ZHANG Ji-yu,GUO Jie,CHENG Feng-na,et al.Stability Analysis of QTL Associated for Seed Shape Traits in Soybean ContentAcross Different Generations[J].Soybean Science,2016,35(04):581-586.[doi:10.11861/j.issn.1000-9841.2016.04.0581]
不同世代间大豆粒形相关QTL 的稳定性分析
- Title:
- Stability Analysis of QTL Associated for Seed Shape Traits in Soybean ContentAcross Different Generations
- Keywords:
- Soybean; RILs; Seed Shape; QTL; Genetic Stability
- 分类号:
- S565. 1
- 文献标志码:
- A
- 摘要:
- 以东农46 和L-100 构建的重组自交系群体( RILs) 为试验材料,利用2013 和2014 年分别在哈尔滨、呼兰、阿城3 个地点共6 个环境的数据对不同世代的遗传群体粒形进行单环境QTL 分析及多环境联合检测。结果表明: 单环境QTL 分析中,检测到13 个与粒形相关的QTL,位于第5、9、12、15 及18 连锁群上,其中粒长QTL 2 个,表型变异贡献率为21. 61% ~ 26. 81%; 粒宽QTL 5 个,表型变异贡献率为7. 28% ~ 18. 38%; 粒厚QTL 6 个,表型变异贡献率为10. 19% ~ 18. 44%。位于Sat_122 ~ Satt052 标记区间的QTL 位点在粒长及粒厚中都被检测到,位于Sat_119 ~ Satt588、Satt192 ~ Satt568 及Sat_401 ~ Satt192 标记区间QTL 位点在粒宽及粒厚中同时被检测到,存在一因多效性。多环境联合分析中,共检测到15 个与粒形相关的QTL。并且有9 个QTL 位点在单环境及多环境联合检测中均被检测到,表明这些QTL 表达较为稳定。因此,本研究获得1 个粒长QTL( Sat_122 ~ Satt052) 、1 个粒宽QTL( Satt192 ~ Satt568) 及2 个粒厚QTL( Satt192 ~ Satt568,Sat_401 ~ Satt192) 为表现较好的稳定QTL。
- Abstract:
- A RILs population derived from a cross between Dongnong 46 and L-100 was used in the experiment. The differentgeneration populations were evaluated in three locations( Harbin,Hulan and Acheng) ,in 2013 and 2014 using single-enviromentQTL analysis and multi-enviroment joint analysis. The results showed that,thirteen QTLs were detected associated withseed shape in single-enviroment QTL analysis,located in 5,9,12,15,and 18 linkage group. Two QTLs were associatedwith seed length,explained 21. 61% - 26. 81% of the phenotypic variation. Five QTLs were associated with seed width,explained7. 28% - 18. 38% of the phenotypic variation. Six QTLs were associated with seed thick,explained 10. 19% -18. 44% of the phenotypic variation. The QTLs located in the marker interval of Sat_122 - Satt052 associated both seed lengthand seed thick. The QTLs located in the marker interval of Sat_119 - Satt588,Satt192 - Satt568 and Sat_401 - Satt192 associatedboth seed width and seed thick,showed pleiotropy. Fifteen QTLs were detected associated with seed shape in multi-enviromentjoint analysis. Nine QTLs were detected in both methods,showed genetic stability.
参考文献/References:
1] Hyten D L,Pantalone V R,Sams C E,et al. Seed quality QTL ina prominent soybean population[J]. Theoretical and Applied Genetics,2004,109: 552-561.
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备注/Memo
基金项目: 国家自然科学基金面上项目( 31471517) ; 黑龙江省教育厅科技项目( 10531012) ; 国家现代农业产业技术体系( CARS-04-PS04) ;国家“十二五”科技支撑计划( 2011BAD35B06,2013BAD20B04) 。第一作者简介: 张继雨( 1991-) ,女,硕士,主要从事大豆品质性状的分子标记研究。E-mail: 1306915460@ qq. com。通讯作者: 滕卫丽( 1972-) ,女,研究员,硕导,主要从事大豆遗传育种与生物技术研究。E-mail: twlneau@163. com。