Arid
DOI10.1093/jmammal/gyw011
Phylogeographic and population genetic structure of bighorn sheep (Ovis canadensis) in North American deserts
Buchalski, Michael R.1,4; Sacks, Benjamin N.2,3; Gille, Daphne A.4; Penedo, Maria Cecilia T.5; Ernest, Holly B.4,6; Morrison, Scott A.7; Boyce, Walter M.1
通讯作者Boyce, Walter M.
来源期刊JOURNAL OF MAMMALOGY
ISSN0022-2372
EISSN1545-1542
出版年2016
卷号97期号:3页码:823-838
英文摘要

Fossil data are ambiguous regarding the evolutionary origin of contemporary desert bighorn sheep (Ovis canadensis subspecies). To address this uncertainty, we conducted phylogeographic and population genetic analyses on bighorn sheep subspecies found in southwestern North America. We analyzed 515 base pairs of mtDNA control region sequence and 39 microsatellites in 804 individuals from 58 locations. Phylogenetic analyses revealed 2 highly divergent clades concordant with Sierra Nevada (O. c. sierrae) and Rocky Mountain (O. c. canadensis) bighorn and showed that these 2 subspecies both diverged from desert bighorn prior to or during the Illinoian glaciation (similar to 315-94 thousand years ago [kya]). Desert bighorn comprised several more recently diverged haplogroups concordant with the putative Nelson (O. c. nelsoni), Mexican (O. c. mexicana), and Peninsular (O. c. cremnobates) subspecies. Corresponding estimates of effective splitting times (similar to 17-3 kya), and haplogroup ages (similar to 85-72 kya) placed the most likely timeframe for divergence among desert bighorn subspecies somewhere within the last glacial maximum. Median-joining haplotype network and Bayesian skyline analyses both indicated that desert bighorn collectively comprised a historically large and haplotype-diverse population, which subsequently lost much of its diversity through demographic decline. Using microsatellite data, discriminant analysis of principle components (DAPC) and Bayesian clustering analyses both indicated genetic structure concordant with the geographic distribution of 3 desert subspecies. Likewise, microsatellite and mitochondrial-based F-ST comparisons revealed significant fixation indices among the desert bighorn genetic clusters. We conclude these desert subspecies represent ancient lineages likely descended from separate Pleistocene refugial populations and should therefore be managed as distinct taxa to preserve maximal biodiversity.


英文关键词desert bighorn sheep desert southwest divergence date glacial refugia haplotype microsatellites mtDNA Ovis canadensis phylogeography subspecies
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000378152600015
WOS关键词MITOCHONDRIAL-DNA ; INSULAR POPULATION ; MTDNA VARIATION ; MOUNTAIN SHEEP ; CONSERVATION ; MANAGEMENT ; EVOLUTION ; SOFTWARE ; PROGRAM ; RESCUE
WOS类目Zoology
WOS研究方向Zoology
来源机构University of California, Davis
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/194601
作者单位1.Univ Calif Davis, Sch Vet Med, Wildlife Hlth Ctr, One Shields Ave, Davis, CA 95616 USA;
2.Univ Calif Davis, Mammalian Ecol & Conservat Unit, Vet Genet Lab, Sch Vet Med, One Shields Ave, Davis, CA 95616 USA;
3.Univ Calif Davis, Dept Populat Hlth & Reprod, Sch Vet Med, One Shields Ave, Davis, CA 95616 USA;
4.Univ Calif Davis, Wildlife & Ecol Unit, Vet Genet Lab, Sch Vet Med, One Shields Ave, Davis, CA 95616 USA;
5.Univ Calif Davis, Vet Genet Lab, Sch Vet Med, One Shields Ave, Davis, CA 95616 USA;
6.Univ Wyoming, Wildlife Genom & Dis Ecol Lab, Dept Vet Sci, 1000 E,Univ Ave, Laramie, WY 82071 USA;
7.Nature Conservancy, 201 Mission St, San Francisco, CA 94105 USA
推荐引用方式
GB/T 7714
Buchalski, Michael R.,Sacks, Benjamin N.,Gille, Daphne A.,et al. Phylogeographic and population genetic structure of bighorn sheep (Ovis canadensis) in North American deserts[J]. University of California, Davis,2016,97(3):823-838.
APA Buchalski, Michael R..,Sacks, Benjamin N..,Gille, Daphne A..,Penedo, Maria Cecilia T..,Ernest, Holly B..,...&Boyce, Walter M..(2016).Phylogeographic and population genetic structure of bighorn sheep (Ovis canadensis) in North American deserts.JOURNAL OF MAMMALOGY,97(3),823-838.
MLA Buchalski, Michael R.,et al."Phylogeographic and population genetic structure of bighorn sheep (Ovis canadensis) in North American deserts".JOURNAL OF MAMMALOGY 97.3(2016):823-838.
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