Category Archives: Bride Catalog

Dynamic evolutionary history and gene content of intercourse chromosomes across diverse songbirds

Songbirds have a species quantity nearly equal to compared to animals, and they are classic models for studying mechanisms of speciation and selection that is sexual. Intercourse chromosomes are hotspots of both processes, yet their evolutionary history in songbirds continues to be uncertain. To elucidate that, we characterize feminine genomes of 11 songbird types having ZW sex chromosomes, with 5 genomes of bird-of-paradise types newly manufactured in this work. We conclude that songbird intercourse chromosomes have actually withstood at the very least four actions of recombination suppression before their species radiation, creating a gradient pattern of pairwise series divergence termed ‘evolutionary strata’. Continue reading