| 普通小麦籽粒黄色素含量的QTL分析 |
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| 引用本文： | 张立平,阎俊,夏先春,何中虎.普通小麦籽粒黄色素含量的QTL分析[J].作物学报,2006,32(1):41-45. |
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| 作者姓名： | 张立平 阎俊 夏先春 何中虎 |
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| 作者单位： | 中国农业科学院作物科学研究所/国家小麦改良中心，北京100081 |
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| 基金项目： | 引进国际先进农业科技计划(948计划);科技部科研项目 |
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| 摘 要： | 小麦面粉黄色度b*值是反映面粉颜色的重要指标，主要与籽粒黄色素含量有关。利用122对SSR引物、4对贮藏蛋白STS引物和10对AFLP引物组合，分析了中优9507´CA9632的71个DH系，构建了由173个位点组成的遗传连锁图，在小麦21个连锁群上覆盖2 881 cM。将该群体种植2年共计5个地点，测定籽粒黄色素和面粉黄色度b*值含量。采用复合区间作图法（CIM）进行了籽粒黄色素含量和面粉黄色度QTL分析。结果表明，面粉黄色度b*值的QTL位于染色体1DS、2DL、3A、4D、5D、6AL、6D和7AL上，其中7AL的QTL效应最大，贡献率为12.9%~37.6%；籽粒黄色素含量的QTL位于染色体2DL、3DL、4A、5A和7AL，其中7AL的QTL效应最大，贡献率为12.1%~33.9%。面粉黄色度b*值与籽粒黄色素含量共同的QTL位于7AL，与Xgwm264b紧密连锁，遗传距离分别为0~3.9 cM和0~0.9 cM。
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| 关 键 词： | 普通小麦 面粉黄色度 b*值 籽粒黄色素含量 分子标记 QTL分析 |
| 收稿时间： | 2004-12-31 |
| 修稿时间： | 2005-04-02 |
QTL Mapping for Kernel Yellow Pigment Content in Common Wheat |
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| ZHANG Li-Ping,YAN Jun,XIA Xian-Chun,HE Zhong-Hu,Mark W Sutherland.QTL Mapping for Kernel Yellow Pigment Content in Common Wheat[J].Acta Agronomica Sinica,2006,32(1):41-45. |
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| Authors: | ZHANG Li-Ping YAN Jun XIA Xian-Chun HE Zhong-Hu Mark W Sutherland |
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| Affiliation: | Institute of Crop Sciences / National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Beijing 100081 |
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| Abstract: | Flour yellowness b~* is a major criterion to estimate flour colour,which is basically determined by yellow pigment content in wheat grains.A doubled haploid(DH) population with 71 lines derived from a cross between Zhongyou 9507 with lower flour yellowness b~* and CA9632 with higher flour yellowness b~*,was sown for two years in 5 locations.A total of 173 loci including 122 SSR,4 STS of storage protein genes and 10 AFLP markers were used to construct a linkage map,covering 2 881 cM of whole genome at 21 linkage groups.With the method of composite interval mapping(CIM),8 putative major QTL of yellowness b~* were detected on chromosomes 1DS,2DL,3A,4D,5D,6AL,6D and 7AL(Table 2),and 5 putative QTL of yellow pigment content were detected on chromosome 2DL,3DL,4A,5A and 7AL(Table 3),respectively.The QTL on 7AL was common for yellowness b~* and yellow pigment content,accounting for 12.97.6% and 12.13.9% of the phenotypic variance across different environments,respectively,which was closely linked to Xgwm264b.The genetic distance between Xgwm264b and the QTL of flour yellowness b~* and grain yellow pigment on chromosome 7AL were 03.9 cM and 00.9 cM,respectively.It can be used as a molecular marker in wheat breeding program. |
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| Keywords: | Common wheat(Triticum aestivum L ) Flour yellowness b~* Kernel yellow pigment Molecular marker Quantitative trait loci(QTL) |
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