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首页> 外文期刊>Biological Journal of the Linnean Society >Mitochondrial differentiation, introgression and phylogeny of species in the Tegenaria atrica group (Araneae : Agelenidae)
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Mitochondrial differentiation, introgression and phylogeny of species in the Tegenaria atrica group (Araneae : Agelenidae)

机译：Tegenaria atrica组（Araneae：Agelenidae）的线粒体分化，基因渗入和系统发育

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摘要

The relationships between the three members of the Tegenaria atrica group (T. atrica, T. saeva and T. gigantea) were examined with DNA sequence data from mitochondrial CO1, 16S rRNA, tRNA(leu(CUN)) and ND1 genes. Members of this group of large house spiders have overlapping distributions in western Europe and hybridize with each other to a variable degree. The close relatedness of all three species was supported by all analyses. T. saeva and T. gigantea are more closely affiliated than either is to T. atrica. Haplotypes clearly assignable to T. gigantea were also present in many specimens of T. saeva, suggesting asymmetrical introgression of mtDNA from T. gigantea into T. saeva. Molecular clock calibrations (CO1) suggest that deeper divisions within the genus Tegenaria may be in excess of 10 million years old, and that the evolutionary history of the T atrica group has been moulded by Quaternary glacial-interglacial cycles
机译：用线粒体CO1、16S rRNA，tRNA（leu（CUN））和ND1基因的DNA序列数据检查了Tegenaria atrica组的三个成员（T. atrica，T。saeva和T. gigantea）之间的关系。这组大型屋蜘蛛的成员在西欧分布重叠，并且彼此混杂程度不同。所有分析都证明了这三个物种的密切相关性。 T. saeva和T. gigantea与T. atrica的联系更紧密。在T. saeva的许多标本中也存在明显可归属于T. gigantea的单倍型，这表明mtDNA从T. gigantea到T. saeva的不对称渗入。分子钟定标（CO1）表明，Tegenaria属中的更深的分裂可能已经超过一千万年了，而Ttrica族的进化历史是由第四纪的冰间期形成的。

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