Mapping a stable adult-plant stripe rust resistance QTL on chromosome 6AL in Chinese wheat landrace Yibinzhuermai

作     者：Mei Deng Li Long Yukun Cheng Fangjie Yao Fangnian Guan Yuqi Wang Hao Li Zhien Pu Wei Li Qiantao Jiang Yuming Wei Jian Ma Houyang Kang Pengfei Qi Jirui Wang Youliang Zheng Yunfeng Jiang Guoyue Chen Mei Deng;Li Long;Yukun Cheng;Fangjie Yao;Fangnian Guan;Yuqi Wang;Hao Li;Zhien Pu;Wei Li;Qiantao Jiang;Yuming Wei;Jian Ma;Houyang Kang;Pengfei Qi;Jirui Wang;Youliang Zheng;Yunfeng Jiang;Guoyue Chen

作者机构：State Key Laboratory of Crop Gene Exploitation and Utilization in Southwest ChinaWenjiangChengdu 611130SichuanChina Triticeae Research InstituteSichuan Agricultural UniversityWenjiangChengdu 611130SichuanChina College of AgronomySichuan Agricultural UniversityWenjiangChengdu 611130SichuanChina 

出 版 物：《The Crop Journal》 (作物学报（英文版）)

年 卷 期：2022年第10卷第4期

页      面：1111-1119页

核心收录：

学科分类：0710[理学-生物学] 09[农学] 0901[农学-作物学] 

基　　金：supported by grants from the National Key Research and Development Program of China(2016YFD0100100) the International Science and Technology Cooperation and Exchanges Programs of Science and Technology Department of Sichuan Province(2019YFH0063) the Applied Basic Research Programs of Sichuan Province(2021YJ0297) 

主　　题：Puccinia striiformis QTL mapping Single nucleotide polymorphism Yellow rust 

摘      要：Stripe rust,caused by Puccinia striiformis ***(Pst),is one of the most important diseases threatening the yield and stability of wheat production in China and many other *** and utilization of new genes for durable stripe rust resistance are important for ongoing control of this *** objectives of this study were to identify quantitative trait loci(QTL)associated with adult-plant stripe rust resistance in the Chinese wheat landrace Yibinzhuermai(YBZR)and to provide wheat breeders with new sources of potentially durable resistance.A total of 117 recombinant inbred lines(RILs)(F5:8)derived from a cross between YBZR and highly susceptible cultivar Taichung 29(TC29)were assessed for stripe rust severity in field experiments at Wenjiang in 2016 and 2017 and Chongzhou in 2016,2017,2018,and 2019 in Sichuan following inoculation with a mixture of current Pst *** RILs were genotyped using the Wheat55K single nucleotide polymorphism(SNP)*** QTL were identified on chromosome arms 6AL,5BL and ***-6AL and ***-7DS conferred major effects in all field environments,explaining 10.6%to 14.7%and 11.5%to 21.2%of phenotypic variation,*** QTL on 5BL and 7DS likely correspond to previously known QTL,whereas ***-6AL is probably *** analysis revealed that the resistance allele at ***-6AL was present in 2.8%of 324 Chinese wheat *** markers closely linked with ***-6AL were converted to kompetitive allele-specific PCR markers and validated in the RIL population and a subset of 92 wheat ***-6AL and its markers should be useful in breeding programs to improve the level and durability of stripe rust resistance.