Mirande Juan Marcos
Unidad Ejecutora Lillo (UEL, Fundación Miguel Lillo-CONICET), San Miguel de Tucumán, 4000, Argentina.
Cladistics. 2017 Aug;33(4):333-350. doi: 10.1111/cla.12171. Epub 2016 Aug 11.
This study evaluates the phylogeny of ray-finned fishes (Actinopterygii) combining most available information (44 markers from nuclear and mitochondrial DNA and 274 morphological characters). The molecular partition of the dataset was produced through a pipeline (GB-to-TNT) that allows the fast building of large matrices from GenBank format. The analysed dataset has 8104 species, including representatives of all orders and 95% of the 475 families of Actinopterygii, making it the most diverse phylogenetic dataset analysed to date for this clade of fishes. Analysed morphological characters are features historically considered diagnostic for families or orders, which can be unequivocally coded from the literature. Analyses are by parsimony under several weighting schemes. General results agree with previous classifications, especially for groups with better gene sampling and those long thought (from morphological evidence) to be monophyletic. Many clades have low support and some orders are not recovered as monophyletic. Additional data and synthetic studies of homology are needed to obtain synapomorphies and diagnoses for most clades.
本研究结合了大多数可用信息(来自核DNA和线粒体DNA的44个标记以及274个形态特征)来评估硬骨鱼(辐鳍鱼纲)的系统发育。数据集的分子划分是通过一个流程(从GB格式转换为TNT格式)完成的,该流程能够快速从GenBank格式构建大型矩阵。分析的数据集包含8104个物种,包括所有目以及辐鳍鱼纲475个科中95%的代表物种,使其成为迄今为止针对该鱼类分支分析的最多样化的系统发育数据集。分析的形态特征是历史上被认为可用于科或目的诊断特征,这些特征可以从文献中明确编码。分析采用了几种加权方案下的简约法。总体结果与先前的分类一致,特别是对于那些基因采样较好以及长期以来(从形态学证据来看)被认为是单系的类群。许多分支的支持度较低,一些目没有被恢复为单系。需要更多的数据和同源性综合研究来获得大多数分支的共衍征和诊断特征。