Barrionuevo J Sebastián
División Herpetología, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" - CONICET, Ángel Gallardo 470, Buenos Aires, C1405DJR, Argentina.
Cladistics. 2017 Feb;33(1):41-68. doi: 10.1111/cla.12158. Epub 2016 Apr 14.
A phylogenetic hypothesis for the frogs of the genus Telmatobius that includes a comprehensive sample of the morphological and geographical variation is lacking. Obtaining such a hypothesis constitutes the main focus of this contribution. A phylogenetic matrix was generated based on 97 phenotypic characters and 56 terminals. A parsimony analysis of this matrix was performed with TNT. Telmatobius is found to be monophyletic and well supported by 11 synapomorphies. Although the consensus tree shows several polytomies, four main groups have been recovered. The well-supported T. verrucosus Group includes forest and sub-paramo species from Bolivia and Peru, and is the sister group of the remaining species. The T. bolivianus Group includes forest and inter-Andean valley species from Argentina and Bolivia but it is poorly supported. Two supported high-altitude groups have been recovered, the T. macrostomus Group from the Central Andes of Peru, and the T. marmoratus Group from the Altiplano-Puna Plateau of Argentina, Bolivia, Peru and Chile and its adjacent Pacific and Northern slopes. The synapomorphies proposed for Telmatobius are discussed as well as the evolution of some of these synapomorphies and other characters within the genus.
目前尚缺乏一个包含形态和地理变异全面样本的关于Telmatobius属蛙类的系统发育假说。获得这样一个假说构成了本论文的主要重点。基于97个表型特征和56个终端生成了一个系统发育矩阵。使用TNT对该矩阵进行了简约分析。结果发现Telmatobius属是单系的，并得到11个共衍征的有力支持。尽管合意树显示有几个多歧分支，但已识别出四个主要类群。得到有力支持的疣背蟾属群包括来自玻利维亚和秘鲁的森林及亚高山带物种，是其余物种的姐妹群。玻利维亚蟾属群包括来自阿根廷和玻利维亚的森林及安第斯山间谷地物种，但支持度较低。已识别出两个得到支持的高海拔类群，即来自秘鲁中部安第斯山脉的大口蟾属群，以及来自阿根廷、玻利维亚、秘鲁和智利的阿尔蒂普拉诺-普纳高原及其相邻太平洋和北坡的花斑蟾属群。文中讨论了为Telmatobius属提出的共衍征，以及该属内其中一些共衍征和其他特征的演化情况。
