植物分类学报

• 研究论文 • 上一篇    下一篇

国产12种乌头属和18种翠雀属植物的细胞学研究

杨亲二   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-11-10 发布日期:2001-11-10
  • 通讯作者: 杨亲二

Cytologyof 12 species in Aconitum L. and of 18 species in Delphinium L. of the tribe Delphineae (Ranunculaceae) from China

YANG Qin-Er   

  • Received:1900-01-01 Revised:1900-01-01 Online:2001-11-10 Published:2001-11-10
  • Contact: YANG Qin-Er

Abstract: Cytology of 12 species in Aconitum L. and of 18 species in Delphinium L. of the tribe Delphineae (Ranunculaceae) from China have been investigated. Only A. crassiflorum is a tetra- ploid with the chromosome number of 2n = 32, and all the other Aconitum species studied are dip- loids with 2n = 16. In A. piepunense, up to six B-chromosomes were observed. All the Delphinium species are diploids with 2n = 16; their karyotypes are very similar among the species, and are dis- tinctly distinguishable from those of Aconitum species with respect to the chromosome size, chromo- some morphology and karyotype asymmetry. From a cytological view, Delphinium seems to be more advanced than Aconitum, as the karyotypes in Delphinium are more asymmetric than those in Aconi-tum.

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