Identification of the notothenioid sister lineage illuminates the biogeographic history of an Antarctic adaptive radiation.

ABSTRACT:

Background

Antarctic notothenioids are an impressive adaptive radiation. While they share recent common ancestry with several species-depauperate lineages that exhibit a relictual distribution in areas peripheral to the Southern Ocean, an understanding of their evolutionary origins and biogeographic history is limited as the sister lineage of notothenioids remains unidentified. The phylogenetic placement of notothenioids among major lineages of perciform fishes, which include sculpins, rockfishes, sticklebacks, eelpouts, scorpionfishes, perches, groupers and soapfishes, remains unresolved. We investigate the phylogenetic position of notothenioids using DNA sequences of 10 protein coding nuclear genes sampled from more than 650 percomorph species. The biogeographic history of nototh

SUBMITTER: Near TJ 

PROVIDER: S-EPMC4461946 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature