昆仑锦鸡儿(豆科)的遗传多样性研究  

Genetic variation of Caragana polourensis(Leguminosae)

作　　者：刘美华[1] 李忠超[1] 陈海山[1] 葛学军[1] 

机构地区：[1]中国科学院华南植物园,广东广州510650

出　　处：《广西植物》2005年第1期53-57,共5页Guihaia

基　　金：中国科学院知识创新工程重要方向性项目(KSCX2 SW 104);国家自然科学基金研究项目(30370282)

摘　　要：采用ISSR方法,对昆仑锦鸡儿及其近缘种吐鲁番锦鸡儿的遗传多样性进行检测。结果表明,两个种多态位点百分率分别为79.07%和41.86%,昆仑锦鸡儿遗传多样性水平明显高于吐鲁番锦鸡儿;两个种间的遗传距离为0.394 3;昆仑锦鸡儿居群间的遗传一致度较高(平均0.961 4),遗传分化很低(GST:0.083 6)。Inter-simple sequence repeat(ISSR)marker was used to detect genetic variation of 3 Caragana polourensis Franch populations and 1 C.turfanensis(Krassn.)Kom.population from Xinjiang. 86 bands were generated by 7 ISSR primers,of which 79.07% and 41.86% bands were polymorphic in C.polourensis and C.turfanensis,respectively. Higher level of genetic variation was revealed in C.polourensis than that of C.turfanensis. The average Nei’s genetic distance between these two species was 0.394 3.

关 键 词：昆仑锦鸡儿 吐鲁番锦鸡儿 遗传多样性 ISSR标记 豆科 ISSR 遗传距离 

分 类 号：Q949.751.9[生物学—植物学]