首页> 美国卫生研究院文献>other >An improved phylogeny of the Andean tit-tyrants (Aves Tyrannidae): More characters trump sophisticated analyses
【2h】

An improved phylogeny of the Andean tit-tyrants (Aves Tyrannidae): More characters trump sophisticated analyses

机译:Andean滴度(AvesTyrannidae)的改善的系统发作:更多的人物特朗普特勤分析

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The phylogeny of the flycatcher genus Anairetes was previously inferred using short fragments of mitochondrial DNA and parsimony and distance-based methods. The resulting topology spurred taxonomic revision and influenced understanding of Andean biogeography. More than a decade later, we revisit the phylogeny of Anairetes tit-tyrants using more mtDNA characters, seven unlinked loci (3 mitochondrial genes, 6 nuclear loci), more closely related outgroup taxa, partitioned Bayesian analyses, and two coalescent species-tree approaches (Bayesian estimation of species trees, BEST; Bayesian evolutionary analysis by sampling trees, *BEAST). Of these improvements in data and analyses, the fourfold increase in mtDNA characters was both necessary and sufficient to incur a major shift in the topology and near-complete resolution. The species-tree analyses, while theoretically preferable to concatenation or single gene approaches, yielded topologies that were compatible with mtDNA but with weaker statistical resolution at nodes. The previous results that had led to taxonomic and biogeographic reappraisal were refuted, and the current results support the resurrection of the genus Uromyias as the sister clade to Anairetes. The sister relationship between these two genera corresponds to an ecological dichotomy between a depauperate humid cloudforest clade and a diverse dry-tolerant clade that has diversified along the latitudinal axis of the Andes. The species-tree results and the concatenation results each reaffirm the primacy of mtDNA to provide phylogenetic signal for avian phylogenies at the species and subspecies level. This is due in part to the abundance of informative characters in mtDNA, and in part to its lower effective population size that causes it to more faithfully track the species tree.
机译:使用短片段的线粒体DNA和分析和距离的方法推断出捕蝇属属植物的系统发育。由此产生的拓扑刺激了分类学修正和影响安第斯生物地理的理解。超过十年后,我们通过更多MTDNA字符重新审视了患有更多MTDNA特征的滴度滴度的系统发育,七个不链接的基因座(3个线粒体基因,6个核基因座),更密切相关的小组分类,分区贝叶斯分析以及两种膨胀物种树方法(贝叶斯估计物种树木,最好;采样树木,*野兽的贝叶斯进化分析。在数据和分析中的这些改进中,MTDNA字符的四倍增加都是必要的,并且足以产生拓扑和近乎完整的分辨率的重大变化。物种树分析,而理论上优选串联或单一基因方法,产生与MTDNA相容但具有较弱的节点统计分辨率的拓扑。提出了先前的结果,导致分类和生物地理重新评估,目前的结果支持尿道属的复活,因为姐姐的姐妹们散落于航空。这两种属之间的姐妹关系对应于消除潮湿的云云层的生态二分法,其具有沿着鹞的纬度轴线多样化的不同的干燥耐受疏水板。物种树结果和串联结果各自重申MTDNA的首要来为物种和亚种水平提供禽动生学系统的系统发育信号。这部分是由于MTDNA中的丰富性状,部分原因是其较低的有效种群大小,导致它更忠实地跟踪物种树。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号