China Rice ›› 2024, Vol. 30 ›› Issue (4): 17-23.DOI: 10.3969/j.issn.1006-8082.2024.04.004

• Special Thesis & Basic Research • Previous Articles     Next Articles

Development of a Molecular Marker for Anti-ALS Inhibitor-like Herbicides and Its Applications

SANG Shifei1,2,#, SUN Xiaohan1,2,#, YAO Guoqin1,2, MA Tengyun1,2, ZHANG Yijing1,2, ZHENG Yangyang3, FENG Liuchun1,2, JI Shengdong1,2,*()   

  1. 1College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
    2Henan Crop Genetic Improvement and Germplasm Innovation Engineering Research Center, Xinxiang, Henan 453007, China
    3Xinxiang Huanong Seed Industry Co., Ltd, Xinxiang, Henan 453007, China
  • Received:2023-08-31 Online:2024-07-20 Published:2024-07-16
  • Contact: JI Shengdong
  • About author:First author contact:

    #Co-first auhtor;

抗ALS抑制剂类除草剂分子标记的开发及应用

桑世飞1,2,#, 孙晓涵1,2,#, 姚国琴1,2, 马腾云1,2, 章怡静1,2, 郑阳阳3, 丰柳春1,2, 姬生栋1,2,*()   

  1. 1河南师范大学 生命科学学院,河南 新乡 453007
    2河南省作物遗传改良与种质创新工程研究中心,河南 新乡453007
    3新乡市华农种业有限公司,河南 新乡 453007
  • 通讯作者: 姬生栋
  • 作者简介:第一联系人:

    #共同第一作者;

  • 基金资助:
    国家自然科学基金青年基金项目(32201823);新乡市重大科技专项(22ZD001);河南省科技攻关计划项目(212102110064)

Abstract:

Weeds seriously restrict rice production, and cultivating new varieties of rice with broad-spectrum herbicide resistance and acetyllactate synthase (ALS) inhibitors is one of an effective ways to deal with the harm of weeds in rice fields. The difference sites between the anti-ALS inhibitor herbicide Jinjing 818 and the sensitive herbicide Nipponbare ALS gene were identified, and specific molecular markers were developed. Herbicide spraying and molecular marker-assisted selection (MAS) were carried out on the hybrid offspring of Jinjing 818 and Jindao 372 with ALS-resistant genotypes as parents. Two pairs of molecular markers, 818ALSF/R and HDALSF/R were developed, which could quickly distinguish three genotypes of homozygous dominant, heterozygous and homozygous genotypes, and were consistent with the herbicide spraying results. Two excellent rice germplasm resource materials, 22S9 and 22S4, with excellent herbicide resistance, were bred. Germplasm resource materials with ALS herbicide resistance gene can be quickly screened out by MAS of hybrid offspring, and the screening efficiency in rice germplasm of anti-ALS inhibitor herbicides can be improved.

Key words: ALS herbicide, acetolactate synthase, rice, herbicide resistance

摘要:

杂草严重制约水稻生产,培育具有乙酰乳酸合成酶(acetolactate synthase,ALS)抑制剂的广谱抗除草剂水稻新品种是应对稻田杂草危害的有效途径之一。本研究鉴定了抗ALS抑制剂类除草剂金粳818与感除草剂日本晴ALS基因的差异位点,开发特异分子标记。对以携带ALS抗性基因型的金粳818、津稻372为亲本的杂交后代进行除草剂喷施和分子标记辅助选择。开发了818ALSF/R、HDALSF/R两对分子标记,可以快速区分纯合显性、杂合、纯合隐性3种基因型,且与除草剂喷施结果一致;选育得到22S9和22S4两份抗除草剂优异水稻种质资源材料。通过对杂交后代分子标记辅助选择可快速筛选出具有ALS除草剂抗性基因的种质资源材料,提高了在抗ALS抑制剂类除草剂水稻种质中的筛选效率。

关键词: ALS除草剂, 乙酰乳酸合成酶, 水稻, 除草剂抗性

CLC Number: