草业科学2012，Vol.29Issue(11)：1698-1705,8.
30份野牛草种质的遗传多样性
A study on genetic diversity of Buchloe dactyloides with different geographical origin
摘要
Abstract
30 Buchloe dactyloides collected from different geographical origins were put into this research. The basic turf characters, including leafblade length, leafblade width, height, diameter, number of tillers, number of stolon, length of stolon inter node, length of stolon, leaf color, extent of leaf turning yellow were measured and the genetic diversity was analyzed using the ISSR technique. The following results were obtained: 1) The difference of leaf color among these germplasm was significant (P~0.05) , and the difference of leafblade length, leafblade width, height, diameter, length of stolon, number of stolon was very significant (P~0.01). 2) Seven primers produced 108 polymorphic bands, with an average of 15.6 bands per primer. The percentage of polymorphic bands in average was 82.6%. 3) The Nei's genetic simi- larity coefficient (GS) of the tested accessions ranged from 0. 546 to 0.88, which suggested that there was rich genetic diversity among the germplasm of B. dactyloides. 4)These accessions were clustered into five groups. Moreover, there was the positive correlation between the geographical distance and the genetic distance.关键词
野牛草/坪用性状/ISSR/遗传多样性Key words
Buchloe dactyloides/turf characters/ISSR/genetic diversity分类
农业科技引用本文复制引用
成凯凯,魏小兰,杜鹃,张蕴薇..30份野牛草种质的遗传多样性[J].草业科学,2012,29(11):1698-1705,8.基金项目
科技支撑 （）
973课题 （）
863课题 （）
国家现代牧草产业技术体系 （）
