WANG Jiu-zhen,WANG Dan-hua,MA Zhan-zhou,et al.Hitchhiking Effect and Responses Analysis about 100-Seed Weight of Wild Soybean Chromosome Segment Substitution Lines[J].Soybean Science,2015,34(06):950-956.[doi:10.11861/j.issn.1000-9841.2015.06.0950]
野生大豆染色体片段代换系百粒重的选择牵连效应及响应分析
- Title:
- Hitchhiking Effect and Responses Analysis about 100-Seed Weight of Wild Soybean Chromosome Segment Substitution Lines
- 文献标志码:
- A
- 摘要:
- 利用野生大豆导入系群体和多位点扫描分析方法研究了针对百粒重性状的选择牵连效应,找到与百粒重性状相关联的位点,并分析了这些位点在选择条件的响应。随机群体28.10%的位点出现偏分离(P<0.05),经百粒重选择后等位基因偏分离比例减少,偏分离程度加大。标记异常偏分离率缩小到4.13%和23.14%,卡方值变幅缩小至0~166.67和0.01~81.30。对随机群体和选择群体的供体片段导入频率,在P<0.05水平下进行卡方分析,定位到与百粒重相关的的12个位点。
- Abstract:
- The hitchhiking effects in the advanced wild soybean chromosome segment substitution lines with selection under 100-seed weight conditions were analyzed by scanning multiple molecular loci.The lociare connected with 100-seed weight and their response in selection condition were analysized.28.10% of the loci in random population were detected with segregation distortion(P<0.05), after selection in view of 100-seed weight, the segregation distortion of allelic genes was reduced but the degree of segregation distortion increased.The segregation distortion ratio reduced to 4.13% and 23.14%, the variation of chi-square reduced to 0-166.67 and 0.01-81.30. Twelve putative 100-seed weight related loci were obtained using chi-square test (P<0.05) by comparison of the introgressive frequency of alleles between random population and selected population.
参考文献/References:
[1]游光霞, 张学勇. 基于选择牵连效应的标记/性状关联分析方法简介[J]. 遗传, 2007, 29(7):881-888.(You G X, Zhang X Y.Identification of important genes by marker-trait association analysis based on hitchhiking mapping[J]. Hereditas, 2007, 29(7):881-888.)
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备注/Memo
基金项目:教育部新世纪优秀人才支持计划(NECT-1207-01);黑龙江省自然科学基金重点项目(ZD201213);国家现代农业产业技术体系(CARS-04-02A);黑龙江省博士后基金(LBH-Z12035);中国博士后基金(2012M520030);黑龙江省高校长江后备支持计划项目(2014CJHB004)。