridec-2-yl acetate, (2s,10z)-10-tridecen-2-yl acetate, (2s,10e)-10-tridecen-2-yl acetate, and (2s,10e)-10-tridecen-2-ol-were identified previously in female extracts. two new ead-active compounds, (2s,8z,10e)-8,10-tridecadien-2-yl acetate and (2s, ... | 2009 | 19067080 |
| saturation and comparative mapping of the genomic region harboring hessian fly resistance gene h26 in wheat. | resistance gene h26, derived from aegilops tauschii coss., is one of the most effective r genes against the hessian fly [mayetiola destructor (say)], an important pest of wheat (triticum aestivum l.). using a limited number of pcr-based molecular markers a previous study mapped h26 to the wheat chromosomal deletion bin 3dl3-0.81-1.00. the objectives of this study were to saturate the chromosomal region harboring h26 with newly developed pcr-based markers and to investigate the collinearity of th ... | 2009 | 19322558 |
| unusual conservation among genes encoding small secreted salivary gland proteins from a gall midge. | in most protein-coding genes, greater sequence variation is observed in noncoding regions (introns and untranslated regions) than in coding regions due to selective constraints. during characterization of genes and transcripts encoding small secreted salivary gland proteins (sssgps) from the hessian fly, we found exactly the opposite pattern of conservation in several families of genes: the non-coding regions were highly conserved, but the coding regions were highly variable. | 2010 | 20920202 |
| hessian fly infestation in tennessee and kentucky. | | 1945 | 21015637 |
| virulence analysis of hessian fly populations from texas, oklahoma, and kansas. | in recent years, the number of wheat, triticum aestivum l., fields heavily infested by hessian fly, mayetiola destructor (say), has increased in the great plains of the united states. historically, resistance genes in wheat have been the most efficient means of controlling this insect pest. to determine which resistance genes are still effective in this area, virulence of six hessian fly populations from texas, oklahoma, and kansas was determined, using the resistance genes h3, h4, h5, h6, h7h8, ... | 2009 | 19449660 |
| a super-family of genes coding for secreted salivary gland proteins from the hessian fly, mayetiola destructor. | we have previously characterized a gene coding for the secreted-salivary-gland-protein 11a1 (ssgp-11a1) from the hessian fly, mayetiola destructor (say) (diptera cecidomyiidae). here we report the cloning and characterization of three new genes coding for proteins designated ssgp-11b1, ssgp-11c1, and ssgp-11c2, and their relationship with the ssgp-11a1-encoding gene. based on their structural conservation, similar regulation, and clustered genomic organization, we conclude that the four genes re ... | 2006 | 19537963 |
| development of polymorphic microsatellite markers in hessian fly, mayetiola destructor (say). | a microsatellite library was prepared from size-selected genomic dna of hessian fly (mayetiola destructor). approximately 81% of recovered clones hybridized with microsatellite motif-specific probes. subsequently, 2350 clones were sequenced. sixty-two individual flies from laboratory strains were used to test for reliability and polymorphism in 50 of the microsatellites by gel electrophoresis; 18 were further tested with capillary electrophoresis. of these, 17 behaved as a polymorphic single loc ... | 2008 | 21586046 |
| induced epidermal permeability modulates resistance and susceptibility of wheat seedlings to herbivory by hessian fly larvae. | salivary secretions of neonate hessian fly larvae initiate a two-way exchange of molecules with their wheat host. changes in properties of the leaf surface allow larval effectors to enter the plant where they trigger plant processes leading to resistance and delivery of defence molecules, or susceptibility and delivery of nutrients. to increase understanding of the host plant's response, the timing and characteristics of the induced epidermal permeability were investigated. resistant plant perme ... | 2011 | 21659664 |
| development and functional assessment of est-derived 2rl-specific markers for 2bs.2rl translocations. | ests-derived markers are useful for comparative genomic analysis and can also serve as phenotype-linked functional markers. here, we report the development of est-derived 2rl-specific markers and the evaluation of the possibility of functional assessment of markers tagging 2rl, which carries hessian fly resistance genes (loci). to identify transcripts specific to 2rl, unigene sequences in combination with wheat progenitor genomes were used. total 275 contigs mapped to the long arms of homoeologo ... | 2009 | 19543880 |
| a bac-based physical map of the hessian fly genome anchored to polytene chromosomes. | the hessian fly (mayetiola destructor) is an important insect pest of wheat. it has tractable genetics, polytene chromosomes, and a small genome (158 mb). investigation of the hessian fly presents excellent opportunities to study plant-insect interactions and the molecular mechanisms underlying genome imprinting and chromosome elimination. a physical map is needed to improve the ability to perform both positional cloning and comparative genomic analyses with the fully sequenced genomes of other ... | 2009 | 19573234 |
| localization and characterization of 170 bac-derived clones and mapping of 94 microsatellites in the hessian fly. | ninety-four microsatellites from enriched genomic libraries of hessian fly (hf, mayetiola destructor [say]) were localized to 170 cognate clones in an hf bacterial artificial chromosome (bac) library. these microsatellite-positive bac clones were physically mapped to polytene chromosomes by fluorescent in situ hybridization. the mapped microsatellite loci can be used to study the genetic diversity and population structure of hf. | 2009 | 19592640 |
| hessian fly-associated bacteria: transmission, essentiality, and composition. | plant-feeding insects have been recently found to use microbes to manipulate host plant physiology and morphology. gall midges are one of the largest groups of insects that manipulate host plants extensively. hessian fly (hf, mayetiola destructor) is an important pest of wheat and a model system for studying gall midges. to examine the role of bacteria in parasitism, a systematic analysis of bacteria associated with hf was performed for the first time. diverse bacteria were found in different de ... | 2011 | 21858016 |
| Effects of antinutrient proteins on Hessian fly (Diptera: Cecidomyiidae) larvae. | One strategy to enhance the durability of Hessian fly resistance (R) genes in wheat is to combine them with transgenes for resistance. To identify potential transgenes for resistance a protocol for rapidly screening the proteins they encode for efficacy toward resistance is required. However, the Hessian fly is an obligate parasite of wheat and related grasses. Consequently, no protocol for in vitro delivery of antinutrient or toxic proteins to feeding larvae is available. We report here the dev ... | 2012 | 21983260 |
| changes in phytohormones and fatty acids in wheat and rice seedlings in response to hessian fly (diptera: cecidomyiidae) infestation. | phytohormones and fatty acids (fas) play important roles in plant resistance to insects and pathogens. in this study, we investigated the similarities and differences in the accumulations of phytohormones and fas in the resistant wheat (triticum aestivum l.) 'molly' and the nonhost rice (oryza sativa l.) 'niponbare' in responses to hessian fly, mayetiola destructor (say) (diptera: cecidomyiidae), larval attacks. using chemical ionization-gas-chromatography/mass spectrometry, we analyzed the conc ... | 2011 | 21882708 |
| hessian fly (diptera: cecidomyiidae) interactions with barley, rice, and wheat seedlings. | a choice test revealed that hessian fly, mayetiola destructor (say) (diptera: cecidomyiidae), adults deposited approximately 3 times more eggs on wheat (triticum spp.), seedlings than on barley (hordeum spp.) or rice, oryza sativa l., seedlings. on a barley seedling, 49.4% of eggs were deposited on either the abaxial leaf surface or the coleoptile and first leaf sheath (c&fls), where newly hatched larvae die due to their inability to migrate into the interspace between leaf sheaths. in compariso ... | 2009 | 19736782 |
| transcript profiles of two wheat lipid transfer protein-encoding genes are altered during attack by hessian fly larvae. | a sequence encoding a putative type-1 lipid transfer protein from wheat (triticum aestivum l. em thell) was identified through 'genecalling', an mrna profiling technology. the mrna for the hfr-ltp (hessian fly-responsive lipid transfer protein) gene decreased in abundance (196-fold) in susceptible wheat plants over the first eight days of attack by virulent hessian fly larvae (mayetiola destructor say). hfr-ltp encodes a putative protein containing eight cysteine residues that are conserved amon ... | 2010 | 19914842 |
| reactive oxygen species are involved in plant defense against a gall midge. | reactive oxygen species (ros) play a major role in plant defense against pathogens, but evidence for their role in defense against insects is still preliminary and inconsistent. in this study, we examined the potential role of ros in defense of wheat (triticum aestivum) and rice (oryza sativa) against hessian fly (mayetiola destructor) larvae. rapid and prolonged accumulation of hydrogen peroxide (h(2)o(2)) was detected in wheat plants at the attack site during incompatible interactions. increas ... | 2010 | 19965963 |
| a neo-sex chromosome that drives postzygotic sex determination in the hessian fly (mayetiola destructor). | two nonoverlapping autosomal inversions defined unusual neo-sex chromosomes in the hessian fly (mayetiola destructor). like other neo-sex chromosomes, these were normally heterozygous, present only in one sex, and suppressed recombination around a sex-determining master switch. their unusual properties originated from the anomalous hessian fly sex determination system in which postzygotic chromosome elimination is used to establish the sex-determining karyotypes. this system permitted the evolut ... | 2010 | 20026681 |
| sex- and tissue-specific profiles of chemosensory gene expression in a herbivorous gall-inducing fly (diptera: cecidomyiidae). | the chemical senses of insects mediate behaviors that are closely linked to survival and reproduction. the order diptera contains two model organisms, the vinegar fly drosophila melanogaster and the mosquito anopheles gambiae, whose chemosensory genes have been extensively studied. representing a third dipteran lineage with an interesting phylogenetic position, and being ecologically distinct by feeding on plants, the hessian fly (mayetiola destructor say, diptera: cecidomyiidae) genome sequence ... | 2014 | 24948464 |
| ultrastructural changes in the midguts of hessian fly larvae feeding on resistant wheat. | the focus of the present study was to compare ultrastructure in the midguts of larvae of the hessian fly, mayetiola destructor (say), under different feeding regimens. larvae were either fed on hessian fly-resistant or -susceptible wheat, and each group was compared to starved larvae. within 3h of larval hessian fly feeding on resistant wheat, midgut microvilli were disrupted, and after 6h, microvilli were absent. the disruption in microvilli in larvae feeding on resistant wheat were similar to ... | 2010 | 20116382 |
| h-gene-mediated resistance to hessian fly exhibits features of penetration resistance to fungi. | features shared by host-specific phytophagous insects and biotrophic plant pathogens include gene-for-gene interactions and the ability to induce susceptibility in plants. the hessian fly shows both. to protect against hessian fly, grasses have h genes. avirulent larvae die on h-gene-containing resistant plants but the cause of death is not known. imaging techniques were used to examine epidermal cells at larval attack sites, comparing four resistant wheat genotypes (h6, h9, h13, and h26) to a s ... | 2010 | 20128702 |
| aphid resistance in wheat varieties. | as an environmentally compatible alternative to the use of conventional insecticides to control cereal aphids, we have investigated the possibility to exploit natural resistance to insect pests in wheat varieties. we have tested a wide range of hexaploid (triticum aestivum), tetraploid (t. durum) and diploid (t. boeoticum and t. monococcum) wheat lines for resistance to the bird cherry oat aphid (rhopalosiphum padi). lines tested included russian wheat aphid (diuraphis noxia), greenbug (schizaph ... | 2009 | 20218532 |
| tissue and life stage specificity of glutathione s-transferase expression in the hessian fly, mayetiola destructor: implications for resistance to host allelochemicals. | two new delta and sigma glutathione s-transferases (gsts) in the hessian fly, mayetiola destructor (diptera: cecidomyiidae), were characterized and transcription profiles described. the deduced amino acid sequences for the two m. destructor delta gsts (mdesgst-1 and mdesgst-3) showed high similarity with other insect delta gsts including the conserved catalytic serine residue. the deduced amino acid sequence for the m. destructor sigma gst (mdesgst-2) showed high similarity with other insect sig ... | 2007 | 20307234 |
| wheat mds-1 encodes a heat-shock protein and governs susceptibility towards the hessian fly gall midge. | gall midges induce formation of host nutritive cells and alter plant metabolism to utilize host resources. here we show that the gene mayetiola destructor susceptibility-1 on wheat chromosome 3as encodes a small heat-shock protein and is a major susceptibility gene for infestation of wheat by the gall midge m. destructor, commonly known as the hessian fly. transcription of mayetiola destructor susceptibility-1 and its homoeologs increases upon insect infestation. ectopic expression of mayetiola ... | 2013 | 23792912 |
| evolution of the mitochondrial genomes of gall midges (diptera: cecidomyiidae): rearrangement and severe truncation of trna genes. | we determined the complete mitochondrial genome sequences of two species of gall midges (diptera: cecidomyiidae), as well as partial sequence from a third cecidomyiid and a species from a related family, the sciaridae. the sciarid sequence has a number of rearrangements of trna genes, relative to other dipterans, but is otherwise unremarkable. in contrast, the cecidomyiid genomes possess a number of very unusual features. first, the two complete sequences are very small compared with other dipte ... | 2009 | 20333197 |
| the gut transcriptome of a gall midge, mayetiola destructor. | the hessian fly, mayetiola destructor, is a serious pest of wheat and an experimental organism for the study of gall midge-plant interactions. in addition to food digestion and detoxification, the gut of hessian fly larvae is also an important interface for insect-host interactions. analysis of the genes expressed in the hessian fly larval gut will enhance our understanding of the overall gut physiology and may also lead to the identification of critical molecules for hessian fly-host plant inte ... | 2010 | 20346948 |
| functional characterization of hfr1, a high-mannose n-glycan-specific wheat lectin induced by hessian fly larvae. | we previously cloned and characterized a novel jacalin-like lectin gene from wheat (triticum aestivum) plants that responds to infestation by hessian fly (mayetiola destructor) larvae, a major dipteran pest of this crop. the infested resistant plants accumulated higher levels of hfr-1 (for hessian fly-responsive gene 1) transcripts compared with uninfested or susceptible plants. here, we characterize the soluble and active recombinant his(6)-hfr1 protein isolated from escherichia coli. functiona ... | 2008 | 18467454 |
| targeted mapping of rye chromatin in wheat by representational difference analysis. | a targeted mapping strategy using representational difference analysis (rda) was employed to isolate new restriction fragment length polymorphism probes for the long arm of chromosome 6 in rye (6rl), which carries a gene for resistance to hessian fly larvae. fragments from the 6rl arm were specifically isolated using a 'chinese spring' (cs) wheat - rye ditelosomic addition line (csdt6rl) as tester, and cs and (or) cs4r as the driver for the genomic subtraction. three rda experiments were perform ... | 1995 | 18470182 |
| differential responses of wheat inhibitor-like genes to hessian fly, mayetiola destructor, attacks during compatible and incompatible interactions. | four groups of inhibitor-like genes that encode proteins with diverse structures were identified from wheat. the majority of these genes were upregulated by avirulent hessian fly, mayetiola destructor (diptera: cecidomyiidae), larvae during incompatible interactions, and were downregulated by virulent larvae during compatible interactions. the upregulation during incompatible interactions and downregulation during compatible interactions resulted in four- to 30-fold differences between the expre ... | 2008 | 18584256 |
| virulent hessian fly larvae manipulate the free amino acid content of host wheat plants. | gall-forming insects induce host plants to form specialized structures (galls) that provide immature life stages of the insect access to host plant nutrients and protection from natural enemies. feeding by larvae of the hessian fly (mayetiola destructor say) causes susceptible host wheat plants to produce a gall-like nutritive tissue that supports larval growth and development. to determine if changes in host plant free amino acid levels are associated with virulent biotype l hessian fly larval ... | 2008 | 18841417 |
| hfr-2, a wheat cytolytic toxin-like gene, is up-regulated by virulent hessian fly larval feedingdouble dagger. | summary both yield and grain-quality are dramatically decreased when susceptible wheat (triticum aestivum) plants are infested by hessian fly (mayetiola destructor) larvae. examination of the changes in wheat gene expression during infestation by virulent hessian fly larvae has identified the up-regulation of a gene, hessian fly responsive-2 (hfr-2), which contains regions similar to genes encoding seed-specific agglutinin proteins from amaranthus. hfr-2, however, did not accumulate in developin ... | 2005 | 20565667 |
| assessment of structural variation and molecular mapping of insertion sites of desmar-like elements in the hessian fly genome. | the hessian fly (mayetiola destructor) is an agriculturally important pest of wheat. a mariner element (desmar1) has been previously identified in the hessian fly genome. using desmar1 as a probe, we isolated individual copies of desmar-like elements from the hessian fly genome cloned in bacterial artificial chromosomes (bacs) and studied their structural variability and flanking dna sequences. the partial desmar-like copies are relatively more abundant (∼64%) than full length copies (∼36%) in t ... | 2010 | 20636348 |
| comparative analysis of genetic background in eight near-isogenic wheat lines with different h genes conferring resistance to hessian fly. | near-isogenic lines (nils) are useful for plant genetic and genomic studies. however, the strength of conclusions from such studies depends on the similarity of the nils' genetic backgrounds. in this study, we investigated the genetic similarity for a set of nils developed in the 1990s to study gene-for-gene interactions between wheat (triticum aestivum l.) and the hessian fly (mayetiola destructor (say)), an important pest of wheat. each of the eight nils carries a single h resistance gene and ... | 2011 | 21217808 |
| virulence in hessian fly (diptera: cecidomyiidae) field collections from the southeastern united states to 21 resistance genes in wheat. | genetic resistance in wheat, triticum aestivum l., is the most efficacious method for control of hessian fly, mayetiola destructor (say) (diptera: cecidomyiidae). however, because of the appearance of new genotypes (biotypes) in response to deployment of resistance, field collections of hessian fly need to be evaluated on a regular basis to provide breeders and producers information on the efficacy of resistance (r) genes with respect to the genotype composition of hessian fly in regional areas. ... | 2010 | 21309248 |
| serine proteases-like genes in the asian rice gall midge show differential expression in compatible and incompatible interactions with rice. | the asian rice gall midge, orseolia oryzae (wood-mason), is a serious pest of rice. investigations into the gall midge-rice interaction will unveil the underlying molecular mechanisms which, in turn, can be used as a tool to assist in developing suitable integrated pest management strategies. the insect gut is known to be involved in various physiological and biological processes including digestion, detoxification and interaction with the host. we have cloned and identified two genes, ooproti a ... | 2011 | 21686154 |
| approved quarantine treatment for hessian fly (diptera: cecidomyiidae) in large-size hay bales and hessian fly and cereal leaf beetle (coleoptera: chrysomelidae) control by bale compression. | a quarantine treatment using bale compression (32 kg/cm2 pressure) and phosphine fumigation (61 g/28.3 m3 aluminum phosphide for 7 d at 20 degrees c) was approved to control hessian fly, mayetiola destructor (say), in large-size, polypropylene fabric-wrapped bales exported from the western states to japan. no hessian fly puparia (45,366) survived to the adult stage in infested wheat, triticum aestivum l., seedlings exposed to the treatment in a large-scale commercial test. daily temperatures (me ... | 2011 | 21735895 |
| a reproductive fitness cost associated with hessian fly (diptera: cecidomyiidae) virulence to wheat's h gene-mediated resistance. | we studied whether adaptation of the hessian fly, mayetiola destructor (say) (diptera: cecidomyiidae), to plant resistance incurs fitness costs. in this gene-for-gene interaction, adaptation to a single h resistance gene occurs via loss of a single effector encoded by an avirulence gene. by losing the effector, the adapted larva now survives on the h gene plant, presumably because it evades the plant's h gene-mediated surveillance system. the problem is the hessian fly larva needs its effectors ... | 2011 | 21735929 |
| No fitness cost for wheat's H gene-mediated resistance to Hessian fly (Diptera: Cecidomyiidae). | Resistance (R) genes have a proven record for protecting plants against biotic stress. A problem is parasite adaptation via Avirulence (Avr) mutations, which allows the parasite to colonize the R gene plant. Scientists hope to make R genes more durable by stacking them in a single cultivar. However, stacking assumes that R gene-mediated resistance has no fitness cost for the plant. We tested this assumption for wheat's resistance to Hessian fly, Mayetiola destructor (Say) (Diptera: Cecidomyiidae ... | 2011 | 21882709 |
| population structure and spatial influence of agricultural variables on hessian fly populations in the southeastern united states. | population structure dictates the evolution of each population, and thus, the species as a whole. incorporating spatial variables with population genetic statistics allows for greater discovery beyond traditional population genetics alone and can inform management decisions. the understanding of population structure in hessian fly, mayetiola destructor (say), a pest of wheat, has been limited in the past. we scored 14 microsatellite loci from 12 collections of hessian fly in the southeastern uni ... | 2011 | 22251741 |
| using sex pheromone trapping to explore threats to wheat from hessian fly (diptera: cecidomyiidae) in the upper great plains. | before embarking on the 5-10 yr effort it can take to transfer plant resistance (r) genes to adapted crop cultivars, a question must be asked: is the pest a sufficient threat to warrant this effort? we used the recently discovered female-produced sex pheromone of the hessian fly, mayetiola destructor (say) (diptera: cecidomyiidae),to explore this question for populations in the upper great plains. methods for pheromone trapping were established and trapping data were used to explore geographic d ... | 2012 | 23356063 |
| hessian fly larval feeding triggers enhanced polyamine levels in susceptible but not resistant wheat. | hessian fly (mayetiola destructor), a member of the gall midge family, is one of the most destructive pests of wheat (triticum aestivum) worldwide. probing of wheat plants by the larvae results in either an incompatible (avirulent larvae, resistant plant) or a compatible (virulent larvae, susceptible plant) interaction. virulent larvae induce the formation of a nutritive tissue, resembling the inside surface of a gall, in susceptible wheat. these nutritive cells are a rich source of proteins and ... | 2015 | 25592131 |
| massive shift in gene expression during transitions between developmental stages of the gall midge, mayetiola destructor. | mayetiola destructor is a destructive pest of wheat and has six developmental stages. molecular mechanisms controlling the transition between developmental stages remain unknown. here we analyzed genes that were expressed differentially between two successive developmental stages, including larvae at 1, 3, 5, and 7 days, pupae, and adults. a total of 17,344 genes were expressed during one or more of these studied stages. among the expressed genes, 38-68% were differently expressed between two su ... | 2016 | 27224654 |
| feeding on resistant rice leads to enhanced expression of defender against apoptotic cell death (oodad1) in the asian rice gall midge. | the asian rice gall midge (orseolia oryzae) is a destructive insect pest of rice. gall midge infestation in rice triggers either compatible or incompatible interactions leading to survival or mortality of the feeding maggots, respectively. in incompatible interactions, generation of plant allelochemicals/defense molecules and/or inability of the maggots to continue feeding on the host initiate(s) apoptosis within the maggots. unraveling these molecular events, triggered within the maggots as a r ... | 2015 | 26428861 |
| a sex pheromone receptor in the hessian fly mayetiola destructor (diptera, cecidomyiidae). | the hessian fly, mayetiola destructor say (diptera, cecidomyiidae), is a pest of wheat and belongs to a group of gall-inducing herbivores. this species has a unique life history and several ecological features that differentiate it from other diptera such as drosophila melanogaster and blood-feeding mosquitoes. these features include a short, non-feeding adult life stage (1-2 days) and the use of a long-range sex pheromone produced and released by adult females. sex pheromones are detected by me ... | 2016 | 27656130 |
| insecticidal activity of wheat hessian fly responsive proteins hfr-1 and hfr-3 towards a non-target wheat pest, cereal aphid (sitobion avenae f.). | the interaction between hessian fly (mayetiola destructor) and wheat (triticum aestivum) involves a gene-for-gene resistance mechanism. the incompatible interaction leading to resistance involves up-regulation of several hfr (hessian fly responsive) genes encoding proteins with potential insecticidal activity. the encoded proteins hfr-1, hfr-2 and hfr-3 all possess lectin-like domains. hfr-1 and hfr-3 were produced as recombinant proteins using escherichia coli and pichia pastoris, respectively ... | 2012 | 22609418 |
| identification and expression profile analysis of putative odorant-binding proteins in sitodiplosis mosellana (gehin) (diptera: cecidomyiidae). | odorant binding proteins (obps) contribute to the remarkable sensitivity of the insect's olfactory system and play important roles in the olfactory recognition. the orange blossom midge, sitodiplosis mosellana is a cereal specialist, and utilizes pheromone and host odorant as a cue for its mating and oviposition. however, obp genes have not been largely identified in s. mosellana. based on the sequenced transcriptome database, twenty-six obp genes were identified in s. mosellana for the first ti ... | 2014 | 24440700 |