Seasonal changes in recombination characteristics in a natural population of Drosophila melanogaster.

ABSTRACT: Environmental seasonality is a potent evolutionary force, capable of maintaining polymorphism, promoting phenotypic plasticity and causing bet-hedging. In Drosophila, environmental seasonality has been reported to affect life-history traits, tolerance to abiotic stressors and immunity. Oscillations in frequencies of alleles underlying fitness-related traits were also documented alongside SNPs across the genome. Here, we test for seasonal changes in two recombination characteristics, crossover rate and crossover interference, in a natural D. melanogaster population from India using morphological markers of the three major chromosomes. We show that winter flies, collected after the dry season, have significantly higher desiccation tolerance than their autumn counterparts. This difference pro

SUBMITTER: Aggarwal DD 

PROVIDER: S-EPMC8405755 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature