Hsp19.9 and Hsp90 are essential for thermotolerance in Bombyx mori: Insights into heat stress adaptation mechanisms

Acclimation to abiotic stress is crucial for insect adaptation, particularly under extreme climatic conditions. The silkworm (Bombyx mori), a model lepidopteran insect, serves a valuable system for studying thermal stress responses; however, the molecular mechanisms underlying its adaptation to thermal stress remain poorly understood. this study was carried out to find the molecular mechanism and key genes responsible for heat hardening in silkworm