北方农业学报 ›› 2021, Vol. 49 ›› Issue (5): 93-99.doi: 10.12190/j.issn.2096-1197.2021.05.13

• 分子生物学 • 上一篇    下一篇

赤霉病抗性基因Fhb1Fhb7在江苏省淮北小麦新品系中的分布研究

张善磊, 王卫军, 吕春华, 刘晓飞, 赖尚科, 崔小平   

  1. 江苏省农业科学院 宿迁农科所,江苏 宿迁 223800
  • 收稿日期:2021-08-27 发布日期:2022-01-06
  • 通讯作者: 崔小平(1974—),女,研究员,硕士,主要从事小麦遗传育种的研究工作。
  • 作者简介:张善磊(1990—),男,研究实习员,硕士,主要从事小麦遗传育种的研究工作。
  • 基金资助:
    宿迁市科技计划项目(K201915,L202001); 江苏省“333工程”培养资金项目(BRA2020235)

Distribution of fusarium head blight resistance genes Fhb1 and Fhb7 in novel wheat lines from Huaibei,Jiangsu Province

ZHANG Shanlei, WANG Weijun, LYU Chunhua, LIU Xiaofei, LAI Shangke, CUI Xiaoping   

  1. Suqian Institute of Agricultural Sciences,Jiangsu Academy of Agricultural Sciences,Suqian 223800,China
  • Received:2021-08-27 Published:2022-01-06

摘要: 【目的】 明确小麦抗赤霉病基因Fhb1Fhb7在江苏省淮北小麦中的分布情况,为抗赤霉病育种提供依据。【方法】 利用小麦赤霉病主效抗性基因Fhb1的诊断性分子标记和Fhb7的显性分子标记,对155份江苏省淮北小麦新品系进行基因型检测。【结果】 抗性基因Fhb1Fhb7在155份小麦新品系中均有分布,Fhb1基因的分布频率高于Fhb7。4种基因型中,fhb1/Fhb7基因组合没有出现;含有fhb1/fhb7基因组合的品系151份,占97.4%;含有Fhb1/fhb7基因组合的品系3份,占1.9%;同时含有2个抗性基因的Fhb1/Fhb7基因型品系只有1份,占0.7%。【结论】 Fhb1Fhb7基因在江苏省淮北现有小麦新品系中的分布较少。

关键词: 小麦, 赤霉病, 抗性基因, Fhb1, Fhb7

Abstract: 【Objective】 To clarify the distribution of fusarium head blight resistance genes Fhb1 and Fhb7 in Huaibei wheat,in Jiangsu Province. To provide a basis for breeding resistance lines to fusarium head blight. 【Methods】 In 155 novel wheat lines from Huaibei,the genotypes of diagnostic molecular markers Fhb1 and dominant molecular markers Fhb7 of wheat main fusarium head blight resistance genes were analysed. 【Results】 Resistance genes Fhb1 and Fhb7 were both distributed in the 155 novel wheat lines. The frequency of Fhb1 was higher than that of Fhb7. Among the 4 genotypes,fhb1/Fhb7 gene combination did not appear,151 lines containing fhb1/fhb7 gene combination,accounted for 97.4% of the total,3 lines containing Fhb1/fhb7 gene combination,accounted for 1.9%. There was only one line with Fhb1/Fhb7 genotype containing the two resistance genes,accounted for 0.7%. 【Conclusion】 The Fhb1 and Fhb7 genes were less distributed in the novel wheat lines in Huaibei,Jiangsu Province.

Key words: Wheat, Fusarium head blight, Resistance gene, Fhb1, Fhb7

中图分类号: 

  • S435.121