欢迎访问中国科学院大学学报,今天是

中国科学院大学学报

• • 上一篇    下一篇

国产毛茛科升麻属四种植物的核形态研究,并略论升麻的细胞地理

杨亲二   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1999-09-10 发布日期:1999-09-10
  • 通讯作者: 杨亲二

Karyomorphology of four species in Cimicifuga (Ranunculaceae) from China, with some cytogeographical notes on C. foetida

YANG Qin-Er   

  • Received:1900-01-01 Revised:1900-01-01 Online:1999-09-10 Published:1999-09-10
  • Contact: YANG Qin-Er

摘要:

本文研究了国产四种升麻属植物(小升麻、单穗升麻、云南升麻、升麻及其变种毛叶升麻)的核
形态。除发现升麻在云南西北部地区有二倍体和四倍体两种细胞型存在外,其他类群都为二倍体。云南升麻和毛叶升麻的染色体数目和核型为首次报道。

关键词: 升麻属, 升麻, 核形态, 细胞地理

Abstract:

 In this paper, four species of the genus Cimicifuga L. from China(C. acerina,
C. simplex, C. yunnanensis, C. foetida var. foetida and C. foetida var. velutina )
were karyomorphologically investigated. All the taxa studied had the same chromosome num-
ber of 2n= 16 except for C. foetida var. foetida, in which a tetraploid cytotype was found
to occur in northwestern Yunnan. Their karyotypes are all presented. The chromosome
counts in C. yunnanensis and C. foetida var. velutina are reported here for the first time.

Key words: Cimicifuga, C.foetida, Karyomorphology, Cytogeography