| reduction in fecundity and shifts in cellular processes by a native virus on an invasive insect. | pathogens and their vectors have coevolutionary histories that are intricately intertwined with their ecologies, environments, and genetic interactions. the soybean aphid, aphis glycines, is native to east asia but has quickly become one of the most important aphid pests in soybean-growing regions of north america. in this study, we used bioassays to examine the effects of feeding on soybean infected with a virus it vectors (soybean mosaic virus [smv]) and a virus it does not vector (bean pod mo ... | 2014 | 24682151 |
| water stress modulates soybean aphid performance, feeding behavior, and virus transmission in soybean. | little is known about how water stress including drought and flooding modifies the ability of plants to resist simultaneous attack by insect feeding and transmission of insect-vectored pathogen. we analyzed insect population growth, feeding behaviors, virus transmission, and plant amino acid profiles and defense gene expression to characterize mechanisms underlying the interaction between water stress, soybean aphid and aphid-transmitted, soybean mosaic virus, on soybean plants. population growt ... | 2016 | 27200027 |
| shifts in buchnera aphidicola density in soybean aphids (aphis glycines) feeding on virus-infected soybean. | vertically transmitted bacterial symbionts are common in arthropods. aphids undergo an obligate symbiosis with buchnera aphidicola, which provides essential amino acids to its host and contributes directly to nymph growth and reproduction. we previously found that newly adult aphis glycines feeding on soybean infected with the beetle-transmitted bean pod mottle virus (bpmv) had significantly reduced fecundity. we hypothesized that the reduced fecundity was attributable to detrimental impacts of ... | 2015 | 25845267 |
| variability and transmission by aphis glycines of north american and asian soybean mosaic virus isolates. | the variability of north american and asian strains and isolates of soybean mosaic virus was investigated. first, polymerase chain reaction (pcr) products representing the coat protein (cp)-coding regions of 38 smvs were analyzed for restriction fragment length polymorphisms (rflp). second, the nucleotide and predicted amino acid sequence variability of the p1-coding region of 18 smvs and the helper component/protease (hc/pro) and cp-coding regions of 25 smvs were assessed. the cp nucleotide and ... | 2003 | 14551816 |