作 者 ：YANG Qin-Er
期 刊 ：植物分类学报 2001年 6期
Keywords:Aconitum L., Delphinium L., Chromosome, Karyotype evolution,
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.