Mata Helena, Fontana Carla Suertegaray, Maurício Giovanni Nachtigall, Bornschein Marcos Ricardo, de Vasconcelos Marcelo Ferreira, Bonatto Sandro L
Laboratório de Biologia Genômica e Molecular, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul Av Ipiranga, 6681, CEP 90619-900, Porto Alegre, RS, Brazil.
Mol Phylogenet Evol. 2009 Nov;53(2):450-62. doi: 10.1016/j.ympev.2009.07.017. Epub 2009 Jul 24.
Scytalopus and the recently erected Eleoscytalopus are among the Neotropical groups of birds whose taxonomy is most difficult to resolve given their very conservative morphology. We investigated the phylogeny and species limits of Eleoscytalopus and the eastern Scytalopus using two mitochondrial genes and two nuclear introns of multiple individuals from all species of these groups. The eastern Scytalopus are separated in three well defined clades also supported by morphological or vocal characteristics, although the relationships between these clades could not be resolved. We found several allopatric and very divergent lineages in these genera whose characteristics are consistent with species-level divergence, especially in S.speluncae. The great divergence between E. psychopompus and its sister species supports the former as a valid species. Our results corroborate the importance of the Bahia refuge as an avian center of endemism.
斯氏蚁鹩属（Scytalopus）以及最近新设立的埃氏蚁鹩属（Eleoscytalopus），属于新热带界鸟类群体，鉴于其形态非常保守，其分类学是最难解决的。我们利用这些类群所有物种多个个体的两个线粒体基因和两个核内含子，研究了埃氏蚁鹩属和东部斯氏蚁鹩属的系统发育及物种界限。东部斯氏蚁鹩分为三个界限分明的分支，形态或鸣声特征也支持这一划分，不过这些分支之间的关系尚未明确。我们在这些属中发现了几个异域分布且差异很大的谱系，其特征与物种水平的分化相符，尤其是在洞穴斯氏蚁鹩（S. speluncae）中。埃氏引魂蚁鹩（E. psychopompus）与其姐妹物种之间的巨大差异支持前者为一个有效物种。我们的结果证实了巴伊亚避难所作为鸟类特有中心的重要性。
