华北农学报 ›› 2017, Vol. 32 ›› Issue (1): 1-8. doi: 10.7668/hbnxb.2017.01.001

所属专题: 水稻 生物技术

• 论文 • 上一篇    下一篇

水稻垩白基因Chalk5功能标记的开发与应用

朱金燕1,2, 王晴晴3, 王军1,2, 范方军1,2, 李文奇1,2, 王芳权1,2, 王绪鹏4, 仲维功1,2, 杨杰1,2   

  1. 1. 江苏省农业科学院 粮食作物研究所, 国家水稻改良中心南京分中心, 江苏 南京 210014;
    2. 扬州大学 江苏省粮食作物现代产业技术协同创新中心, 江苏 扬州 225009;
    3. 苏州农业职业技术学院, 江苏 苏州 215008;
    4. 扬州大学 生物科学与技术学院, 江苏 扬州 225009
  • 收稿日期:2016-10-10 出版日期:2017-02-28
  • 通讯作者: 杨杰(1969-),男,四川南充人,研究员,博士,主要从事水稻遗传育种研究。
  • 作者简介:朱金燕(1983-),女,江苏南通人,副研究员,博士,主要从事水稻遗传育种研究。
  • 基金资助:
    国家自然科学基金项目(31400175);江苏省自然科学基金项目(BK20130725);江苏省现代农业研发项目(BE2015355);江苏科技成果转化资金(BA2014134);公益性行业科研专项(201303102);扬州市农业前瞻性研究项目(YZ2014165)

Development and Application of Two Functional Markers for Grain Chalkiness Gene Chalk5 in Rice

ZHU Jinyan1,2, WANG Qingqing3, WANG Jun1,2, FAN Fangjun1,2, LI Wenqi1,2, WANG Fangquan1,2, WANG Xupeng4, ZHONG Weigong1,2, YANG Jie1,2   

  1. 1. Institute of Food Crops, Jiangsu Provine Academy of Agricultural Sciences, Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing 210014, China;
    2. Jiangsu Co-innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China;
    3. Suzhou Polytechnic Institute of Agriculture, Suzhou 215008, China;
    4. College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
  • Received:2016-10-10 Published:2017-02-28

摘要: 水稻垩白是衡量水稻外观品质优劣的重要指标之一,降低稻米的垩白是培育优质水稻品种的前提。Chalk5是一个能显著降低稻米垩白从而提高稻米外观品质的主效基因。为提高垩白基因Chalk5在育种中的选择效率,在前人克隆的基础上,根据其启动子区域存在的2个功能突变位点,分别设计等位基因特异PCR(ARMS-PCR)引物,最终筛选出2对Chalk5基因的功能标记Chalk12、NChalk12和Chalk22、NChalk22,通过PCR产物测序的方法对这2对标记的检查结果进行了验证,说明Chalk12、NChalk12和Chalk22、NChalk22可以准确鉴定出Chalk5的不同基因型。利用该标记对不同来源的43份籼稻资源、江苏2007-2013年审定的65份粳稻品种和太湖流域179份粳稻地方资源进行了Chalk5基因型检测,筛选到携带chalk5低垩白率等位基因的籼稻资源20份,太湖流域粳稻地方资源仅8份,其余259份粳型资源中均不携带chalk5低垩白率等位基因,这也说明chalk5主要分布在籼型水稻资源中,在粳型资源中分布很少。

关键词: 水稻, 垩白, Chalk5, 等位基因特异PCR, 功能标记Q78

Abstract: Grain chalkiness is one of the important indicators to evaluate the quality of rice appearance. Reducing grain chalkiness is the basis for high quality rice breeding. Chalk5 is a major quantitative trait locus which has been cloned and can influence grain chalkiness. In order to increase the selection efficiency of Chalk5 in breeding, six pairs of amplification refractory mutation system PCR (ARMS-PCR) primers had been designed basing on two functional mutations in promoter region. Finally, two pairs of functional markers,Chalk12/NChalk12 and Chalk22/NChalk22 had been selected out. The sequenced results of target region were consisted with the PCR results which verified the detection accuracy of the newly designed markers. Chalk12/NChalk12 and Chalk22/NChalk22 were employed to genotype 43 indica rice varieties, 65 japonica varieties certificated in Jiangsu from 2007 to 2013, and 179 local japonica cultivars from Taihu Basin. The results showed that only 20 indica rice varieties and 8 local japonica cultivars from Taihu Basin carried chalk5 gene, while the other 259 rice varieties carried Chalk5 gene. All these indicated that chalk5 mainly existing in indica germplasm.

Key words: Rice, Chalkiness, Chalk5, Amplification refractory mutation system PCR, Functional marker

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引用本文

朱金燕, 王晴晴, 王军, 范方军, 李文奇, 王芳权, 王绪鹏, 仲维功, 杨杰. 水稻垩白基因Chalk5功能标记的开发与应用[J]. 华北农学报, 2017, 32(1): 1-8. doi: 10.7668/hbnxb.2017.01.001.

ZHU Jinyan, WANG Qingqing, WANG Jun, FAN Fangjun, LI Wenqi, WANG Fangquan, WANG Xupeng, ZHONG Weigong, YANG Jie. Development and Application of Two Functional Markers for Grain Chalkiness Gene Chalk5 in Rice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(1): 1-8. doi: 10.7668/hbnxb.2017.01.001.

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