Shiping Liu
Population genomics reveal recent speciation and rapid evolutionary adaptation in polar bears
Liu, Shiping; Lorenzen, Eline D.; Fumagalli, Matteo; Li, Bo; Harris, Kelley; Xiong, Zijun; Zhou, Long; Korneliussen, Thorfinn Sand; Somel, Mehmet; Babbitt, Courtney; Wray, Greg; Li, Jianwen; He, Weiming; Wang, Zhuo; Fu, Wenjing; Morgan, Claire C.; Doherty, Aoife; O'Connell, Mary J.; McInerney, James O.; Born, Erik W.; Dal�n, Love; Dietz, Rune; Orlando, Ludovic; Sonne, Christian; Xiang, Xueyan; Zhang, Guojie; Nielsen, Rasmus; Willerslev, Eske; Wang, Jun
Authors
Eline D. Lorenzen
Matteo Fumagalli
Bo Li
Kelley Harris
Zijun Xiong
Long Zhou
Thorfinn Sand Korneliussen
Mehmet Somel
Courtney Babbitt
Greg Wray
Jianwen Li
Weiming He
Zhuo Wang
Wenjing Fu
Claire C. Morgan
Aoife Doherty
Professor MARY O'CONNELL MARY.O'CONNELL@NOTTINGHAM.AC.UK
PROFESSOR OF MOLECULAR EVOLUTION
James O. McInerney
Erik W. Born
Love Dal�n
Rune Dietz
Ludovic Orlando
Christian Sonne
Xueyan Xiang
Guojie Zhang
Rasmus Nielsen
Eske Willerslev
Jun Wang
Abstract
Polar bears are uniquely adapted to life in the High Arctic and have undergone drastic physiological changes in response to Arctic climates and a hyperlipid diet of primarily marine mammal prey. We analyzed 89 complete genomes of polar bear and brown bear using population genomic modeling and show that the species diverged only 479-343 thousand years BP. We find that genes on the polar bear lineage have been under stronger positive selection than in brown bears; nine of the top 16 genes under strong positive selection are associated with cardiomyopathy and vascular disease, implying important reorganization of the cardiovascular system. One of the genes showing the strongest evidence of selection, APOB, encodes the primary lipoprotein component of low-density lipoprotein (LDL); functional mutations in APOB may explain how polar bears are able to cope with life-long elevated LDL levels that are associated with high risk of heart disease in humans. PaperClip © 2014 Elsevier Inc.
Citation
Liu, S., Lorenzen, E. D., Fumagalli, M., Li, B., Harris, K., Xiong, Z., Zhou, L., Korneliussen, T. S., Somel, M., Babbitt, C., Wray, G., Li, J., He, W., Wang, Z., Fu, W., Morgan, C. C., Doherty, A., O'Connell, M. J., McInerney, J. O., Born, E. W., …Wang, J. (2014). Population genomics reveal recent speciation and rapid evolutionary adaptation in polar bears. Cell, 157(4), 785-794. https://doi.org/10.1016/j.cell.2014.03.054
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 4, 2014 |
Online Publication Date | May 8, 2014 |
Publication Date | May 8, 2014 |
Deposit Date | Jun 30, 2020 |
Journal | Cell |
Print ISSN | 0092-8674 |
Electronic ISSN | 1097-4172 |
Publisher | Cell Press |
Peer Reviewed | Peer Reviewed |
Volume | 157 |
Issue | 4 |
Pages | 785-794 |
DOI | https://doi.org/10.1016/j.cell.2014.03.054 |
Public URL | https://nottingham-repository.worktribe.com/output/1623062 |
Publisher URL | https://www.cell.com/fulltext/S0092-8674(14)00488-7 |
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