摘要
目的对长白山地区分布的关玉竹体细胞染色体计数,对其进行核形态学研究。方法采用常规压片法。结果关玉竹的染色体数目为2n=20,核型公式为K(2n)=2X=2sm(2SAT)+8sm+10m,属"2B"类型,核型不对称系数为61.71%。结论基于观察结果分析了关玉竹染色体对称程度、类型及染色体组成。关玉竹染色体的随体结构为首次报道。
Objective To study the karyomorphology of Polygonatum odoratum ( Mill. ) Druce. from Changbai mountain. Methods Conventional pressed slice method was employed. Results The chromosomal number of S. chinensis was 2n = 20, the karyotype belonged to "2B" and was formulated as K(2n) = 2X = 2st + 8sm + 10m, the asymmetry index was K% =61.71%. Conclusion Detailed analysis was consequently displayed on symmetrical degree, chromosomal type and compositions of P. odoratum. The chromosomal morphostructure of P. odoratum was reported for the first time.
出处
《时珍国医国药》
CAS
CSCD
北大核心
2009年第7期1619-1620,共2页
Lishizhen Medicine and Materia Medica Research
基金
辽宁省教育厅科技攻关基金项目(No.05L381)
关键词
关玉竹
染色体
核型分析
Polygonatum odoratum ( Mill. ) Druce
Chromosome
Karyotype analysis