Zhang Xiufu, Marchant Adam, Wilson Karen L, Bruhl Jeremy J
Botany, University of New England, Armidale NSW 2351, Australia.
Mol Phylogenet Evol. 2004 May;31(2):647-57. doi: 10.1016/j.ympev.2003.09.004.
Within the tribe Schoeneae (Cyperaceae), the relationships between Carpha and its relatives have not been certain, and the limits and definition of Carpha have been controversial. Further, the relationships of species within Carpha have been unclear. In this study, cladistic analyses based on chloroplast trnL intron and trnL-trnF intergenic spacer sequence data were undertaken to estimate phylogenetic relationships in and around Carpha. This study found that Trianoptiles is sister to Carpha; Ptilothrix is sister to Cyathochaeta rather than to Carpha as suggested by some former authors; and Gymnoschoenus is distant from Carpha and its close relatives. The merging of Schoenoides back into Oreobolus is supported. The findings also revealed the non-monophyletic status of Costularia and of Schoenus, and indicated the phylogenetic relationships of species within Carpha.
在莎草科的Schoeneae族中，卡尔费草属（Carpha）与其近缘属之间的关系尚未明确，卡尔费草属的界限和定义一直存在争议。此外，卡尔费草属内物种之间的关系也不清楚。在本研究中，基于叶绿体trnL内含子和trnL-trnF基因间隔区序列数据进行了分支分析，以估计卡尔费草属及其近缘类群的系统发育关系。本研究发现，三肋草属（Trianoptiles）是卡尔费草属的姊妹属；羽芒草属（Ptilothrix）是杯苞草属（Cyathochaeta）的姊妹属，而不是像一些前人作者所认为的那样是卡尔费草属的姊妹属；裸茎草属（Gymnoschoenus）与卡尔费草属及其近缘属关系较远。支持将拟莎草属（Schoenoides）重新并入山莎属（Oreobolus）。研究结果还揭示了肋果莎属（Costularia）和赤箭莎属（Schoenus）的非单系地位，并表明了卡尔费草属内物种的系统发育关系。
