Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
School of Life Sciences, East China Normal University, Shanghai 200241, China.
Mol Phylogenet Evol. 2019 Oct;139:106542. doi: 10.1016/j.ympev.2019.106542. Epub 2019 Jun 20.
Goodyerinae are one of the most species-rich and widespread subtribes of Orchidaceae but notorious for their taxonomic difficulty. Here, a comprehensive molecular phylogenetic study of the subtribe is presented based on two nuclear (ITS, Xdh) and five plastid (matK, psaB, rbcL, trnL, trnL-F) regions. A total of 119 species were included representing all clades recovered by previous phylogenetic analyses as well as seven outgroups. Maximum parsimony, maximum likelihood and Bayesian inference methods were used to infer the phylogenetic relationships. The results show that the Goodyerinae subdivided into three major subdivisions and six groupings: Pachyplectron, Goodyera clade (including Goodyera procera, Microchilus subclade and Goodyera subclade) and Cheirostylis clade (including Gonatostylis, Cheirostylis subclade and Ludisia subclade). Four genera, Erythrodes, Goodyera, Myrmechis and Odontochilus, are not monophyletic. The results support Odontochilus s. l. to include Myrmechis and Kuhlhasseltia. The systematic positions of Goodyera procera and two isolated genera, Herpysma and Orchipedum, are difficult to determine.
好耶兰亚族是兰科中物种最丰富、分布最广泛的亚族之一，但因其分类困难而声名狼藉。本研究基于两个核基因（ITS、Xdh）和五个质体基因（matK、psaB、rbcL、trnL、trnL-F），对该亚族进行了全面的分子系统发育研究。共包括 119 个物种，代表了先前系统发育分析中恢复的所有进化枝以及 7 个外群。使用最大简约法、最大似然法和贝叶斯推断法推断系统发育关系。结果表明，好耶兰亚族分为三个主要分支和六个分组：Pachyplectron、Goodyera 进化枝（包括 Goodyera procera、Microchilus 亚组和 Goodyera 亚组）和 Cheirostylis 进化枝（包括 Gonatostylis、Cheirostylis 亚组和 Ludisia 亚组）。四个属 Erythrodes、Goodyera、Myrmechis 和 Odontochilus 不是单系的。结果支持将 Odontochilus s. l. 包括 Myrmechis 和 Kuhlhasseltia。Goodyera procera 和两个孤立属 Herpysma 和 Orchipedum 的系统发育位置难以确定。
