Molecular phylogeography and the evolution and conservation of Amazonian mammals
Molecular phylogeography and the evolution and conservation of Amazonian mammals
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DOI：
10.1046/j.1365-294x.1998.00276.x
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发表时间：
1998-04-01
影响因子：
4.9
通讯作者：
Patton, JL
中科院分区：
文献类型：
--
作者：
Da Silva, MNF;Patton, JL
根据线粒体细胞色素B基因的比较序列，总结了亚马逊河流域有袋类和啮齿类15个属的地理分布。这些数据的地理覆盖面有限，样本广泛分布在从秘鲁的安第斯山脉底部到圭亚那海岸和巴西东部的整个亚马逊河流域。我们使用这种方法来定义物种的边界，最低限度的基础上的互惠单系性的原则，结合形态或其他遗传的不连续性。这样定义的分类群比以前认识到的要古老，许多谱系可以追溯到100万年到300万年以上，因此显然早于更新世早期。我们与模式的一致的地理变化与潜在的构造历史和主要河流的当前位置。最后，我们提供这些数据和模式的实用性保护的意见，阐明了需要将生物地理信息的一部分，在生物和地理区域层面上建立保护优先事项的理由。
The phylogeographic structure of 15 genera of Amazonian marsupials and rodents is summarized based on comparative sequence of the mitochondrial cytochrome b gene. The data are limited in geographical coverage, with samples widely scattered throughout Amazonia from the base of the Andes in Peru to the Guianan coast and eastern Brazil. We use this approach to define species boundaries, based minimally on the principle of reciprocal monophyly, in conjunction with morphological or other genetic discontinuities. The taxa so defined are older than previously appreciated, with many lineages dating from 1 to more than 3 Myr, and thus apparently predating the early Pleistocene. We relate patterns of concordant geographical shifts with underlying tectonic history and to current positions of major rivers. Finally, we provide comments on the utility of these data and patterns to conservation, articulating a need to incorporate phylogeographic information as part of the rationale in establishing conservation priorities at the organismal and geographical area levels.