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首页> 外文期刊>Tropical Conservation Science >Conservation and Management of iTrachemys venusta venusta/i in Southern Mexico: A Genetic Approach
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Conservation and Management of iTrachemys venusta venusta/i in Southern Mexico: A Genetic Approach

机译：墨西哥南部 Trachemys venusta venusta venusta venusta的保护和管理：一种遗传方法

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The Meso-American slider turtle ( Trachemys venusta) is a freshwater turtle that is widely distributed from Mexico to Colombia. Due to the overexploitation of populations of this species in Mexico, it has been placed within the “subject to special protection” category formulated by the Official Mexican Standard NOM-059-ECOL-2010. In the state of Tabasco, Mexico, Management Units for the Conservation of Wildlife (UMA) were created to reduce the impact of overexploitation of freshwater turtles bred in captivity. However, no genetic management plan was considered. The present study was carried out in an UMA in the state of Tabasco. We obtained the level of genetic diversity of the founder individuals of the UMA in order to develop a management plan which will optimize reproduction in the UMA. Genetic diversity was compared between captive (n?=?86) and wild (n?=?45) individuals using 14 microsatellite molecular markers. The genetic diversity parameter ??determined in this study was slightly higher for captive than for wild population ( H sube/sub ?=?0.606 and H sube/sub ?=?0.594 respectively), reflecting the mix of genetic sources in captive group (founding individuals from different localities) and demonstrating that the captive population contains a diverse subset of alleles from representative populations. The analysis of genetic structure revealed a relationship between captive and wild populations, indicating the influence of the two principal river basins in this region on the populations structure of freshwater turtles. Finally, according to the results obtained from the relationship analysis, we recommend the use of 19 females and 13 males to constitute the appropriate breeding group, generating a potential of 247 dyads with no relationship. However, in order to improve breeding program and the genetic diversity of captive population, we suggest to introduce wild-caught individuals. These results are the first regarding genetic management in a Mexican UMA and demonstrate the importance of molecular approaches in the management and conservation of captive species.
机译：中美洲滑块龟（Trachemys venusta）是一种淡水龟，广泛分布于墨西哥到哥伦比亚。由于墨西哥在墨西哥群体的群体过度的影响，它已被置于官方墨西哥标准NOM-059-ECOL-2010制定的“特殊保护”类别中。在塔巴斯科的状态下，墨西哥，保护野生动物（UMA）的管理单位是为了减少射击射击次射击次射线的过度影响。但是，没有考虑遗传管理计划。本研究在塔巴斯科州的UMA中进行。我们获得了UMA的创始人遗传多样性的水平，以制定一个将优化UMA中繁殖的管理计划。在使用14微卫星分子标记的俘虏（n？=α86）和野生（n？= 45）个体之间比较遗传多样性。在本研究中确定的遗传多样性参数比遍布野生种群略高（H e ？= 0.606和h e ？= 0.594），反映俘虏组中的遗传资源混合（来自不同地区的创始人），并证明俘虏人群含有来自代表性人群的多样性等位基因。遗传结构分析揭示了俘虏和野生种群之间的关系，表明这两个地区在淡水龟的群体结构上的两个主要河流盆地的影响。最后，根据从关系分析获得的结果，我们建议使用19名女性和13名男性来构成适当的育种组，产生247个二元的潜力，没有任何关系。然而，为了改善养殖计划和俘虏人群的遗传多样性，我们建议介绍野生捕获的人。这些结果是墨西哥UMA中的第一个关于遗传管理，并证明了分子方法在俘虏物种的管理和保护中的重要性。

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