Recombination landscape dimorphism and sex chromosome evolution in the dioecious plant Rumex hastatulus.

ABSTRACT: There is growing evidence from diverse taxa for sex differences in the genomic landscape of recombination, but the causes and consequences of these differences remain poorly understood. Strong recombination landscape dimorphism between the sexes could have important implications for the dynamics of sex chromosome evolution because low recombination in the heterogametic sex can favour the spread of sexually antagonistic alleles. Here, we present a sex-specific linkage map and revised genome assembly of Rumex hastatulus and provide the first evidence and characterization of sex differences in recombination landscape in a dioecious plant. We present data on significant sex differences in recombination, with regions of very low recombination in males covering over half of the genome. Th

SUBMITTER: Rifkin JL 

PROVIDER: S-EPMC8935318 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature