作 者 ：Liao Liang, Xu Ling-Ling, Yang Di-Qing
期 刊 ：植物分类学报 1991年 2期
关键词：毛茛属染色体数目核型江西；
Keywords:Ranunculus, Chromosome number, Karyotype, Jiangxi,
Abstract:
The present paper reports the chromosome numbers and karyotypes of 5 species
in Ranunculus from Jiangxi. The result is shown in Table 1-2. The chromosome numbers of
R. ternatus Thunb. (2n=4x=32; 2n=2x=16=8m+2sm+6st) , R. polii Franch.
(2n = 2x = 16 = 8m+2sm+6st) and R. sieboldii Miq. (2n = 8x-1 = 63 = 15m+18sm+22st+8t) are
first reported. The essential points are as follows:
(1) The karyotypes of R. ternatus Thunb. and R. polii Franch. are rather similar, which
shows a close relationship between the two species.
(2) Polyploid complexes are common in Ranunculus.
(3) According to the taxonomical system of Wang Wen-cai, the karyotypes of the two
species investigated in Sect. Auricomus belong to “2A” of Stebbins; that of the only species in
Sect. Hecatonia belong to “2B‘; the karyotypes of the two species investigated in Sect.
Ranunculus belong to “3A” or “3B”. The relationships among the three sections from the
karyotype are basically consistent with those based on morphology.