Macey J Robert
Department of Evolutionary Genomics, DOE Joint Genome Institute and Lawrence Berkeley National Laboratory, 2800 Mitchell Drive, Walnut Creek, CA 94598, USA.
Museum of Vertebrate Zoology, University of California, Berkeley, CA 94720, USA.
Cladistics. 2005 Apr;21(2):194-202. doi: 10.1111/j.1096-0031.2005.00054.x.
A new parsimony analysis of 27 complete mitochondrial genomic sequences is conducted to investigate the phylogenetic relationships of plethodontid salamanders. This analysis focuses on the amount of character conflict between phylogenetic trees recovered from newly conducted parsimony searches and the Bayesian and maximum likelihood topology reported by Mueller et al. (2004; PNAS, 101, 13820-13825). Strong support for Hemidactylium as the sister taxon to all other plethodontids is recovered from parsimony analyses. Plotting area relationships on the most parsimonious phylogenetic tree suggests that eastern North America is the origin of the family Plethodontidae supporting the "Out of Appalachia" hypothesis. A new taxonomy that recognizes clades recovered from phylogenetic analyses is proposed.
进行了一项新的简约分析，对27条完整的线粒体基因组序列进行研究，以探讨无肺螈科蝾螈的系统发育关系。该分析聚焦于新进行的简约搜索所得到的系统发育树与穆勒等人（2004年；《美国国家科学院院刊》，101卷，13820 - 13825页）报告的贝叶斯和最大似然拓扑结构之间的性状冲突量。从简约分析中得到有力支持，即半趾螈属是所有其他无肺螈科动物的姐妹分类单元。在最简约的系统发育树上绘制区域关系表明，北美东部是无肺螈科的起源地，支持“走出阿巴拉契亚”假说。提出了一种新的分类法，该分类法认可从系统发育分析中得到的进化枝。
