Evolution of sex‐specific heat stress tolerance and larval Hsp70 expression in populations of Drosophila melanogaster adapted to larval crowding

• DOI: 10.1111/jeb.13897
• Publication Date: 2021-07-02T07:36:45Z
• Authors: Rohit Kapila; Mayank Kashyap; Aakanksha Gulati; Aaditya Narasimhan; Soumyadip Poddar; Arunika Mukhopadhaya; Nagaraj Guru Prasad
• Keywords: Melanogaster; Experimental Evolution; Crowding

The ability to tolerate temperature stress is an important component of adult fitness. In holometabolous insects like Drosophila melanogaster, resistance can be affected by growth conditions experienced during the larval stages. Although evolution under crowded known lead correlated many traits, its consequences on heat tolerance have not been investigated. Therefore, in present study, we assessed populations D. melanogaster adapted a stressful crowding environment. We used replicate selected for adaptation (MCUs), more than 230 generations, and their respective controls (MBs). Larvae from control were grown uncrowded conditions, shock at two different temperatures was measured. Further, compared Hsp70 expression larvae both also measured after mild treatment adults populations. Our results showed that leads gene stages improves males, but females.