A Species-Level Phylogeny of Extant Snakes with Description of a New Colubrid Subfamily and Genus.
A Species-Level Phylogeny of Extant Snakes with Description of a New Colubrid Subfamily and Genus.
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DOI：
10.1371/journal.pone.0161070
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Lailvaux SP
中科院分区：
文献类型：
--
作者：
Figueroa A;McKelvy AD;Grismer LL;Bell CD;Lailvaux SP
蛇有超过3,500种，包括各种形态和生态，占有鳞动物多样性的36%。尽管有几次尝试估计更高层次的蛇的关系和许多评估属或物种水平的同源性，一个大规模的物种水平的同源性只集中在蛇还没有完成。在这里，我们使用最大似然法对1745个分类群（1652个蛇类物种+7个外群分类群）和来自10个基因座（5个核基因座，5个线粒体基因座）的9，523个碱基对的超矩阵进行了最大规模的蛇生命树估计，包括以前未测序的属（2）和种（61）。增加分类单元的采样导致了一个新的更高层次的拓扑结构，并证实了许多较低层次的关系，加强了高节点支持值（> 85%）下降到物种水平（73.69%的节点）。虽然大多数科和亚科被强烈支持为单系，支持值> 88%，但一些科和许多属是并系的，主要是由于有限的分类单元和位点采样导致稀疏的超矩阵和一些密切相关的分类单元之间的最小序列重叠。随着所有流氓类群和incertae sedis物种消除，高层次的关系和支持值保持相对不变，除了在五个有问题的分支。我们的分析导致了新的拓扑结构在更高和更低的水平;解决了以前的几个拓扑问题;建立了新的并系关系;指定一个新的亚科，Ahaetuliinae，属Ahaetulla，Escheropelea，Dendrephis，和Dryophiops;并任命Hemerophis（Coluber）zebrinus为一个新属，Mopanveldophis。虽然我们提供了一些独特的问题节点的洞察力，在更深的系统发育尺度，这些节点的分辨率可能需要采样的更缓慢演变的核基因。
With over 3,500 species encompassing a diverse range of morphologies and ecologies, snakes make up 36% of squamate diversity. Despite several attempts at estimating higher-level snake relationships and numerous assessments of generic- or species-level phylogenies, a large-scale species-level phylogeny solely focusing on snakes has not been completed. Here, we provide the largest-yet estimate of the snake tree of life using maximum likelihood on a supermatrix of 1745 taxa (1652 snake species + 7 outgroup taxa) and 9,523 base pairs from 10 loci (5 nuclear, 5 mitochondrial), including previously unsequenced genera (2) and species (61). Increased taxon sampling resulted in a phylogeny with a new higher-level topology and corroborate many lower-level relationships, strengthened by high nodal support values (> 85%) down to the species level (73.69% of nodes). Although the majority of families and subfamilies were strongly supported as monophyletic with > 88% support values, some families and numerous genera were paraphyletic, primarily due to limited taxon and loci sampling leading to a sparse supermatrix and minimal sequence overlap between some closely-related taxa. With all rogue taxa and incertae sedis species eliminated, higher-level relationships and support values remained relatively unchanged, except in five problematic clades. Our analyses resulted in new topologies at higher- and lower-levels; resolved several previous topological issues; established novel paraphyletic affiliations; designated a new subfamily, Ahaetuliinae, for the genera Ahaetulla, Chrysopelea, Dendrelaphis, and Dryophiops; and appointed Hemerophis (Coluber) zebrinus to a new genus, Mopanveldophis. Although we provide insight into some distinguished problematic nodes, at the deeper phylogenetic scale, resolution of these nodes may require sampling of more slowly-evolving nuclear genes.
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影响因子：
56.9
作者：
Bossuyt, F;Meegaskumbura, M;Milinkovitch, MC
通讯作者：
Milinkovitch, MC
影响因子：
4.1
作者：
Carranza, S.;Arnold, E. N.;Pleguezuelos, J. M.
通讯作者：
Pleguezuelos, J. M.
影响因子：
4.1
作者：
Castoe, TA;Parkinson, CL
通讯作者：
Parkinson, CL
DOI：
10.1111/j.1096-3642.2008.00495.x
发表时间：
2009-07-01
影响因子：
2.8
作者：
Fenwick, Allyson M.;Gutberlet, Ronald L., Jr.;Parkinson, Christopher L.
通讯作者：
Parkinson, Christopher L.
影响因子：
4.1
作者：
Alfaro, ME;Arnold, SJ
通讯作者：
Arnold, SJ