Genome architecture and diverged selection shaping pattern of genomic differentiation in wild barley.

ABSTRACT: Divergent selection of populations in contrasting environments leads to functional genomic divergence. However, the genomic architecture underlying heterogeneous genomic differentiation remains poorly understood. Here, we de novo assembled two high-quality wild barley (Hordeum spontaneum K. Koch) genomes and examined genomic differentiation and gene expression patterns under abiotic stress in two populations. These two populations had a shared ancestry and originated in close geographic proximity but experienced different selective pressures due to their contrasting micro-environments. We identified structural variants that may have played significant roles in affecting genes potentially associated with well-differentiated phenotypes such as flowering time and drought response between two

SUBMITTER: Zhang W 

PROVIDER: S-EPMC9829399 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature