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《Pratacultural Science》 2008-01
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Analysis of genetic diversity within the population of buffalo grass by morphological traits and ISSR markers

LIU Li1,DENG Chun-ting2,BAO Man-zhu1(1.College of Horticulture and Forestry Sciences,Key Laboratory of Horticultural Plant Biology,Ministry of Education,Wuhan 430070,China;2.Huazhong Agricultural University,Wuhan 430070,China)  
The aim of this study was to analyse the genetic diversity by ISSR marker and morphological traits within population of 20 Buffalo grass(Büchloe dactyloides) accessions that selected from 102 individuals.Seven ISSR primers were selected from 50 ISSR primers,and 74(83.1%) polymorphic loci were detected out of 89 loci in total.It showed that the genetic polymorphism among population was high and the coefficient among each accessions ranged from 0.68 to 0.82.The genetic distance ranged from 0.17 to 0.42.The results indicated that individual selection was suitable in Buffalo grass breeding even within seedling population.Dendrogram obtained based on ISSR markers was not in accordance with that on morphologic characteristics,which suggested that not only morphological traits but also molecular genetic basis should be taken into account in selecting parents for Bufflo grass crossing.
【Fund】: 国家“863”课目资助(2004AA244050)
【CateGory Index】: S688.4
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