Genomic evidence of neo-sex chromosomes in the eastern yellow robin.

ABSTRACT:

Background

Understanding sex-biased natural selection can be enhanced by access to well-annotated chromosomes including ones inherited in sex-specific fashion. The eastern yellow robin (EYR) is an endemic Australian songbird inferred to have experienced climate-driven sex-biased selection and is a prominent model for studying mitochondrial-nuclear interactions in the wild. However, the lack of an EYR reference genome containing both sex chromosomes (in birds, a female bearing Z and W chromosomes) limits efforts to understand the mechanisms of these processes. Here, we assemble the genome for a female EYR and use low-depth (10×) genome resequencing data from 19 individuals of known sex to identify chromosome fragments with sex-specific inheritance.

Findings

MaSuRCA hybrid ass

SUBMITTER: Gan HM 

PROVIDER: S-EPMC6736294 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature