植物分类学报

• 研究论文 • 上一篇    下一篇

芍药属牡丹组的系统学研究——基于RAPD分析

邹喻苹,蔡美琳,王子平   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1999-05-10 发布日期:1999-05-10
  • 通讯作者: 邹喻苹

Systematic studies on Paeonia sect. Moutan DC. based on RAPD analysis

ZOU Yu-Ping, CAI Mei-Lin, WANG Zi-Ping   

  • Received:1900-01-01 Revised:1900-01-01 Online:1999-05-10 Published:1999-05-10
  • Contact: ZOU Yu-Ping

Abstract: Plants in Paeonia sect. Moutan DC., whose wild types are endemic to China, are  deciduous subshrubs. Taxonomic treatments of most species in this section have long been in  dispute. To address this question, both intraspecific and interspecific relationships of the  species in this section were analyzed using RAPD markers. The dendrogram constructed by  UPGMA showed that the accessions of the same species were always grouped together earlier  than those of different species. The intraspecific similarity coefficients ranged from 0.60 to  0.90, grouping precisely those species of the same subsection together. Hence, the seven  species under question can be well distinguished from each other. The similarity coefficient  between P. delavayi and P. ludlowii was 0.60, and they were clustered in a clade. The  similarity coefficients between P. jishanensis and the three species P. rockii, P. ostii, P.  qiui, and between P. jishanensis and P. decomposita were both 0.48. These five species  were clustered in another clade. These two clades corresponded well to Subsect. Delavayanae  and Subsect. Vaginatae. Our results support the taxonomic treatment of Sect. Moutan re- cently proposed by Hong (1998,1997). Potash arnicin locust ardennite.
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