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Assessing possible hybridization among managed Nubian ibex in North America
Zoo Biology ( IF 1.2 ) Pub Date : 2020-03-01 , DOI: 10.1002/zoo.21527
Andrea S Putnam 1 , Tram N Nguyen 2 , Alison Mott 3 , Marisa L Korody 4 , Oliver A Ryder 4
Affiliation  

Hybridization among closely related species is a concern in zoo and aquarium populations where unpedigreed animals are frequently exchanged with the private sector. In this study, we examine possible hybridization in a group of Nubian ibex (Capra nubiana) imported into the Association of Zoos and Aquariums' (AZA) Species Survival Program (SSP) from a private institution. These individuals appeared smaller in stature than adult SSP Nubian ibex and were excluded from breeding recommendations over the concern that they were hybrids. Twenty-six microsatellites were used to rule out recent hybridization with domestic goats, Siberian ibex (Capra sibirica), and Alpine ibex (Capra ibex). We argue that natural phenotypic variation across the large geographic range of Nubian ibex may account for the small stature of the imported ibex, as private institutions may have historically acquired individuals from locations that differed from the SSP founders. However, the imported Nubian ibex appeared genetically differentiated from the SSP Nubian ibex and may represent a source of genetic variation for the managed population.

中文翻译:

评估北美受管理的努比亚野山羊之间可能的杂交

在动物园和水族馆种群中,密切相关的物种之间的杂交是一个问题,在这些地方,非纯种动物经常与私营部门交换。在这项研究中,我们检查了从私人机构进口到动物园和水族馆协会 (AZA) 物种生存计划 (SSP) 的一组努比亚山羊(Capra nubiana)可能的杂交情况。这些个体看起来比成年 SSP Nubian ibex 小,并且由于担心它们是杂种而被排除在育种建议之外。使用 26 颗微卫星排除了最近与家山羊、西伯利亚山羊(Capra sibirica)和高山山羊(Capra ibex)的杂交。我们认为,努比亚野山羊在大地理范围内的自然表型变异可能是进口野山羊身材矮小的原因,因为私人机构历史上可能从与 SSP 创始人不同的地点收购个人。然而,进口的努比亚野山羊与 SSP 努比亚野山羊在基因上存在差异,可能代表了管理种群的遗传变异来源。
更新日期:2020-03-01
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