| 不同生态环境下稻米淀粉RVA谱特征值的QTL定位分析 |
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| 引用本文： | 杨亚春,倪大虎,宋丰顺,李莉,陆徐忠,李泽福,杨剑波.不同生态环境下稻米淀粉RVA谱特征值的QTL定位分析[J].作物学报,2012,38(2):264-274. |
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| 作者姓名： | 杨亚春 倪大虎 宋丰顺 李莉 陆徐忠 李泽福 杨剑波 |
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| 作者单位： | 安徽省农业科学院水稻研究所, 安徽合肥230031 |
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| 基金项目： | 国家转基因生物新品种培育重大专项(2009ZX08001-13B);国家自然科学基金项目(31071401);国际合作项目(2008DFA31840)资助 |
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| 摘 要： | 利用2个直链淀粉含量相似的水稻品种93-11和日本晴为亲本, 采取单粒传法创建由190个家系组成的重组自交系群体, 并构建了包含202个SSR、CAPs和STS标记的遗传连锁图谱。采用复合区间作图法, 在3个不同生态环境下(陵水、合肥和怀远)对RVA谱特征值(峰值黏度、热浆黏度、崩解值、冷胶黏度、消减值、峰值时间、起浆温度和回复值)的8个特征性状进行了定位分析。共定位到57个QTL, 单个性状QTL数目在1~14个之间, 说明RVA谱特征值是多基因控制的数量性状。13个QTL在3个不同环境中被2次或3次检测到, 其中qCPV-3、qCPV-10b、qSBV-10b、qCSV-3b、qCSV-10b(贡献率分别为, 26.9%、29.5%、29.7%、25.2%、28.3%)被3次检测到, 稳定性较高。16个QTL具有一因多效性, 单个QTL位点控制的性状一般在2~6个之间, 第10染色体RM25032~RM1375区段控制峰值黏度、热浆黏度、冷胶黏度、消减值、峰值时间和回复值等6个性状。
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| 关 键 词： | 水稻 RVA谱特征值 数量性状 QTL稳定性 QTL多效性 |
| 收稿时间： | 2011-05-25 |
Identification of QTL for Rice Starch RVA Profile Properties under Different Ecological Sites |
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| YANG Ya-Chun,NI Da-Hu,SONG Feng-Shun,LI Li,LU Xu-Zhong,LI Ze-Fu,and YANG Jian-Bo.Identification of QTL for Rice Starch RVA Profile Properties under Different Ecological Sites[J].Acta Agronomica Sinica,2012,38(2):264-274. |
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| Authors: | YANG Ya-Chun NI Da-Hu SONG Feng-Shun LI Li LU Xu-Zhong LI Ze-Fu and YANG Jian-Bo |
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| Institution: | Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, China |
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| Abstract: | Two rice varieties with similar apparent amylose content,Nipponbare(japonica) and 9311(indica),were used as par-ents to establish a recombinant inbred line population consisting of 190 lines using single seed descent method.The genetic link-age map was constructed with 202 SSR,CAPs,and STS markers.Quantitative trait loci(QTLs) were identified for eight rice starch RVA profile properties including peak paste viscosity(PKV),hot paste viscosity(HPV),cool paste viscosity(CPV),break-down viscosity(BDV),setback viscosity(SBV),consistence viscosity(CSV),peaktime(PeT),pasting temperature(PaT) by composite interval mapping method in three different ecological sites(Lingshui,Hefei,and Huaiyuan).A total of 57 QTLs were identified,with 1 to 14 for each trait,indicating that rice starch RVA profile properties were controlled by multiple genes.Thirteen stable QTLs were detected at two or three sites,among which qCPV-3,qCPV-10b,qSBV-10b,qCSV-3b,and qCSV-10b(explain-ing,26.9%,29.5%,29.7%,25.2%,and 28.3% of variance) were detected in all the three sites.Sixteen QTLs were found to have pleiotropy with a single QTL controlling 2-6 traits(RVA profile properties).The interval RM25032-RM1375 on chromosome 10 harbored QTLs for six traits(PKV,HPV,CPV,SBV,PaT,and CSV). |
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| Keywords: | Rice RVA profile properties Quantitative trait locus QTL stability QTL pleiotropy |
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