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Genetic diversity in the US ex situ populations of the endangered Puerto Rican Boa, Chilabothrus inornatus
Zoo Biology ( IF 1.2 ) Pub Date : 2020-02-13 , DOI: 10.1002/zoo.21535 Emily R Aungst 1 , Alberto R Puente-Rolón 2 , R Graham Reynolds 1
Zoo Biology ( IF 1.2 ) Pub Date : 2020-02-13 , DOI: 10.1002/zoo.21535 Emily R Aungst 1 , Alberto R Puente-Rolón 2 , R Graham Reynolds 1
Affiliation
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The Puerto Rican Boa (Chilabothrus inornatus) was placed on the US Endangered Species List in 1970. Progress has been made since to clarify the recovery status of this species, though the design of a new recovery plan must include information regarding genetic variation within and among populations of this species. While measures of genetic diversity in wild populations of this species are finally becoming available, relative genetic diversity represented in ex situ populations is unknown, which hampers efforts to develop an ex situ species management plan. Here, we provide an analysis of genetic diversity in US public and private collections (zoos and breeders) using mitochondrial sequence data and five highly polymorphic nuclear microsatellite loci. We analyzed 50 boas from the US ex situ population and determined overall genetic diversity and relatedness among these individuals. We then compared these data to mitochondrial and microsatellite data obtained from 176 individuals from wild populations across the native range of the species. We found little inbreeding and a large amount of retained genetic diversity in the US ex situ population of C. inornatus relative to wild populations. Genetic diversity in the ex situ population is similar to that found in wild populations. Ours is only the second explicit attempt to characterize genetic diversity at the molecular level in ex situ populations of boid snakes. We anticipate that these results will inform current breeding strategies as well as offer additional information that will facilitate the continuation of ex situ conservation breeding or management in boas.
中文翻译：
濒临灭绝的波多黎各蟒蛇，奇拉波斯 inornatus 的美国迁地种群的遗传多样性
波多黎各蟒蛇 (Chilabothrus inornatus) 于 1970 年被列入美国濒危物种名单。此后在澄清该物种的恢复状态方面取得了进展，但新恢复计划的设计必须包括有关内部和之间遗传变异的信息该物种的种群。虽然该物种野生种群遗传多样性的测量最终可用，但异地种群中代表的相对遗传多样性是未知的，这阻碍了制定异地物种管理计划的努力。在这里，我们使用线粒体序列数据和五个高度多态性的核微卫星位点对美国公共和私人收藏（动物园和饲养员）的遗传多样性进行了分析。我们分析了来自美国易地种群的 50 条蟒蛇，并确定了这些个体之间的整体遗传多样性和相关性。然后，我们将这些数据与从该物种本地范围内的野生种群的 176 个人获得的线粒体和微卫星数据进行了比较。相对于野生种群，我们发现美国异地 C. inornatus 种群几乎没有近亲繁殖和大量保留的遗传多样性。异地种群的遗传多样性与野生种群的遗传多样性相似。我们只是第二次明确尝试在分子水平上表征类蛇异地种群的遗传多样性。
更新日期：2020-02-13
中文翻译：
濒临灭绝的波多黎各蟒蛇，奇拉波斯 inornatus 的美国迁地种群的遗传多样性
波多黎各蟒蛇 (Chilabothrus inornatus) 于 1970 年被列入美国濒危物种名单。此后在澄清该物种的恢复状态方面取得了进展，但新恢复计划的设计必须包括有关内部和之间遗传变异的信息该物种的种群。虽然该物种野生种群遗传多样性的测量最终可用，但异地种群中代表的相对遗传多样性是未知的，这阻碍了制定异地物种管理计划的努力。在这里，我们使用线粒体序列数据和五个高度多态性的核微卫星位点对美国公共和私人收藏（动物园和饲养员）的遗传多样性进行了分析。我们分析了来自美国易地种群的 50 条蟒蛇，并确定了这些个体之间的整体遗传多样性和相关性。然后，我们将这些数据与从该物种本地范围内的野生种群的 176 个人获得的线粒体和微卫星数据进行了比较。相对于野生种群，我们发现美国异地 C. inornatus 种群几乎没有近亲繁殖和大量保留的遗传多样性。异地种群的遗传多样性与野生种群的遗传多样性相似。我们只是第二次明确尝试在分子水平上表征类蛇异地种群的遗传多样性。
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