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

YANG Qin-Er

doi:10.7523/j.issn.2095-6134.2001.6.002

Journal of University of Chinese Academy of Sciences >

2001 , Vol. 39 >Issue 6: 502 - 514

DOI: https://doi.org/10.7523/j.issn.2095-6134.2001.6.002

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

YANG Qin-Er

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Received date: 1900-01-01

Revised date: 1900-01-01

Online published: 2001-11-10

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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.

Key words： Aconitum L.; Delphinium L.; Chromosome; Karyotype evolution

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YANG Qin-Er . Cytologyof 12 species in Aconitum L. and of 18 species in Delphinium L. of the tribe Delphineae (Ranunculaceae) from China[J]. Journal of University of Chinese Academy of Sciences, 2001 , 39(6) : 502 -514 . DOI: 10.7523/j.issn.2095-6134.2001.6.002

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