Phylogenetic position of Wenchengia (Lamiaceae): A taxonomically enigmatic and critically endangered genus
Phylogenetic position of Wenchengia (Lamiaceae): A taxonomically enigmatic and critically endangered genus
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文城属（唇形科）的系统发育位置：分类学上神秘且极度濒危的属
DOI：
10.1002/tax.612010
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发表时间：
2012-04-01
期刊：
影响因子：
3.4
通讯作者：
Zhang, Dianxiang
中科院分区：
文献类型：
--
作者：
Li, Bo;Xu, Weixiang;Zhang, Dianxiang
文成木属单种属的系统位置一直存在争议。它被不同地分配到一个单型亚科Wenchengioideae，被视为一个亚科Eschericharioideae的成员，或建议与Lamioideae或筋骨草亚科。互叶文成木（Wenchengia alternifolia）模式产地的重新发现，为利用两个质体DNA区域（rbcL、ndhF）、形态学数据、解剖学和细胞学特征推断其系统发育位置提供了可能。无论是分子数据和分子和形态数据的组合建议一个密切的关系属Holmskioldia，Tinnea，和紫茎泽兰代表紫茎泽兰亚科组成的分支。这种关系也被支持的显着相似性之间的总体形态，解剖学和细胞学特征的文成属和其他属的岩藻亚科，这表明它应该是更合适的处理作为岩藻亚科的成员，而不是分配到一个单型亚科。
The phylogenetic position of the monotypic genus Wenchengia has long been controversial. It variously has been assigned to a monotypic subfamily Wenchengioideae, treated as a member of subfamily Scutellarioideae, or suggested to be related to Lamioideae or Ajugoideae. The recent rediscovery of Wenchengia alternifolia from its type locality provided an opportunity to infer its phylogenetic position using evidence from two plastid DNA regions (rbcL, ndhF), morphological data, and anatomical and cytological characters. Both the molecular data and a combination of the molecular and the morphological data suggested a close relationship of the genus to a clade consisting of Holmskioldia, Tinnea, and Scutellaria representing Scutellarioideae. This relationship is also supported by a striking similarity in gross morphological, anatomical, and cytological characters between Wenchengia and other genera of Scutellarioideae, suggesting that it should be more appropriate to treat the genus as a member of Scutellarioideae, rather than assigning it to a monotypic subfamily.