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首页> 外文期刊>Journal of genetics >The loss of genetic diversity in the Chinese paddlefish (Psephurus gladius Martens) as revealed by DNA fingerprinting
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The loss of genetic diversity in the Chinese paddlefish (Psephurus gladius Martens) as revealed by DNA fingerprinting

机译：DNA指纹图谱显示中华pad（Psephurus gladius Martens）的遗传多样性丧失

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摘要

Examining patterns of genetic diversity has become an integral component of many management plans concerning endangered species. Chinese paddlefish {Psephurus gladius Martens), a large-sized freshwater fish, is the only member of the family Polyodontidae present in Asia and in the main stream of the Yangtze river. Since the Gezhouba Dam, which was built in 1981, blocked the channel and prevented sturgeon from swimming into the lower-middle section of the Yangtze river, currently the Chinese paddlefish is found only in the upper main stem of the Yangtze river. Furthermore, in the last two decades, the over-catching, habitat destruction and pollution have caused a rapid reduction of the wild population of Chinese paddlefishes, such that the species is now listed as endangered (Category I of the State Key Protected Wildlife List, in the CR Category of the IUCN and on Appendix II of the CITES; Yue et al. 1998).
机译：审查遗传多样性的方式已成为许多有关濒危物种的管理计划的组成部分。中国pad鱼（Psephurus gladius Martens）是一种大型淡水鱼，是亚洲和长江干流中Poly科的唯一成员。由于1981年建成的葛洲坝大坝阻塞了河道并阻止st鱼游入长江中下游，因此目前中国pad鱼仅在长江上游主干中发现。此外，在过去的二十年中，过度捕捞，栖息地破坏和污染导致中国Chinese鱼的野生种群迅速减少，因此该物种现已被列为濒危物种（国家重点保护野生动物名录第一类， IUCN的CR类别和CITES附录II; Yue等，1998）。

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