Phylogenetic relationships of the fox-like canids: mitochondrial DNA restriction fragment, site and cytochrome b sequence analyses
Phylogenetic relationships of the fox-like canids: mitochondrial DNA restriction fragment, site and cytochrome b sequence analyses
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DOI：
10.1111/j.1469-7998.1992.tb04430.x
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发表时间：
1992-09
影响因子：
2
通讯作者：
E. Geffen;A. Mercure;D. Girman;D. Macdonald;R. Wayne;R. Wayne
中科院分区：
文献类型：
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作者：
E. Geffen;A. Mercure;D. Girman;D. Macdonald;R. Wayne;R. Wayne
像狐狸一样的犬科包括Alopex属、Otocyon属、Feneck us属、Urocyon属和Vulpe属的分类群。以往的形态分析表明，后三属的物种非常相似，应归入同一属，而Alopex和Otocyon的差异很大，应归入不同的属。应用系统发育学方法，分析了狐狸犬线粒体DNA(MtDNA)限制性内切酶片段和限制性内切酶切点数据，以及细胞色素b基因402bp的序列变异。我们的结果表明，北极狐狸Alopex lagopus实际上是雪狐属的一种非常近的近亲。同样，Fennec，Fennecus Zerda与共存的沙漠物种Blanford‘s Fox，Vulpers Cana有亲缘关系。灰狐狸Urocyon cinereoargenteus和蝙蝠耳狐Otocyon megalotis彼此之间或与任何采样的狐狸分类群都没有密切的亲缘关系。我们的结果表明，犬科动物的沙漠适应至少独立进化了两次，更新世冰川作用和特征差异可能是犬科动物形态变化的重要原因。
The fox-like canids include taxa from the genera Alopex, Otocyon, Fennecus, Urocyon and Vulpes. Previous morphological analysis indicated that species from the latter three genera are very similar and should be included in the same genus whereas Alopex and Otocyon are sufficiently different to be included in separate genera. Using phylogenetic methods, we analyse mitochondrial DNA (mtDNA) restriction fragment and restriction site data, and 402 bp of cytochrome b sequence variation in fox-like canids. Our results suggest that Alopex lagopus, the arctic fox, is actually a very close relative of the swift fox, a species in the genus Vulpes. Similarly, the fennec, Fennecus zerda is related to the co-existing desert species, the Blanford's fox, Vulpes cana. The grey fox, Urocyon cinereoargenteus, and the bat-eared fox, Otocyon megalotis, are not closely related to each other or to any of the sampled fox taxa. Our results indicate that desert adaptations have evolved independently at least twice in the Canidae, and that Pleistocene glaciations and character divergence may be important causes of morphological change in canids.