您好，欢迎访问湖北省农业科学院 机构知识库！
湖北省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Fine mapping of two recessive powdery mildew resistance genes from Aegilops tauschii accession CIae8

文献类型： 外文期刊

作者： Tang, Xiong 1 ; Dai, Fangxiu 1 ; Hao, Yongli 1 ; Chen, Yiming 1 ; Zhang, Jianpeng 1 ; Wang, Guoqing 1 ; Li, Xingyue 1 ; Peng, Xiaojin 1 ; Xu, Tao 1 ; Yuan, Chunxia 1 ; Sun, Li 1 ; Xiao, Jin 1 ; Wang, Haiyan 1 ; Shi, Wenqi 3 ; Yang, Lijun 3 ; Wang, Zongkuan 1 ; Wang, Xiue 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Agr, Collaborat Innovat Ctr Modern Crop Prod CIC MCP, State Key Lab Crop Genet & Germplasm Enhancement &, Nanjing 210095, Jiangsu, Peoples R China

2.Zhongshan Biol Breeding Lab, 50 Zhongling St, Nanjing 210014, Jiangsu, Peoples R China

3.Hubei Acad Agr Sci, Inst Plant Protect & Soil Sci, Hubei Key Lab Crop Dis, Insect Pests & Weeds Control, Wuhan 430064, Hubei, Peoples R China

期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.4； 五年影响因子：5.7 ）

ISSN： 0040-5752

年卷期： 2023 年 136 卷 9 期

页码：

收录情况： SCI

摘要： Wheat powdery mildew (Pm), one of the worldwide destructive fungal diseases, causes significant yield loss up to 30%. The identification of new Pm resistance genes will enrich the genetic diversity of wheat breeding for Pm resistance. Aegilops tauschii is the ancestor donor of sub-genome D of hexaploid wheat. It provides beneficial genes that can be easily transferred into wheat by producing synthetic hexaploid wheat followed by genetic recombination. We assessed the Pm resistance level of 35 Ae. tauschii accessions from different origins. Accession CIae8 exhibited high Pm resistance. Inheritance analysis and gene mapping were performed using F-2 and F-2:3 populations derived from the cross between CIae8 and a Pm susceptible accession PI574467. The Pm resistance of CIae8 was controlled by two independent recessive genes. Bulked segregate analysis using a 55 K SNP array revealed the SNPs were mainly enriched into genome regions, i.e. 2DS (13.5-20 Mb) and 7DS (4.0-15.5 Mb). The Pm resistance loci were named as pmAeCIae8_2DS and pmAeCIae8_7DS, respectively. By recombinant screening, we narrowed the pmAeCIae8_2DS into a 370-kb interval flanked by markers CINAU-AE7800 (14.89 Mb) and CINAU-AE20 (15.26 Mb), and narrowed the pmAeCIae8_7DS into a 260-kb interval flanked by markers CINAU-AE58 (4.72 Mb) and CINAU-AE25 (4.98 Mb). The molecular markers closely linked with the resistance loci were developed, and two synthesized hexaploid wheat (SHW) lines were produced. These laid the foundation for cloning of the two resistance loci and for transferring the resistance into common wheat.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：湖北省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台