YAN Hai-bo,WANG Yan,ZHAO Lin,et al.QTL Analysis Associated with Protein and Oil Content in Soybean[J].Soybean Science,2016,35(02):228-233.[doi:10.11861/j.issn.1000-9841.2016.02.0228]
大豆蛋白和油分含量的QTL分析
- Title:
- QTL Analysis Associated with Protein and Oil Content in Soybean
- Keywords:
- Soybean; Quality trait; Recombinant inbred lines; QTL genetic map; Protein content; Oil content
- 文献标志码:
- A
- 摘要:
- 以东农47和 PI317334-B杂交衍生的136个F4∶8代重组自交系(RILs)为对象,对其蛋白和油分含量进行正态分布检验及分析,同时利用182个SSR标记构建遗传图谱,并定位分别与大豆蛋白和油分含量相关的QTL,为深入改良及培育优质的大豆新品种提供了重要依据。结果表明:RILs在蛋白与油分含量的表型上的变异系数较大,分离程度好,且基本上呈正态分布;共检测到9个QTL,其中与蛋白含量相关的QTL有3个,分别位于N、C1和B2染色体上的标记SSR03_0428、SSR04_1192和SSR14_1153附近,贡献率范围为7%~8%;与油分含量相关的QTL有6个,分别位于C2、B1、B2、D2、G和I染色体上的标记SSR06_1630、SSR11_0460、SSR14_0395、SSR17_0721、SSR18_0278和SSR20_0273附近,贡献率变化范围为7%~43%。
- Abstract:
- In this study, a F4∶8?population of 136 recombinant inbred lines (RILs) derived from soybean cultivars Dongnong 47 and PI317334-B was used to analyze normal distribution of protein and oil content, respectively. And a total of 182 SSR markers were used to construct linkage map and identify QTLs associated with protein and oil content respectively, in order to provide important basis for further soybean improving and quality breeding. The results showed that a high variation coefficient of each trait in RILs was found and belonged to basically normal distribution. A total of 9 QTLs were identified with the two quality traits. Three QTLs were associated with protein content on LG(linkage group) N, C1 and B2 linked with SSR mark SSR03_0428, SSR04_1192 and SSR14_1153, respectively, explained 7%-8% of phenotypic variation. Six QTLs associated with oil content were located on LG C2, B1, B2, D2, G and I linked with SSR mark SSR11_0460, SSR14_0395, SSR06_1630, SSR17_0721, SSR18_0278 and SSR20_0273, respectively, explained 7%-43% of phenotypic variation.
参考文献/References:
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备注/Memo
基金项目:国家重点基础研究发展计划“973计划”前期项目(2012CB126311);国家自然科学基金(31201227,31301339);国家“十二五”科技支撑计划(2011BAD35B06-1);现代农业产业技术体系(CARS-04-PS04); 中国博士后项目(20110491024);黑龙江省博士后项目(LBH11220,LBH-TZ1210);黑龙江省教育厅青年学术骨干项目(1252G014);黑龙江省教育厅新世纪优秀人才项目(1253-NCET-005);教育部博士点项目(20122325120012);东北农业大学博士后启动金项目(2012RCB11)。