Aguado M Teresa, San Martín Guillermo, Siddall Mark E
Departamento de Biología (Zoología), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.
Division of Invertebrate Zoology, American Museum of Natural History, New York, NY 10024, USA.
Cladistics. 2012 Jun;28(3):234-250. doi: 10.1111/j.1096-0031.2011.00377.x. Epub 2011 Oct 21.
A large, combined phylogenetic analysis (including morphological and molecular data from 18S rDNA, 16S rDNA and cytochrome c oxidase subunit I), with the highest number of species and genera of Syllidae studied to date (213 terminals), is examined. The data were explored with different parameters and optimality criteria (parsimony, likelihood, and bayesian inference). The monophyly of Syllidae and most of the traditional subfamilies is supported. The subfamily Eusyllinae is polyphyletic, as currently delineated, but it is herein reorganized and its diagnosis modified to be a valid group. Additional well supported clades arise. The phylogenetic relationships of the well known and established genera, as well as several enigmatic genera (e.g. Anguillosyllis, Paraopisthosyllis and Parahaplosyllis), the position of which in syllid taxonomy was uncertain or dubious to date, are clarified. The results corroborate previous hypotheses about the evolution of the reproductive and brooding modes. Within Syllinae, the nature of the stolon is phylogenetically informative. The classification of the whole family is revised and discussed on the basis of this phylogenetic hypothesis. © The Willi Hennig Society 2011.
本文对一项大型的综合系统发育分析（包括来自18S rDNA、16S rDNA和细胞色素c氧化酶亚基I的形态学和分子数据）进行了研究，该分析涵盖了迄今为止研究的叶须虫科中数量最多的物种和属（213个终端分类单元）。研究人员使用了不同的参数和最优标准（简约法、似然法和贝叶斯推断）对数据进行了探索。叶须虫科以及大多数传统亚科的单系性得到了支持。目前所界定的真叶须虫亚科是多系的，但在此进行了重新组织，并修改了其诊断以使其成为一个有效的类群。此外，还出现了一些得到有力支持的分支。一些知名且已确立的属以及几个神秘属（如鳗叶须虫属、副后叶须虫属和副单叶须虫属）的系统发育关系得到了阐明，这些属在叶须虫分类学中的位置至今仍不确定或存在疑问。研究结果证实了先前关于生殖和育幼模式进化的假设。在叶须虫亚科中，匍匐茎的性质在系统发育上具有信息价值。基于这一系统发育假设，对整个科的分类进行了修订和讨论。© 威利·亨尼希协会2011年。
