湖北农业科学 ›› 2023, Vol. 62 ›› Issue (6): 169-174.doi: 10.14088/j.cnki.issn0439-8114.2023.06.031

• 生物工程 • 上一篇    下一篇

水稻抗褐飞虱基因Bph43紧密连锁KASP标记开发与验证

邓钊1,2, 王凯1, 杜波3, 祝莉莉3, 杨远柱1,2, 陈荣智3,4   

  1. 1.袁隆平农业高科技股份有限公司农业农村部南方水稻品种创制重点实验室/抗病虫水稻育种湖南省工程实验室,长沙 410128;
    2.湖南农业大学农学院,长沙 410128;
    3.武汉大学生命科学学院/杂交水稻国家重点实验室,武汉 430072;
    4.武汉大学深圳研究院,广东 深圳 518057
  • 收稿日期:2022-05-20 出版日期:2023-06-25 发布日期:2023-07-18
  • 通讯作者: 杨远柱(1962-),男,湖南怀化人,研究员,主要从事杂交水稻育种研究,(电话)13607442126(电子信箱)yzhuyah@163.com。
  • 作者简介:邓钊(1989-),男,湖南邵阳人,在读博士研究生,研究方向为水稻分子遗传育种,(电话)18508420628(电子信箱)470571084@qq.com;陈荣智(1976-),男,重庆人,副教授,博士,主要从事水稻抗褐飞虱基因发掘与利用研究,(电话)15972013776(电子信箱)rzchen@whu.edu.cn。
  • 基金资助:
    深圳市基础研究项目(JCYJ20180302173435080)

Development and validation of a tightly linked KASP marker for the rice brown planthopper resistance gene Bph43

DENG Zhao1,2, WANG Kai1, DU Bo3, ZHU Li-li3, YANG Yuan-zhu1,2, CHEN Rong-zhi3,4   

  1. 1. Key Laboratory of Southern Rice Innovat & Improvement Ministry of Agriculture and Rural Affairs/Hunan Engineering Laboratory for Disease and Pest Resistant Rice Breeding, Yuan Longping High-Tech Agriculture Co., Ltd.,Changsha 410128, China;
    2. College of Agriculture, Hunan Agriconomy University, Changsha 410128, China;
    3. School of Life Sciences/State Key Laboratory of Hybrid Rice,Wuhan University, Wuhan 430072, China;
    4. Shenzhen Research Institute, Wuhan University, Shenzhen 518057,Guangdong, China
  • Received:2022-05-20 Online:2023-06-25 Published:2023-07-18

摘要: 为促进Bph43基因在抗褐飞虱(Nilaparvata lugens)水稻品种选育中的应用,在前期Bph43精细定位的基础上,将Bph43基因供体亲本IRGC 8678进行重测序,通过与日本晴参考基因组以及3 000份水稻测序公共数据库资源进行SNP变异位点分析,设计开发出Bph43紧密连锁区间特异的KASP标记(K_11674982、K_11775428和K_11856768)。66份水稻自然群体及200份BC1F2代杂交后代的验证结果表明,开发的3个KASP标记是共显性标记,标记基因型分析结果与抗褐飞虱表型完全符合,能特异、准确地检测出水稻中是否含有Bph43基因。基于SNP位点开发的Bph43 KASP标记可用于发掘携带Bph43基因的新种质及抗褐飞虱分子标记辅助选择育种。

关键词: 水稻, 褐飞虱(Nilaparvata lugens), Bph43, KASP标记, 抗褐飞虱育种

Abstract: To promote the application of Bph43 in the breeding of rice varieties resistant to brown planthopper,on the basis of fine mapping of Bph43 in the early stage, the Bph43 gene donor parent IRGC 8678 was resequenced. By conducting SNP mutation site analysis with the Japanese reference genome and 3 000 rice sequencing public database resources, the study designed and developed Bph43 tightly linked interval specific KASP markers (K_11674982, K_11775428, and K_11856768). The validation results of 66 natural populations of rice and 200 BC1F2 hybrid progeny showed that the three developed KASP markers were codominance markers, and the genotype analysis results of the markers were completely consistent with the phenotype of brown planthopper resistance, which could specifically and accurately detect whether there was Bph43 gene in rice. The Bph43 KASP marker developed based on SNP loci could be used to explore new germplasm carrying the Bph43 gene and molecular marker assisted selection breeding for resistance to brown planthopper.

Key words: rice, brown planthopper(Nilaparvata lugens), Bph43, KASP marker, breeding for resistance to brown planthopper

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