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用SSR标记进行野生大豆耐碱基因定位及QTL分析
引用本文:李小威,董志敏,赵洪锟,张春宝,董英山.用SSR标记进行野生大豆耐碱基因定位及QTL分析[J].吉林农业科学,2010,35(3):15-17,56.
作者姓名:李小威  董志敏  赵洪锟  张春宝  董英山
作者单位:1. 吉林农业大学农学院,长春,130118
2. 吉林省农业科学院生物技术研究中心,长春,130033
3. 吉林省农业科学院生物技术研究中心,长春,130033;东北师范大学生命科学学院,长春,130024
4. 东北师范大学生命科学学院,长春,130024
基金项目:国家重点基础研究发展计划(973计划前期)资助项目,农业部生物资源保护与利用项目 
摘    要:以抗碱野生大豆Gs0001(♀)和碱敏感栽培大豆吉科豆1号(♂)的F2群体作为基因定位群体,通过BSA法(Bulked-segegant analysis,群分法),对大豆耐碱基因进行SSR分子标记定位。在分布于大豆20个连锁群的488对SSR引物中,筛选出7对与耐碱基因紧密连锁的标记,这7对标记位于G连锁群相近的区域。利用Mapmaker/EXP3.0分析,在最小似函数值LOD=14.0时,将耐碱基因定位于Satt298与Satt269之间,距离两个标记的遗传距离分别为1.3 cm和6.9 cm。此耐碱基因的贡献率是40.31%。

关 键 词:耐碱基因  BSA  栽培大豆  SSR  野生大豆

Genetic Mapping and QTL Analysis in Wild Soybean by SSR Markers
LI Xiao-wei,DONG Zhi-min,ZHAO Hong-kun,ZHANG Chun-bao,DONG Ying-shan.Genetic Mapping and QTL Analysis in Wild Soybean by SSR Markers[J].Jilin Agricultural Sciences,2010,35(3):15-17,56.
Authors:LI Xiao-wei  DONG Zhi-min  ZHAO Hong-kun  ZHANG Chun-bao  DONG Ying-shan
Abstract:Using F2 of alkali-tolerant wild soybean Gs0001(♀) and alkaline-sensitive cultivated soybean‘'Jikedou 1’(♂) as gene targeting groups,SSR Molecular Markers of soybean alkali-resistant genes were carried out by the BSA(Bulked-segegant analysis) method.In 488 pairs of SSR primers distributed in 20 linkage groups,7 pairs of markers closely linked with the alkali-resistant genes were screened out,which was near to G linkage group regions.Using Mapmaker/EXP3.0 analysis,the minimum function value LOD = 14.0,alkali-resistant gene was between Satt298 and Satt269.The genetic distances between the two markers were 1.3 cM and 6.9 cM,respectively.The alkali-resistant gene's contribution rate was 40.31%.
Keywords:BSA  SSR
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