A high-resolution crossover landscape in Drosophila santomea reveals rapid and concerted evolution of multiple properties of crossing over control.

ABSTRACT: Crossing over is a fundamental process in sexually reproducing species, ensuring proper chromosome segregation during gamete formation and generating new allelic combinations that enhance adaptation. Despite its essential role, genes involved in crossing over evolve rapidly and there is extensive variation in the rate and genomic distribution of crossovers across species. Considering this rapid evolution, identifying differences between very closely related species is crucial for understanding the molecular basis of natural variation in crossing over control. Here, we present a genome-wide, high-resolution crossover map for Drosophila santomea and compare it with those of its sister species D. yakuba and the more distantly related D. melanogaster. Upon examining 784 individual meiotic prod

SUBMITTER: Llopart A 

PROVIDER: S-EPMC12500166 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature