Whole-genome analysis across 10 songbird families within Sylvioidea reveals a novel autosome-sex chromosome fusion.

ABSTRACT: Sex chromosomes in birds have long been considered to be extremely stable. However, this notion has lately been challenged by findings of independent autosome-sex chromosome fusions within songbirds, several of which occur within a single clade, the superfamily Sylvioidea. To understand what ecological and evolutionary processes drive changes in sex chromosome systems, we need complete descriptions of sex chromosome diversity across taxonomic groups. Here, we characterize the sex chromosome systems across Sylvioidea using whole-genome data of species representatives of 10 different families, including two published and eight new genomes. We describe a novel fusion in the family Cisticolidae (represented by Cisticola juncidis) involving a part of chromosome 4. We also confirm the pre

SUBMITTER: Sigeman H 

PROVIDER: S-EPMC7211462 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature