The genome sequence of the Antarctic bullhead notothen reveals evolutionary adaptations to a cold environment.

ABSTRACT:

Background

Antarctic fish have adapted to the freezing waters of the Southern Ocean. Representative adaptations to this harsh environment include a constitutive heat shock response and the evolution of an antifreeze protein in the blood. Despite their adaptations to the cold, genome-wide studies have not yet been performed on these fish due to the lack of a sequenced genome. Notothenia coriiceps, the Antarctic bullhead notothen, is an endemic teleost fish with a circumpolar distribution and makes a good model to understand the genomic adaptations to constant sub-zero temperatures.

Results

We provide the draft genome sequence and annotation for N. coriiceps. Comparative genome-wide analysis with other fish genomes shows that mitochondrial proteins and hemoglobin evolved rapid

SUBMITTER: Shin SC 

PROVIDER: S-EPMC4192396 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature