Rapid de novo evolution of X chromosome dosage compensation in Silene latifolia, a plant with young sex chromosomes

ABSTRACT: Silene latifolia is a dioecious plant with heteromorphic sex chromosomes that have originated only ~10 MYA and is a promising model organism to study sex chromosome evolution in plants. Previous work suggests that S. latifolia XY chromosomes have gradually stopped recombining and the Y chromosome is undergoing degeneration as in animal sex chromosomes. However, this work has been limited by the paucity of sex-linked genes available. Here, we used 35 Gb of RNA-seq data from multiple males (XY) and females (XX) of a S. latifolia inbred line to detect sex-linked SNPs and identified more than 1700 sex-linked contigs (with X-linked and Y-linked alleles). Analyses using known sex-linked and autosomal genes, together with simulations indicate that these newly identified sex-linked contigs are rel

ORGANISM(S): Silene latifolia

SUBMITTER: Niklaus Zemp 

PROVIDER: E-GEOD-35563 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress