Genome of the tropical plant Marchantia inflexa: implications for sex chromosome evolution and dehydration tolerance.

ABSTRACT: We present a draft genome assembly for the tropical liverwort, Marchantia inflexa, which adds to a growing body of genomic resources for bryophytes and provides an important perspective on the evolution and diversification of land plants. We specifically address questions related to sex chromosome evolution, sexual dimorphisms, and the genomic underpinnings of dehydration tolerance. This assembly leveraged the recently published genome of related liverwort, M. polymorpha, to improve scaffolding and annotation, aid in the identification of sex-linked sequences, and quantify patterns of sequence differentiation within Marchantia. We find that genes on sex chromosomes are under greater diversifying selection than autosomal and organellar genes. Interestingly, this is driven primarily by diver

SUBMITTER: Marks RA 

PROVIDER: S-EPMC6584576 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature