Chromosomal genome of Triplophysa bleekeri provides insights into its evolution and environmental adaptation.

ABSTRACT:

Background

Intense stresses caused by high-altitude environments may result in noticeable genetic adaptions in native species. Studies of genetic adaptations to high elevations have been largely limited to terrestrial animals. How fish adapt to high-elevation environments is largely unknown. Triplophysa bleekeri, an endemic fish inhabiting high-altitude regions, is an excellent model to investigate the genetic mechanisms of adaptation to the local environment. Here, we assembled a chromosomal genome sequence of T. bleekeri, with a size of ∼628 Mb (contig and scaffold N50 of 3.1 and 22.9 Mb, respectively). We investigated the origin and environmental adaptation of T. bleekeri based on 21,198 protein-coding genes in the genome.

Results

Compared with fish species living at low

SUBMITTER: Yuan D 

PROVIDER: S-EPMC7684707 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature