植物分类学报

• 研究论文 • 上一篇    下一篇

从叶绿体DNA trnL-F序列论双参属的归属问题

张文蘅,陈之端,陈虎彪,汤彦承   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-07-10 发布日期:2001-07-10
  • 通讯作者: 张文蘅

Phylogenetic relationships of the disputed genus Triplostegia based on trnL-F sequences

ZHANG Wen-Heng, CHEN Zhi-Duan, CHEN Hu-Biao, TANG Yan-Cheng   

  • Received:1900-01-01 Revised:1900-01-01 Online:2001-07-10 Published:2001-07-10
  • Contact: ZHANG Wen-Heng

摘要: 双参属T

Abstract: The phylogenetie relationships of Triplostegia Wall. ex DC., comprising two species of perennial herbs from southeastern Asia, have long been in dispute. This genus was placed in either Dipsacaceae or Valerianaceae or in a family of its own, Triplostegiaceae. In this paper, the chloro- plast DNA (cpDNA) trn L-F regions of 21 species in the Dipsacales s. l. (including Valerianaceae, Dipsacaceae, Triplostegia, Morina, Caprifoliaceae s. l. and Adoxaceae) and an outgroup Panax schin-seng Nees. were amplified and sequenced. The phylogenetic relationships among these 22 spe- cies were constructed based on trn L-F sequences. The results demonstrated that Valerianaceae, Dipsacaceae, Triplostegia, Morina and four genera from the Caprifoliaceae s. l. form a monophylet- ic group with a strong support (100% bootstrap). Triplostegia, a sister group to Dipsacaceae, is close enough to be placed in the Dipsacaceae as a subfamily. The traditional Caprifoliaceae s.l. are polyphyletic, and relationships of Morina among the groups within Dipsacales s. l. are uncertain. Key words Triplostegia; Caprifoliaceae s. l.; Morina; Dipsacales s. l.; trnL-F sequences; Sys-tematic position Potash arnicin locust ardennite.
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