草业学报2016，Vol.25Issue(3)：86-95,10.DOI:10.11686/cyxb2015228
狗牙根品种（系）表型及分子遗传变异研究
The phenotypic traits and molecular genetic variation of Bermudagrass (Cynodon dactylon)cultivars and breeding lines
摘要
Abstract
Bermudagrass (Cynodon dactylon )is a perennial,warm-season turfgrass well known and widely used for different purposes throughout the world.In order to further clarify the characteristics and genetic basis of C.dactylon germplasm in China,this study performed a comparative study of the phenotypic traits and molec-ular genetics of 5 cultivars and 1 breeding line,as well as 1 cultivar introduced in China.The green stage and turf speed are 53 and 269 d for the breeding line ‘02011’,higher than the 5 cultivars.The differences between cultivars in terms of plant height,flag leaf,creeping stem,and inflorescence characteristics were highly signifi-cant (P <0.01).8 DUS (distinctness,uniformity and stability)characteristics (including stolon surface color, degrees of heading,color of surface blade,reproductive shoot cyanine glucoside color,growth habit,glume cy-anine glucoside color,glume tip cyanine glucoside color)differed among the tested cultivars to varying degrees. 167 and 316 bands were amplified for 18 pairs of primers by SRAP and SSR,of which 87.51% and 70.13%were polymorphic.SRAP and SSR showed that C.dactylon cultivars from the same geographical area could exhibit similar phenotypic traits and relatively close genetic similarities.关键词
狗牙根/表型变异/DUS 性状/遗传多样性Key words
Cynodon dactylon/phenotypic variation/distinctness,uniformity and stability (DUS)characters/genetic diversity引用本文复制引用
谢欢,蒋林峰,马洪平,张新全,刘伟,彭燕..狗牙根品种（系）表型及分子遗传变异研究[J].草业学报,2016,25(3):86-95,10.基金项目
四川省“十二五”饲草育种攻关项目（2011NZ0098-11）和现代农业产业技术体系建设专项资金（CARS-35-05）资助。 （）
