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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Spatio-temporal patterns of mitochondrial DNA variation in hawksbill turtles (Eretmochelys imbricata) in Southeast Asia
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Spatio-temporal patterns of mitochondrial DNA variation in hawksbill turtles (Eretmochelys imbricata) in Southeast Asia

机译：东南亚（Eretmochelys imbricata）线粒体DNA变异的时空格局

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摘要

Mitochondrial DNA (mtDNA) polymorphisms provide useful information that can be used to estimate the phylogeographic relationships, historical demography, and migratory events of widely distributed animals. In this study, the spatio-temporal patterns of mtDNA polymorphisms were assessed in Indo-Pacific hawksbill turtles from Malaysian nesting rookeries and foraging aggregations sampled during 1996-2014. Clear genetic differences were observed between turtles from the Sabah Turtle Islands rookery in the Sulu Sea, and the rookeries of Melaka and Redang Island in the South China Sea off the Malay Peninsula; however, no temporal genetic changes were found to have occurred on a decadal time scale. Despite the descriptive evaluation of a few samples, Johor nesting turtles possessed different haplotypes from those at the proximate Melaka rookery, indicating the importance of conserving this small nesting population. Although continuous sampling efforts are needed to determine the relationships between specific rookeries and foraging aggregations, the presence of multiple haplotypes in Malaysian foraging aggregations, in combination with Lagrangian drifter buoy data, suggests that there have been migrations to foraging grounds in Southeast Asia from various rookeries. This study provides basic information for the conservation and management of hawksbill turtles in Southeast Asia. (C) 2015 Elsevier B.V. All rights reserved.
机译：线粒体DNA（mtDNA）多态性提供了有用的信息，这些信息可用于估计分布广泛的动物的亲缘关系，历史人口统计学和迁徙事件。在这项研究中，对1996-2014年间从马来西亚筑巢群和觅食聚集体中采集的印度太平洋太平洋s鸟中的mtDNA多态性的时空格局进行了评估。在苏禄海的沙巴龟岛群岛群与马来半岛南部的南海马六甲岛和热浪岛群之间，发现了明显的遗传差异。然而，在十年时间尺度上没有发现暂时的遗传变化。尽管对一些样本进行了描述性评估，但柔佛筑巢龟的单倍型与马六甲最近的群鸟不同，这表明了保护这一少量筑巢种群的重要性。尽管需要不断采样来确定特定种群与觅食聚集体之间的关系，但马来西亚觅食聚集体中存在多种单倍型，再结合拉格朗日漂流浮标数据，表明东南亚已经有从各个种群向东南亚觅食场的迁移。 。该研究为东南亚的保护与管理提供了基础信息。 （C）2015 Elsevier B.V.保留所有权利。

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