Data from: Phylogenomic support for evolutionary relationships of New World direct-developing frogs (Anura: Terraranae)

Phylogenomic approaches have proven able to resolve difficult branches in the tree of life. New World direct-developing frogs (Terraranae) represent a large evolutionary radiation in which interrelationships at key points in the phylogeny have not been adequately determined, affecting evolutionary, biogeographic, and taxonomic interpretations. We employed anchored hybrid enrichment to generate a data set containing 389 loci and >600,000 nucleotide positions for 30 terraranan and several outgroup frog species encompassing all major lineages in the clade. Concatenated maximum likelihood and coalescent species-tree approaches recover nearly identical topologies with strong support for nearly all relationships in the tree. These results are similar to previous phylogenetic results but provide additional resolution at short internodes. Among taxa whose placement varied in previous analyses, Ceuthomantis is shown to be the sister taxon to all other terraranans, rather than deeply embedded within the radiation, and Strabomantidae is monophyletic rather than paraphyletic with respect to Craugastoridae. We present an updated taxonomy to reflect these results, and describe a new subfamily for the genus Hypodactylus.系统发育基因组学方法（phylogenomic approaches）已被证实可解决生命之树中难以解析的分支问题。新热带界直接发育蛙类（Terraranae）是一类大型演化辐射类群，其系统发育关键节点的亲缘关系迄今尚未得到充分阐明，这一局限会影响演化、生物地理学及分类学相关研究的解读。本研究采用锚定杂交富集（anchored hybrid enrichment）技术，为涵盖该演化支所有主要支系的30种Terraranae蛙类及若干外类群蛙类构建了包含389个基因座、超过60万个核苷酸位点的数据集。采用串联最大似然法与溯祖物种树法得到的系统发育拓扑结构几乎完全一致，且对系统树中绝大多数亲缘关系均提供了较强的支持度。本研究结果与既往系统发育研究结果大体相仿，但在短内分支节点上提供了更高的解析度。在既往分析中系统发育位置存在争议的类群中，Ceuthomantis被证实为其余所有Terraranae蛙类的姊妹群，而非深深嵌入该演化辐射类群内部；此外，相对于Craugastoridae，Strabomantidae为单系类群，而非并系类群。本研究基于上述结果提出了更新的分类系统，并为Hypodactylus属建立了一个新的亚科。