Zhou Jing, Wang Xinyue, Zhou Shilin, Niu Junmei, Yue Jiarui, Liu Zhenwen, Downie Stephen R
School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong New City, Kunming 650500, China.
College of Modern Biomedical Industry, Kunming Medical University, Kunming 650500, China.
Plant Divers. 2023 Nov 29;46(2):206-218. doi: 10.1016/j.pld.2023.11.002. eCollection 2024 Mar.
The East Asia (or ) clade was recognized in previous molecular phylogenetic investigations into the higher-level relationships of Apiaceae subfamily Apioideae. The composition of this clade, the phylogenetic relationships among its constituent taxa, and the placement of species previously determined to be problematic have yet to be resolved. Herein, nrDNA ITS sequences were obtained for 150 accessions of Apioideae, representing species whose distributions are in East Asia or genera having one or more species included within the East Asia clade. These data, along with published ITS sequences from other Apioideae (for 3678 accessions altogether), were subjected to maximum likelihood and Bayesian inference analyses. The results show that the East Asia clade contains representatives of 11 currently recognized genera: , , , , , , , , , , and . However, the latter seven genera have members falling outside of the East Asia clade, including the generic types of all except . Within the clade, the species comprising these seven genera are widely intermingled, greatly increasing confusion among relationships than previously realized. The problematic species is confirmed as falling within the East Asia clade, whereas allies with the generic type in tribe Pleurospermeae. is confirmed as a member of the genus , whereas the generic attributions of and remain unclear. Two species of ( and ) are transferred into the genus . This is the most comprehensive molecular phylogenetic investigation of the East Asia clade to date, and while the results increase systematic understanding of the clade, they also highlight the need for further studies of one of the most taxonomically intractable groups in Apioideae.
在先前对伞形科芹亚科高级别亲缘关系的分子系统发育研究中，东亚分支（或 ）已被确认。该分支的组成、其组成类群之间的系统发育关系，以及先前确定存在问题的物种的归属，均有待解决。在此，我们获得了150份芹亚科材料的nrDNA ITS序列，这些材料代表了分布于东亚的物种，或包含在东亚分支内有一个或多个物种的属。这些数据，连同其他芹亚科已发表的ITS序列（总共3678份材料），进行了最大似然法和贝叶斯推断分析。结果表明，东亚分支包含11个目前已确认属的代表： 、 、 、 、 、 、 、 、 、 、 和 。然而，后七个属中有一些成员落在东亚分支之外，包括除 之外所有属的模式种。在该分支内，包含这七个属的物种广泛混杂在一起，这比之前意识到的大大增加了关系的混乱程度。有问题的物种 被确认落在东亚分支内，而 与棱子芹族的模式属相关。 被确认为 属的成员，而 和 的属归属仍不明确。 的两个物种（ 和 ）被转移到 属。这是迄今为止对东亚分支最全面的分子系统发育研究，虽然结果增加了对该分支的系统理解，但也凸显了对芹亚科中分类学上最棘手的类群之一进行进一步研究的必要性。
