A comprehensive multilocus assessment of sparrow (Aves: Passerellidae) relationships
A comprehensive multilocus assessment of sparrow (Aves: Passerellidae) relationships
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DOI：
10.1016/j.ympev.2014.04.025
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发表时间：
2014-08-01
影响因子：
4.1
通讯作者：
Bryson, Robert W., Jr.
中科院分区：
文献类型：
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作者：
Klicka, John;Barker, F. Keith;Bryson, Robert W., Jr.
新世界麻雀（Emberizidae）是最著名的鸣禽群之一，长期以来一直被认为是新世界九元鸣禽组合的重要组成部分之一。尽管多年来一直受到分类学家的关注，直到最近才使用分子方法，建立了一个“核心”麻雀分支，允许重建系统发育假说，包括麻雀物种多样性的完整采样。在本文中，我们使用线粒体DNA基因序列从所有129个假定的物种麻雀和4个额外的（核）位点的一个子集，这些类群解决属和种的水平的关系。来自我们的线粒体（2184个碱基对）和核（5705个碱基对）DNA数据集的假设一般都是一致的进化支选区，但不同的进化支的关系。麻雀的多样性主要是由8个支持良好的分支，表明缺乏单系至少有三个目前公认的属。Ammodramus是多系的，需要另外两个属的命名。Spizella也是多系的，树麻雀（Spizella arborea）是分类学上的“离群者”。Pselliophorus被嵌入在一个更大的Atlaplapus组合中，应该与该组合并。这种麻雀关系的新假设将成为未来鸣禽内部变异比较分析的基础。(C)2014 Elsevier Inc. All rights reserved.
The New World sparrows (Emberizidae) are among the best known of songbird groups and have long-been recognized as one of the prominent components of the New World nine-primaried oscine assemblage. Despite receiving much attention from taxonomists over the years, and only recently using molecular methods, was a "core" sparrow clade established allowing the reconstruction of a phylogenetic hypothesis that includes the full sampling of sparrow species diversity. In this paper, we use mitochondrial DNA gene sequences from all 129 putative species of sparrow and four additional (nuclear) loci for a subset of these taxa to resolve both generic and species level relationships. Hypotheses derived from our mitochondrial (2184 base pairs) and nuclear (5705 base pairs) DNA data sets were generally in agreement with respect to clade constituency but differed somewhat with respect to among-clade relationships. Sparrow diversity is defined predominantly by eight well-supported clades that indicate a lack of monophyly for at least three currently recognized genera. Ammodramus is polyphyletic and requires the naming of two additional genera. Spizella is also polyphyletic with Tree Sparrow (Spizella arborea) as a taxonomic "outlier". Pselliophorus is embedded within a larger Atlapetes assemblage and should be merged with that group. This new hypothesis of sparrow relationships will form the basis for future comparative analyses of variation within songbirds. (C) 2014 Elsevier Inc. All rights reserved.