Harrington Richard C, Near Thomas J
Department of Earth Sciences, University of Oxford, Oxford, UK.
Department of Ecology and Evolutionary Biology and Peabody Museum of Natural History, Yale University, New Haven, CT 06520, USA.
Mol Phylogenet Evol. 2015 Mar;84:158-65. doi: 10.1016/j.ympev.2015.01.002. Epub 2015 Jan 20.
Inference of evolutionary relationships among closely related darter species (Teleostei: Percidae) has traditionally proven challenging due to a lack of sufficient numbers of informative morphological characters or reliance on mtDNA sequences. These factors have contributed to longstanding uncertainty of the monophyly of many described taxonomic groups. Although multi-locus data are now available for most darter species, uncertainty has persisted regarding the relationships of some major lineages. Here, we investigate the relationships of darters classified in Goneaperca, a clade of 46 species, many of which are characterized by distinct nuptial displays and male-only parental care. Previous phylogenetic analyses of morphological and molecular data have failed to provide strong resolution of relationships among major Goneaperca subclades, and especially the monophyly of Catonotus. We apply coalescent and phylogenetic analyses to a dataset that includes intraspecific sampling for nearly all species of Goneaperca for 13 nuclear genes. Our coalescent species tree analyses resolved a strongly supported sister relationship between Boleosoma and a monophyletic Catonotus. Ancestor state reconstructions using the posterior distribution of these newly inferred phylogenies support a single origin of male-only parental care in the most recent common ancestor of Boleosoma and Catonotus.
由于缺乏足够数量的信息形态特征或依赖线粒体DNA序列，传统上证明推断亲缘关系密切的镖鲈物种（硬骨鱼纲：鲈科）之间的进化关系具有挑战性。这些因素导致许多已描述分类群的单系性长期存在不确定性。尽管现在大多数镖鲈物种都有多基因座数据，但一些主要谱系之间的关系仍存在不确定性。在这里，我们研究了分类在Goneaperca中的镖鲈之间的关系，Goneaperca是一个包含46个物种的进化枝，其中许多物种的特征是独特的求偶展示和仅由雄性承担亲代抚育。先前对形态和分子数据的系统发育分析未能提供Goneaperca主要亚进化枝之间关系的强分辨率，尤其是Catonotus的单系性。我们对一个数据集应用了溯祖和系统发育分析，该数据集包括对几乎所有Goneaperca物种的13个核基因进行种内抽样。我们的溯祖物种树分析解析出Boleosoma与单系的Catonotus之间有一个得到有力支持的姐妹关系。利用这些新推断系统发育的后验分布进行的祖先状态重建支持在Boleosoma和Catonotus的最近共同祖先中仅由雄性承担亲代抚育的单一起源。
