Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
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| value of neonicotinoid seed treatments to us soybean farmers. | the benefits of neonicotinoid seed treatment to soybean farmers have received increased scrutiny. rather than use data from small-plot experiments, this research uses survey data from 500 us farmers to estimate the benefit of neonicotinoid seed treatments to them. as seed treatment users, farmers are familiar with their benefits in the field and have economic incentives to only use them if they provide value. | 2017 | 27577180 |
| establishment of in vitro soybean aphids, aphis glycines (hemiptera: aphididae): a tool to facilitate studies of aphid symbionts, plant-insect interactions and insecticide efficacy. | studies on plant-insect interactions of the soybean aphid, aphis glycines (matsumura), can be influenced by environmental fluctuations, status of the host plant and variability in microbial populations. maintenance of aphids on in vitro-grown plants minimizes environmental fluctuations, provides uniform host materials and permits the selective elimination of aphid-associated microbes for more standardized controls in aphid research. | 2017 | 27680689 |
| evaluation of aphis glycines as an alternative host for supporting aphelinus albipodus against myzus persicae on capsicum annuum cv. ox horn and hejiao 13. | bank plant systems provide effective biological control for pests infesting commercially important crops. aphids cause physical damage to crops by feeding on the leaves, as well as transmitting damaging viral diseases. to develop a bank plant system to control aphids that damage vegetable crops, we initially reared the parasitoid aphelinus albipodus (hayat and fatima) on the soybean aphid, aphis glycines (matsumura) reared on the soybean plant, glycine max (l.) that was elected as the alternate ... | 2017 | 27817154 |
| overexpression of nictaba-like lectin genes from glycine max confers tolerance toward pseudomonas syringae infection, aphid infestation and salt stress in transgenic arabidopsis plants. | plants have evolved a sophisticated immune system that allows them to recognize invading pathogens by specialized receptors. carbohydrate-binding proteins or lectins are part of this immune system and especially the lectins that reside in the nucleocytoplasmic compartment are known to be implicated in biotic and abiotic stress responses. the class of nictaba-like lectins (nll) groups all proteins with homology to the tobacco (nicotiana tabacum) lectin, known as a stress-inducible lectin. here we ... | 2016 | 27826309 |
| beyond focal pests: impact of a neonicotinoid seed treatment and resistant soybean lines on a non-target arthropod. | integrated pest management (ipm) tactics may effectively control focal pests, but it is also important to test the compatibility of different tactics, and consider non-target organisms. we investigated the effects of a neonicotinoid seed treatment and rag resistance genes used for soybean aphid (aphis glycines matsumura) control on reproduction of a non-target herbivore (twospotted spider mite, tetranychus urticae koch) in short-term greenhouse experiments. we also examined interactions between ... | 2016 | 27845714 |
| from pest data to abundance-based risk maps combining eco-physiological knowledge, weather, and habitat variability. | noxious species, i.e., crop pest or invasive alien species, are major threats to both natural and managed ecosystems. invasive pests are of special importance, and knowledge about their distribution and abundance is fundamental to minimize economic losses and prioritize management activities. occurrence models are a common tool used to identify suitable zones and map priority areas (i.e., risk maps) for noxious species management, although they provide a simplified description of species dynamic ... | 2017 | 27859850 |
| aphis glycines virus 2, a novel insect virus with a unique genome structure. | the invasive soybean aphid, aphis glycines, is a major pest in soybeans, resulting in substantial economic loss. we analyzed the a. glycines transcriptome to identify sequences derived from viruses of a. glycines. we identified sequences derived from a novel virus named aphis glycines virus 2 (apglv2). the assembled virus genome sequence was confirmed by reverse transcription polymerase chain reaction (rt-pcr) and sanger sequencing, conserved domains were characterized, and distribution, and tra ... | 2016 | 27869772 |
| explicit modeling of abiotic and landscape factors reveals precipitation and forests associated with aphid abundance. | increases in natural or noncrop habitat surrounding agricultural fields have been shown to be correlated with declines in insect crop pests. however, these patterns are highly variable across studies suggesting other important factors, such as abiotic drivers, which are rarely included in landscape models, may also contribute to variability in insect population abundance. the objective of this study was to explicitly account for the contribution of temperature and precipitation, in addition to l ... | 2016 | 27875008 |
| the effect of temperature and host plant resistance on population growth of the soybean aphid biotype 1 (hemiptera: aphididae). | a laboratory experiment was conducted to evaluate direct and indirect effects of temperature on demographic traits and population growth of biotype 1 of the soybean aphid, aphis glycines matsumura. our objectives were to better understand how temperature influences the expression of host plant resistance, quantify the individual and interactive effects of plant resistance and temperature on soybean aphid population growth, and generate thermal constants for predicting temperature-dependent devel ... | 2017 | 28025225 |
| whole genome sequence of the soybean aphid, aphis glycines. | aphids are emerging as model organisms for both basic and applied research. of the 5,000 estimated species, only three aphids have published whole genome sequences: the pea aphid acyrthosiphon pisum, the russian wheat aphid, diuraphis noxia, and the green peach aphid, myzus persicae. we present the whole genome sequence of a fourth aphid, the soybean aphid (aphis glycines), which is an extreme specialist and an important invasive pest of soybean (glycine max). the availability of genomic resourc ... | 2017 | 28119199 |
| efficacy of rna interference knockdown using aerosolized short interfering rnas bound to nanoparticles in three diverse aphid species. | rna interference (rnai) has emerged as a promising method for validating gene function; however, its utility in nonmodel insects has proven problematic, with delivery methods being one of the main obstacles. this study investigates a novel method of rnai delivery in aphids, the aerosolization of short interfering rna (sirna)-nanoparticle complexes. by using nanoparticles as a sirna carrier, the likelihood of cellular uptake is increased, when compared to methods previously used in insects. to de ... | 2017 | 28314050 |
| spatial patterns and sequential sampling plans for predators of aphis glycines (hemiptera: aphididae) in minnesota soybean. | the soybean aphid, aphis glycines matsumura, is an economically important soybean pest. many studies have demonstrated that predatory insects are important in suppressing a. glycines population growth. however, to improve the utilization of predators in a. glycines management, sampling plans need to be developed and validated for predators. aphid predators were sampled in soybean fields near rosemount, minnesota, from 2006-2007 and 2013-2015 with sample sizes of 20-80 plants. sampling plans were ... | 2017 | 28334264 |
| validation of a hairy roots system to study soybean-soybean aphid interactions. | the soybean aphid (aphis glycines) is one of the main insect pests of soybean (glycine max) worldwide. genomics approaches have provided important data on transcriptome changes, both in the insect and in the plant, in response to the plant-aphid interaction. however, the difficulties to transform soybean and to rear soybean aphid on artificial media have hindered our ability to systematically test the function of genes identified by those analyses as mediators of plant resistance to the insect. ... | 2017 | 28358854 |
| thiamethoxam toxicity and effects on consumption behavior in orius insidiosus (hemiptera: anthocoridae) on soybean. | neonicotinoid residues can be present in soybean vegetative tissue, prey insects, and flower tissues, possibly making them toxic to pollinators and natural enemies. baseline information on the toxicity of neonicotinoids to beneficial insects other than pollinators through multiple routes of insecticide exposure is limited. the objectives of this study were 1) to evaluate the toxicity of thiamethoxam to the hemipteran predator, orius insidiosus say, exposed to residues through treated vegetative ... | 2017 | 28369319 |
| characterization and genetics of multiple soybean aphid biotype resistance in five soybean plant introductions. | five soybean plant introductions expressed antibiosis resistance to multiple soybean aphid biotypes. two introductions had resistance genes located in the rag1, rag2, and rag3 regions; one introduction had resistance genes located in the rag1, rag2, and rag4 regions; one introduction had resistance genes located in the rag1 and rag2 regions; and one introduction had a resistance gene located in the rag2 region. soybean aphid (aphis glycines matsumura) is the most important soybean [glycine max ( ... | 2017 | 28378054 |
| warming impact on herbivore population composition affects top-down control by predators. | understanding warming impact on herbivores facilitates predicting plant/crop dynamics in natural/agricultural systems. however, it remains unclear how warming will affect herbivore population size and population composition, consequently altering herbivore colonization in a tri-trophic system (plant-herbivore-predator or crop-pest-biocontrol agent). we studied a soybean-aphid-lady beetle system, by conducting (1) a laboratory warming experiment to examine warming impact (+2 °c or +4 °c) on the a ... | 2017 | 28424477 |
| assessing the value and pest management window provided by neonicotinoid seed treatments for management of soybean aphid (aphis glycines matsumura) in the upper midwestern united states. | a 2-year, multi-state study was conducted to assess the benefits of using soybean seed treated with the neonicotinoid thiamethoxam to manage soybean aphid in the upper midwestern usa and compare this approach with an integrated pest management (ipm) approach that included monitoring soybean aphids and treating with foliar-applied insecticide only when the economic threshold was reached. concentrations of thiamethoxam in soybean foliage were also quantified throughout the growing season to estima ... | 2017 | 28459234 |
| characterization of insect resistance loci in the usda soybean germplasm collection using genome-wide association studies. | management of insects that cause economic damage to yields of soybean mainly rely on insecticide applications. sources of resistance in soybean plant introductions (pis) to different insect pests have been reported, and some of these sources, like for the soybean aphid (sba), have been used to develop resistant soybean cultivars. with the availability of soysnp50k and the statistical power of genome-wide association studies, we integrated phenotypic data for beet armyworm, mexican bean beetle (m ... | 2017 | 28555141 |
| host adaptation of soybean dwarf virus following serial passages on pea (pisum sativum) and soybean (glycine max). | soybean dwarf virus (sbdv) is an important plant pathogen, causing economic losses in soybean. in north america, indigenous strains of sbdv mainly infect clover, with occasional outbreaks in soybean. to evaluate the risk of a us clover strain of sbdv adapting to other plant hosts, the clover isolate sbdv-md6 was serially transmitted to pea and soybean by aphid vectors. sequence analysis of sbdv-md6 from pea and soybean passages identified 11 non-synonymous mutations in soybean, and six mutations ... | 2017 | 28635666 |
| survival and feeding rates of four aphid species (hemiptera: aphididae) on various sucrose concentrations in diets. | different concentrations of sucrose were used to investigate how survival and feeding was affected in four species of aphids (hemiptera: aphididae). seven sucrose concentrations were evaluated in feeding chambers fitted with parafilm membranes and infested with nymphs of aphis glycines matsumura, diuraphis noxia kurdjumov, myzus persicae sulzer, or schizaphis graminum rondani at 25 °c and a photoperiod of 14:10 (l:d) h. survival on each diet was recorded 1, 3, 5, 7, 9, and 11 d. diet volumes (μl ... | 2017 | 28637212 |
| transcriptomic dynamics in soybean near-isogenic lines differing in alleles for an aphid resistance gene, following infestation by soybean aphid biotype 2. | genetic resistance of soybean [glycine max (l.) merr] against aphis glycines provides effective management of this invasive pest, though the underlying molecular mechanisms are largely unknown. this study aimed to investigate genome-wide changes in gene expressions of soybean near-isogenic lines (nils) either with the rag5 allele for resistance or the rag5 allele for susceptibility to the aphid following infestation with soybean aphid biotype 2. | 2017 | 28645245 |
| sublethal and hormesis effects of beta-cypermethrin on the biology, life table parameters and reproductive potential of soybean aphid aphis glycines. | beta-cypermethrin has long been recommended as an effective pesticide to control the soybean aphid, aphis glycines matsumura, a serious pest in soybean crops. besides acute toxicity, it leads to changes in life history traits of a. glycines, notably its reproductive potential. this study has assessed the effects of five sublethal concentrations (0.625, 1.25, 2.5, 5 and 10 µg/l) of beta-cypermethrin on different life history traits of a. glycines. exposure to these concentrations caused shorter o ... | 2017 | 28685415 |
| mapping novel aphid resistance qtl from wild soybean, glycine soja 85-32. | two novel qtls conferring aphid resistance were mapped and validated on soybean chromosomes 8 and 16, respectively. closely linked markers were developed to assist breeding for aphid resistance. soybean aphid, aphis glycines matsumura, is a highly destructive pest for soybean production. e08934, a soybean advanced breeding line derived from the wild soybean glycine soja 85-32, has shown strong resistance to aphids. to dissect the genetic basis of aphid resistance in e08934, a mapping population ... | 2017 | 28710504 |
| soybean aphid, aphis glycines (hemiptera: aphididae), developmental and reproductive capacity on white clover, trifolium repens (rosales: leguminosae), in northeast china. | nymphs of aphis glycines matsumura were individually reared to adults in the laboratory on detached leaf discs of trifolium repens l. (white clover) mounted on agar medium. adults of a. glycines were fed t. repens within small clip cages in the field. development, reproduction and intrinsic rates of increase of a. glycines were studied. these data were compared to those of controls fed known host plants including cultivated soybean glycine max (l.) merr. and the wild soybean species glycine soja ... | 2017 | 28798493 |
| fine mapping of the soybean aphid-resistance genes rag6 and rag3c from glycine soja 85-32. | rag6 and rag3c were delimited to a 49-kb interval on chromosome 8 and a 150-kb interval on chromosome 16, respectively. structural variants in the exons of candidate genes were identified. the soybean aphid, an invasive species, has significantly threatened soybean production in north america since 2000. host-plant resistance is known as an ideal management strategy for aphids. two novel aphid-resistance loci, rag6 and rag3c, from glycine soja 85-32, were previously detected in a 10.5-cm interva ... | 2017 | 28887657 |
| evidence for soybean aphid (hemiptera: aphididae) resistance to pyrethroid insecticides in the upper midwestern united states. | soybean aphid, aphis glycines matsumura (hemiptera: aphididae), is a damaging invasive pest of soybean in the upper midwest. threshold-based insecticide applications are the primary control method for soybean aphid, but few insecticide groups are available (i.e., pyrethroids, organophosphates, and neonicotinoids). to quantify current levels of soybean aphid susceptibility to pyrethroids in the upper midwest and monitor for insecticide resistance, leaf-dip bioassays were performed with λ-cyhaloth ... | 2017 | 28961778 |
| economic injury levels for aphis glycines matsumura (hemiptera: aphididae) on the soybean aphid tolerant ks4202 soybean. | the soybean aphid, aphis glycines matsumura (hemiptera: aphididae), is an invasive species from asia that has been the major economic insect pest of soybeans, glycine max (l.) merrill, since 2000. while use of soybeans expressing antibiosis and antixenosis is a well-studied strategy to manage this pest, aphid-tolerant soybeans remain underexplored. this study examined the relationship between cumulative aphid-days (cad) and yield loss in the tolerant soybean ks4202 during two growing seasons to ... | 2017 | 28961855 |
| effects of foliar insecticides on leaf-level spectral reflectance of soybean. | pest-induced changes in plant reflectance are crucial for the development of pest management programs using remote sensing. however, it is unknown if plant reflectance data is also affected by foliar insecticides applied for pest management. our study assessed the effects of foliar insecticides on leaf reflectance of soybean. a 2-yr field trial and a greenhouse trial were conducted using randomized complete block and completely randomized designs, respectively. treatments consisted of an untreat ... | 2017 | 29029168 |
| interactions of effects of host plant resistance and seed treatments on soybean aphid (aphis glycines matsumura) and soybean cyst nematode (heterodera glycines ichinohe). | the soybean cyst nematode, heterodera glycines, and soybean aphid, aphis glycines, are invasive, widespread and economically important pests of soybean, glycine max, in north america. management of these pests relies primarily on use of pesticides and soybean germplasm with genetic resistance. a 3-year field study and complementary greenhouse experiment were conducted to determine the benefits of host plant resistance (hpr) and pesticidal seed treatments for managing pest populations and preserv ... | 2017 | 29160037 |
| nostoc calcicola extract improved the antioxidative response of soybean to cowpea aphid. | soybean (glycine max (l.) merr. cv. "nam dan") is one of the most valuable crops in agricultural production in nghe an province (vietnam). our previous study revealed that extract of the cyanobacterium strain nostoc calcicola hn9 expressed positive effect on growth and development, and raised soybean productivity (tran et al. in proceeding of vietnam national conference of research on biology, da nang, 2016). we hypothesized that n. calcicola hn9 would improve the defense responses of g. max cv. ... | 2017 | 29185129 |
| acute-contact and chronic-systemic in vivo bioassays: regional monitoring of susceptibility to thiamethoxam in soybean aphid (hemiptera: aphididae) populations from the north central united states. | the risks associated with soybean aphid, aphis glycines matsumura (hemiptera: aphididae), in the north central soybean systems has fostered the adoption of prophylactic chemical control practices, such as planting seeds treated with neonicotinoid insecticides, especially thiamethoxam. consequently, there is a concern that increased selection pressure imposed on the arthropod-pest complex by this insecticide may lead to resistance. therefore, in vivo bioassays were conducted to determine the susc ... | 2017 | 29186445 |
| variable isotopic compositions of host plant populations preclude assessment of aphid overwintering sites. | soybean aphid (aphis glycines matsumura) is a pest of soybean in the northern midwest whose migratory patterns have been difficult to quantify. improved knowledge of soybean aphid overwintering sites could facilitate the development of control efforts with exponential impacts on aphid densities on a regional scale. in this preliminary study, we explored the utility of variation in stable isotopes of carbon and nitrogen to distinguish soybean aphid overwintering origins. we compared variation in ... | 2017 | 29206134 |
| determining the effectiveness of three-gene pyramids against aphis glycines (hemiptera: aphididae) biotypes. | since the discovery of aphis glycines matsumura (hemiptera: aphididae) in the united states, the primary management tactic has been foliar insecticides. alternative management options such as host plant resistance to a. glycines have been developed and their effectiveness proved. however, the use of host plant resistance was complicated by the discovery of multiple, virulent biotypes of a. glycines in the united states that are capable of overcoming single rag genes, rag1 and rag2, as well as a ... | 2017 | 29220517 |
| genetic origin and dispersal of the invasive soybean aphid inferred from population genetic analysis and approximate bayesian computation. | biological invasion is considered one of the most important global environmental problems. knowledge of the source and dispersal routes of invasion could facilitate the eradication and control of invasive species. soybean aphid, aphis glycines matsumura, is one of the most destructive soybean pests. for effective management of this pest, we conducted genetic analyses and approximate bayesian computation (abc) analysis to determine the origins and dispersal of the aphid species, as well as the so ... | 2018 | 29316260 |