Arid
DOI10.1644/13-MAMM-A-321
Genetic diversity and demography of two endangered captive pronghorn subspecies from the Sonoran Desert
Klimova, Anastasia1; Munguia-Vega, Adrian2,3,4; Hoffman, Joseph I.5; Culver, Melanie6
通讯作者Klimova, Anastasia
来源期刊JOURNAL OF MAMMALOGY
ISSN0022-2372
EISSN1545-1542
出版年2014
卷号95期号:6页码:1263-1277
英文摘要

Species that have experienced population reduction provide valuable case studies for understanding genetic responses to demographic change. Pronghorn (Antilocapra americana) were once widespread across the North American plains but were subject to drastic population reductions due to overexploitation and habitat fragmentation during the late 19th and early 20th centuries. A. a. peninsularis and A. a. sonoriensis, 2 pronghorn subspecies that inhabit the southern edge of the species’ distribution, are almost extinct and now breed almost exclusively in captivity. We therefore sequenced the complete mitochondrial control region and genotyped 18 microsatellite loci in 109 individuals to evaluate the impact of population bottlenecks, captive breeding, small population sizes, and isolation on the genetic composition of captive populations of these 2 subspecies. We found extremely low levels of genetic diversity in both subspecies. The 2 subspecies showed high and significant genetic differentiation, indicating the absence of historic and recent gene flow despite their geographic proximity within the Sonoran Desert. Historical effective population size estimates for the 2 subspecies were inferred to be similar, whereas the Sonoran pronghorn has a contemporary effective size (Ne) more than twice as high as the Peninsular subspecies. Our findings suggest the need for careful genetic management of both subspecies in order to minimize the further loss of genetic variability.


英文关键词Antilocapra americana captive breeding genetic diversity population differentiation Sonoran Desert
类型Article
语种英语
国家Mexico ; USA ; Germany
收录类别SCI-E
WOS记录号WOS:000347399700015
WOS关键词EFFECTIVE POPULATION-SIZE ; MAXIMUM-LIKELIHOOD-ESTIMATION ; MITOCHONDRIAL-DNA ; COMPUTER-PROGRAM ; COMPREHENSIVE ANALYSIS ; SINGLE-SAMPLE ; SOFTWARE ; ALLELE ; DIFFERENTIATION ; BOTTLENECK
WOS类目Zoology
WOS研究方向Zoology
来源机构University of Arizona ; United States Geological Survey
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/183547
作者单位1.Univ Autonoma Baja Calif Sur, Dept Biol Marina, La Paz 23080, Baja California, Mexico;
2.Univ Arizona, Sch Nat Resources & Environm, Conservat Genet Lab, Tucson, AZ 85721 USA;
3.AC Isla Peruano, Guaymas 85448, Sonora, Mexico;
4.Inst Politecn Nacl, Ctr Invest Biol Noroeste SC, La Paz, Baja California, Mexico;
5.Univ Bielefeld, Dept Anim Behav, D-33501 Bielefeld, Germany;
6.Univ Arizona, Sch Nat Resources & Environm, Conservat Genet Lab, United States Geol Survey,Arizona Cooperat Fish &, Tucson, AZ 85721 USA
推荐引用方式
GB/T 7714
Klimova, Anastasia,Munguia-Vega, Adrian,Hoffman, Joseph I.,et al. Genetic diversity and demography of two endangered captive pronghorn subspecies from the Sonoran Desert[J]. University of Arizona, United States Geological Survey,2014,95(6):1263-1277.
APA Klimova, Anastasia,Munguia-Vega, Adrian,Hoffman, Joseph I.,&Culver, Melanie.(2014).Genetic diversity and demography of two endangered captive pronghorn subspecies from the Sonoran Desert.JOURNAL OF MAMMALOGY,95(6),1263-1277.
MLA Klimova, Anastasia,et al."Genetic diversity and demography of two endangered captive pronghorn subspecies from the Sonoran Desert".JOURNAL OF MAMMALOGY 95.6(2014):1263-1277.
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