Analysis on Genetic Structure of Spartina alterniflora Populations in China Based on EH277045-derived Sequence

作     者：吴娟子 王强 陈建群 

作者机构：南京大学生命科学学院江苏南京210093 江苏省农业科学院畜牧所江苏南京210014 

基　　金：Supported by National Natural Science Foundation of China(30900161) 

出 版 物：《Agricultural Science & Technology》 (农业科学与技术（英文版）)

年 卷 期：2011年第12卷第12期

页      码：1753-1757页

摘      要：[Objective] This study aimed to analyze the genetic structure of eight populations of Spartina alterniflora in China at the nuclear DNA level.[Method] The EH277045-derived sequences were amplified from 75 samples in 8 populations and directly *** diversity,haplotype diversity,the mean value of Nei＇s genetic distance,genetic differentiation index FST and other genetic parameters were calculated to estimate the genetic diversity and genetic differentiation of *** populations in China.[Result] 75 samples were divided into 25 haplotypes by 28 polymorphic *** high nucleotide diversity（π=0.011） and haplotype diversity（Hd=0.794） were *** mean value of Nei＇s genetic distance and genetic differentiation index FST among eight populations were 0.056 and 0.222,respectively,the Nei＇s genetic distance ranged from 0.000 to 0.189 and FST ranged from 0.000 to 0.444 between each pair of the eight *** result revealed that 79% and 21% of the total genetic variation was partitioned within and among *** populations,respectively.[Conclusion] At the nuclear DNA level,there were a relatively high level of genetic diversity and a relatively low level of genetic differentiation among *** populations in China,and the genetic diversity existed mainly within rather than among populations.

主 题 词：Spartina alterniflora Haplotype Genetic structure EH277045 

学科分类：09[农学] 0904[农学-动物医学类] 

D　O　I：10.3969/j.issn.1009-4229-B.2011.12.002

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