CHEN Qiang,YAN Long,LEI Ya-kun,et al.QTL Mapping of Seed Amino Acids Content in Soybean[J].Soybean Science,2015,34(04):597-600,629.[doi:10.11861/j.issn.1000-9841.2015.04.0597]
大豆籽粒氨基酸含量的QTL分析
- Title:
- QTL Mapping of Seed Amino Acids Content in Soybean
- Keywords:
- Soybean; RIL; Amino acid content; QTL
- 文献标志码:
- A
- 摘要:
- 以“冀豆12×黑豆”构建的包含186个家系的F8代重组自交系(RIL)群体为材料,分析16种氨基酸含量,采用性状-标记间单向因素方差分析法(ANOVA)、复合区间作图法(CIM)和完备区间作图法(ICIM)对各氨基酸含量的相关QTL进行检测。结果表明:群体中各性状表型均呈现连续性正态分布并超亲分离。3种方法共检测到谷氨酸、精氨酸、丝氨酸、丙氨酸、苯丙氨酸、异亮氨酸、天冬氨酸和赖氨酸含量相关的14个QTL,分布于B1、D1a、D1b、H、I、J和K连锁群中,贡献率为4.91%~17.02%。其中完备区间作图法检测到的苯丙氨酸含量相关QTL qPhe201贡献率最大为17.02%,增效基因来自于黑豆,并且在该标记区间内利用复合区间作图法同时检测到与天冬氨酸、谷氨酸和赖氨酸含量相关的QTL,分别为qAsp20、qGlu20、qLys20。位于B1连锁群中精氨酸含量相关的QTL qArg11在性状-标记间单向方差分析和ICIM两方法中同时检测到,在ICIM中检测到其贡献率为11.79 %,增效基因来自于冀豆12。
- Abstract:
- A cross of Jidou 12 and Heidou was made to construct a recombinant inbred line of F8 population which has 186 progenies as the experimental material.Correlation between 16 amino acid content were analysis in Shijiazhuang environment ANOVA, CIM and ICIM were used to identify quantitative trait loci The results showed that the distribution of 16 traits was continuous and normal distribution Fourteen QTL were detected across three method about glutamic acid, arginine, serine, alanine, phenylalanine, isoleucine, aspartic acid and lysine, distributed at B1, D1a, D1b, H, I, J and K linkage group, contribution rate from 4.91% to 17.02% qPhe201 had the highest contribution rate (17.02%), detected by ICIM,favorable alleles originate from Heidou There were three QTL qAsp20,qGlu20 and qLys20 detected by CIM in the same marker interval with qPhe201 qArg11 was detected by ANOVA and ICIM, contribution rate was 11.79%, favorable alleles originate from Jidou 12 These results provide a theoretical basis for markerassisted breeding and fine mapping
参考文献/References:
[1]JPF D’Mello Amino Acids in Animal Nutrition[M](2nd?ed) Cambridge:CABI Publishing, 2003:157-168, 223-235
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备注/Memo
基金项目:国家现代农业产业技术体系(CARS-004-PS06);国家高技术研究发展计划“863计划”(2012AA101106);河北省科技支撑计划(14226309D)。