Journal
MOLECULAR PHYLOGENETICS AND EVOLUTION
Volume 47, Issue 1, Pages 36-44Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2007.05.026
Keywords
Lipotes vexillifer; Neophocaena phocaenoides; MHC; trans-species evolution; convergent evolution
Ask authors/readers for more resources
Two DRA alleles and six MHC-I alleles were identified from a group of 15 baiji (Lipotes vexillifer), the most threatened cetacean in the world. Little sequence variation was detected at the DRA locus but extensive variation at the MHC-I locus. In combination with data at the DQB locus previously reported, three MHC loci exon 2 of the baiji all revealed striking similarity with those of the finless porpoise. Especially, some identical alleles shared by both species at the MHC-I and DQB loci suggested the convergent evolution as a consequence of common adaptive solutions to similar environmental pressures in the Yangtze River. As for DRA locus, the identity alleles were shared not only by baiji and finless porpoise but by some other cetacean species of the families Phocoenidae and Delphinidae, suggesting trans-species evolution on this gene. (C) 2008 Published by Elsevier Inc.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available