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首页> 外文期刊>Zoological Science >Phylogenetic Relationships, Genetic Divergence, Historical Biogeography and Conservation of an Endangered Gecko, Goniurosaurus kuroiwae (Squamata: Eublepharidae), from the Central Ryukyus, Japan
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Phylogenetic Relationships, Genetic Divergence, Historical Biogeography and Conservation of an Endangered Gecko, Goniurosaurus kuroiwae (Squamata: Eublepharidae), from the Central Ryukyus, Japan

机译：系统发育关系，遗传发散，历史生物地理学和来自日本中部琉球的濒临灭绝的壁虎Goniurosaurus kuroiwae（Squamata：Eublepharidae）的保护

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摘要

The Kuroiwa's eyelid gecko Goniurosaurus kuroiwae is an endangered species in a state of relict endemism in the Central Ryukyus, Japan, and is divided into five subspecies. We analyzed variations in sequence data for approximately 1900 base positions of mitochondrial 12S and 16S rRNA, and cytochrome b genes from samples representing all recognized subspecies of G. kuroiwae together with those from congeneric species in order to test the relevant previous phylogenetic hypotheses and discuss biogeographical implications in the degree and pattern of genetic divergence within G. kuroiwae. Our results, while confirming a previous molecular phylogenetic hypothesis proposed on the basis of much smaller data set, negate the relationships hypothesized on morphological grounds by explicitly supporting: 1) the primary dichotomy, with substantial genetic divergence, between G. k. splendens from the Amami Island Group and the remaining subspecies all from the Okinawa Island Group; and 2) the presence of at least six independent lineages within the latter, indicating non-monophyly for two of the subspecies, G. k. kuroiwae and G. k. orientalis, in the current taxonomic definitions. The marked genetic divergence between populations of the two island groups seems to have initiated in the middle Miocene, i.e., prior to formation of straits that have consistently been separating these two island groups since the early Pleistocene. All populations of G. kuroiwae are regarded as endangered from the viewpoint of conservation genetics.
机译：Kuroiwa的眼皮壁虎Goniurosaurus kuroiwae是日本中部琉球中一种遗留特有种的濒危物种，分为五个亚种。我们分析了代表线粒体黑猩猩所有公认的亚种的样品中线粒体12S和16S rRNA的大约1900个碱基位置的序列数据变异以及细胞色素b基因，以及来自同类物种的细胞色素b基因，以便测试先前的相关系统发生假设并讨论了生物地理学对G. kuroiwae内部遗传差异的程度和模式的影响。我们的结果在确认先前基于较小数据集提出的分子系统发育假说的同时，通过明确支持：1）G. k之间存在主要遗传差异的主要二分法，否定了基于形态学基础假设的关系。 the美岛群的锦绣树和冲绳岛群的其余亚种; 2）在后者内至少有6个独立的世系，表明两个亚种G.k是非单亲的。 kuroiwae和G. k。在当前分类学定义中的orientalis。这两个岛群的种群之间的显着遗传差异似乎始于中新世中期，即自早更新世以来一直将这两个岛群分隔开的海峡形成之前。从保护遗传学的角度来看，所有黑斑病菌种群都被视为濒危物种。

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