齿蟾科（无尾目：新蛙亚目）足部肌肉的集中进化新特征，兼论对穴居的适应性

Concentrated evolutionary novelties in the foot musculature of Odontophrynidae (Anura: Neobatrachia), with comments on adaptations for burrowing.

作者信息

Blotto Boris L, Pereyra Martin O, Faivovich Julián, Dias Pedro Henrique Dos Santos, Grant Taran

机构信息

Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP 05508-090, Brazil. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"-Conicet, Buenos Aires, C1405DJR, Argentina. Coleção de Anfíbios, Museu de Zoologia, Universidade de São Paulo, São Paulo, SP 04263-000, Brazil..

出版信息

Zootaxa. 2017 May 2;4258(5):425-442. doi: 10.11646/zootaxa.4258.5.2.

DOI:10.11646/zootaxa.4258.5.2

PMID:28609904

Abstract

We studied the foot musculature of the fossorial family Odontophrynidae (composed of the genera Macrogenioglottus, Odontophrynus, and Proceratophrys) plus several outgroup taxa from Hyloidea and other burrowing taxa from across Anura. We found novel character-states supporting the monophyly of Odontophrynus, Proceratophrys, and Odontophrynus + Macrogenioglottus. The character-states observed in O. cultripes support conflicting phylogenetic positions within Odontophrynus. A comparison of some novel character-states with a diverse sample of burrowing taxa suggests that some modifications of the foot musculature might be involved in digging.

摘要

我们研究了掘土性的齿蟾科（由巨舌蟾属、齿蟾属和原角蟾属组成）的足部肌肉组织，以及来自雨蛙超科的几个外类群分类单元和来自无尾目其他掘土类群。我们发现了支持齿蟾属、原角蟾属以及齿蟾属+巨舌蟾属单系性的新特征状态。在具爪齿蟾中观察到的特征状态支持了齿蟾属内相互矛盾的系统发育位置。将一些新特征状态与不同的掘土类群样本进行比较表明，足部肌肉组织的一些改变可能与挖掘有关。