Host plant flooding stress in soybeans differentially impacts avirulent and virulent soybean aphid (Aphis glycines) biotypes.

ABSTRACT: Insect herbivore evolution is tightly linked to changes in their host plants. Many plants have defensive traits that enable them to naturally tolerate and/or deter insect herbivory (host plant resistance; HPR). Some insects have adapted to overcome or resist these defenses (virulence). Global climate change may exacerbate insect virulence, although these interactions have not been closely examined. We tested how one abiotic stressor, flooding, affects interactions between soybeans and two different biotypes of the invasive, soybean aphid (Aphis glycines). In laboratory assays, flooding suppressed avirulent aphid population growth but had no impact on virulent conspecifics, indicating a differential fitness response between biotypes. We also used RNA sequencing to compare flooding stress im

SUBMITTER: Lewis MT 

PROVIDER: S-EPMC11811272 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature