沈农系列水稻高产品种及其衍生系的遗传结构分析

doi:10.3969/j.issn.1001-7216.2014.05.007

中国水稻科学 ›› 2014, Vol. 28 ›› Issue (5): 496-502.DOI: 10.3969/j.issn.1001-7216.2014.05.007

沈农系列水稻高产品种及其衍生系的遗传结构分析

杨贤莉,王嘉宇^*,刘丹,张玲,李晓楠,吕国依

沈阳农业大学水稻研究所/农业部东北水稻生物学与遗传育种重点实验室/北方超级粳稻育种教育部重点实验室，沈阳 110866；

收稿日期:2014-01-19 修回日期:2014-03-18 出版日期:2014-09-10 发布日期:2014-09-10
通讯作者: 王嘉宇*,
基金资助:
辽宁省高等学校优秀人才支持计划资助项目（UQ2013075）。

Structure Analysis of Highyielding Rice Varieties and Their Derived Lines Bred by Shenyang Agricultural University

YANG Xianli， WANG Jiayu^*， LIU Dan， ZHANG Ling， LI Xiaonan， LV Guoyi

Rice Research Institute/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/ Key Laboratory of Northern japonica Super Rice Breeding, Ministry of Education, Shenyang Agricultural University, Shenyang 110866, China；

Received:2014-01-19 Revised:2014-03-18 Online:2014-09-10 Published:2014-09-10
Contact: WANG Jiayu*，

摘要/Abstract

摘要： 以沈农265、沈农606、沈农9741、千重浪1号、沈农9903、沈农9816等6个高产品种及其衍生的570份品系为材料，通过对DEP1、GS5、qSW5、Gn1a、qGW8、GS3和GW2等 7个功能基因位点的检测来分析这些已经克隆的控制产量性状的基因在辽宁水稻育种中的应用情况；同时，利用籼粳特异性的InDel标记分析籼稻血缘含量对北方高产优质粳稻育种的贡献。结果表明，除了GW2外，其他6个功能基因位点均检测到等位基因的变异。576份材料中，DEP1、qSW5和qGW8 在沈农系列粳稻品种中被广泛利用。检测到467份材料含有DEP1基因，占总数的81.9%；550份材料含有qSW5基因，占965%；351份材料含有qGW8,占61.6%；而GS5、Gn1a以及GS3在育种中被利用得较少，仅在少数品系中被利用，比例分别为5.4%、0.7%和1.1%。籼粳特异性标记分析表明，54.0%的参试材料在32个位点上有一定籼型血缘引入，且第5染色体上存在的籼型位点较多，占该染色体的20.8%。

关键词: 功能基因, 遗传结构, 籼型位点频率

Abstract: Six highyield varieties (Shennong 265, Shennong 606, Shennong 9741, Qianchonglang 1, Shennong 9903, Shennong 9816) and 570 inbred lines were used as materials to analyze the utilization of seven cloned yieldrelated functional gene (DEP1, GS5, qSW5, Gn1a, qGW8, GS3 and GW2) and the contribution of indica blood in the japonica rice breeding of Liaoning Province. The results showed that allelic variations were detected from all of the functional gene loci except for GW2. The loci of DEP1, qSW5 and qGW8 were widely used in japonica rice breeding by the breeders at Shenyang Agricultural University. In the 570 inbred lines, 467 lines (82.13% of the lines) contained DEP1, 550 lines (96.5% of the lines) contained qSW5, and 351 lines (61.6% of the lines) contained qGW8. The functional alleles of GS5, Gn1a and GS3 were also present in a small number of lines, and the rates were 5.44%, 070% and 1.05%, respectively. The results of the analysis with 32 indicajaponica specific markers showed that indicajaponica differentiation on these sites existed in 54.0% of the lines. Most of the indica genetic loci were located on chromosome 5, with a percentage of 20.8%.

Key words: functional gene, genetic structure, indica genotype frequency

中图分类号:

杨贤莉,王嘉宇*,刘丹,张玲,李晓楠,吕国依 . 沈农系列水稻高产品种及其衍生系的遗传结构分析[J]. 中国水稻科学, 2014, 28(5): 496-502.

YANG Xianli， WANG Jiayu*， LIU Dan， ZHANG Ling， LI Xiaonan， LV Guoyi. Structure Analysis of Highyielding Rice Varieties and Their Derived Lines Bred by Shenyang Agricultural University[J]. Chinese Journal of Rice Science, 2014, 28(5): 496-502.

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沈农系列水稻高产品种及其衍生系的遗传结构分析

Structure Analysis of Highyielding Rice Varieties and Their Derived Lines Bred by Shenyang Agricultural University

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