草业学报2007，Vol.16Issue(2)：124-134,11.
中国东北羊草自然种群的扩增片段长度多态性研究
AFLP variations within and among natural populations of Leymus chinensis in the northeast of China
摘要
Abstract
Genetic variations within and among four Leymus chinensis populations were evaluated using AFLP (amplified fragment length polymorphisms) markers. Eight primer combinations amplified 489 AFLP bands ranging from 85 to 550 bp. The genetic diversity and averaged percentage of polymophic bands (PPB) of the four populations showed similar trends, i.e. W＞H＞D＞J. The result of UPGMA (unweighted pair group method with arithmetic mean) based on the matrix of genetic distance indicated that individuals of the same populations were clustered together and that longitudinal rather than latitudinal gene flow was more frequent among the four natural populations. Two possible methods of gene flow, i.e. wind-mediated dispersal of pollen and seed transport via migrating birds are discussed.关键词
遗传结构/羊草/AFLP/基因流Key words
genetic variations/Leymus chinensis/AFLP/gene flow分类
农业科技引用本文复制引用
梁宇,刁亚瑞,刘公社,刘杰..中国东北羊草自然种群的扩增片段长度多态性研究[J].草业学报,2007,16(2):124-134,11.基金项目
中国科学院知识创新工程项目(KSCX1-08-03) （KSCX1-08-03）
国家科技部重点项目(2001BA707B02)资助. （2001BA707B02）
