Arid
DOI10.1098/rspb.2015.2334
Diabolical survival in Death Valley: recent pupfish colonization, gene flow and genetic assimilation in the smallest species range on earth
Martin, Christopher H.1; Crawford, Jacob E.2,3; Turner, Bruce J.4; Simons, Lee H.5
通讯作者Martin, Christopher H.
来源期刊PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
ISSN0962-8452
EISSN1471-2954
出版年2016
卷号283期号:1823
英文摘要

One of the most endangered vertebrates, the Devils Hole pupfish Cyprinodon diabolis, survives in a nearly impossible environment: a narrow subterranean fissure in the hottest desert on earth, Death Valley. This species became a conservation icon after a landmark 1976 US Supreme Court case affirming federal groundwater rights to its unique habitat. However, one outstanding question about this species remains unresolved: how long has diabolis persisted in this hellish environment? We used next-generation sequencing of over 13 000 loci to infer the demographic history of pupfishes in Death Valley. Instead of relicts isolated 2-3 Myr ago throughout repeated flooding of the entire region by inland seas as currently believed, we present evidence for frequent gene flow among Death Valley pupfish species and divergence after the most recent flooding 13 kyr ago. We estimate that Devils Hole was colonized by pupfish between 105 and 830 years ago, followed by genetic assimilation of pelvic fin loss and recent gene flow into neighbouring spring systems. Our results provide a new perspective on an iconic endangered species using the latest population genomic methods and support an emerging consensus that timescales for speciation are overestimated in many groups of rapidly evolving species.


英文关键词demographic inference population genomics speciation conservation genetics genetic accommodation introgression
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000375858400005
WOS关键词DEVILS HOLE PUPFISH ; CRATER LAKE CICHLIDS ; INBREEDING DEPRESSION ; ADAPTIVE RADIATION ; SYMPATRIC SPECIATION ; SMALL POPULATIONS ; CYPRINODON-VARIEGATUS ; DIVERGENCE TIMES ; EXTINCTION RISK ; EVOLUTION
WOS类目Biology ; Ecology ; Evolutionary Biology
WOS研究方向Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology
来源机构University of California, Berkeley
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/195750
作者单位1.Univ N Carolina, Dept Biol, Chapel Hill, NC USA;
2.Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA;
3.Univ Calif Berkeley, Ctr Theoret Evolutionary Genom, Berkeley, CA 94720 USA;
4.Virginia Tech, Dept Biol Sci, Blacksburg, VA 24061 USA;
5.US Fish & Wildlife Serv, Las Vegas, NV USA
推荐引用方式
GB/T 7714
Martin, Christopher H.,Crawford, Jacob E.,Turner, Bruce J.,et al. Diabolical survival in Death Valley: recent pupfish colonization, gene flow and genetic assimilation in the smallest species range on earth[J]. University of California, Berkeley,2016,283(1823).
APA Martin, Christopher H.,Crawford, Jacob E.,Turner, Bruce J.,&Simons, Lee H..(2016).Diabolical survival in Death Valley: recent pupfish colonization, gene flow and genetic assimilation in the smallest species range on earth.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,283(1823).
MLA Martin, Christopher H.,et al."Diabolical survival in Death Valley: recent pupfish colonization, gene flow and genetic assimilation in the smallest species range on earth".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 283.1823(2016).
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