摘要
本文进行了西洋参(PanaxquinquefoliusLinnC.AMcyer)根尖染色体的计数,并对其染色体核型进行了分析研究。结果表明,其染色体数目为48条。按Leven等的分类原则,其核型为2n=2x=20m+2bsm+2st,属于Stabbin核型的“2B”型。
A karyotype analysis of American ginseng with chromosomes in root tip cell was found to be 2n=48. The somatic complement showed a slight vairation in size, ie. the 2, 3, 4, 5, 6, 10, 11, 16, 18 and 19th pairs had median contromeres,the 1, 7, 8, 9, 12, 13, 14, 15, 17, 20, 21, 22 and 24 the pairs had submedian constrictions, the 23 pair had submedian constrictions, acording to the classification system, the karyotype formula of the species is K (2n)=2x=20m+2bsm+2st.
出处
《吉林农业大学学报》
CAS
CSCD
1994年第3期43-46,共4页
Journal of Jilin Agricultural University
基金
农业部85农01-03重点应用研究课题
关键词
西洋参
染色体
核型
American ginseng
chromosomes
karyotype