Transcriptomic Analysis of <i>Chilo suppressalis</i> (Walker) (Lepidoptera: Pyralidae) Reveals Cold Tolerance Mechanisms Under Parasitism Stress.

ABSTRACT: Parasitoids exhibit remarkable abilities to manipulate host physiology, ensuring offspring survival and development. This study investigated the molecular mechanisms underlying how the parasitoid Cotesia chilonis modulates cold tolerance in its host, the rice stem borer Chilo suppressalis, using transcriptome sequencing. We found that the host larvae's supercooling point was lowest at 3 days post-parasitism but increased significantly by day 4. Transcriptome analysis identified 507 differentially expressed genes (DEGs), including 235 up-regulated by parasitism. Functional enrichment revealed that these DEGs were primarily associated with ribosome biogenesis, protein processing in the endoplasmic reticulum (ER), and oxidative phosphorylation under parasitism stress. Notably, 2

SUBMITTER: Dong CL 

PROVIDER: S-EPMC12470921 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature