Quantitative trait loci for Fusarium head blight resistance in wheat cultivars Yangmai 158 and Zhengmai 9023

作     者：Pingping Zhang Chenjin Guo Zhao Liu Amy Bernardo Hongxiang Maa Hongxiang Ma Peng Jiang Guicheng Song Guihua Bai Pingping Zhang;Chenjin Guo;Zhao Liu;Amy Bernardo;Hongxiang Ma;Peng Jiang;Guicheng Song;Guihua Bai

作者机构：Jiangsu Academy of Agricultural SciencesJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing 210014JiangsuChina Department of AgronomyKansas State UniversityManhattanKS 66506USA Hebei Agricultural UniversityBaoding 071001HebeiChina USDA-ARSHard Winter Wheat Genetics Research UnitManhattanKS 66506USA 

出 版 物：《The Crop Journal》 (作物学报（英文版）)

年 卷 期：2021年第9卷第1期

页      面：143-153页

核心收录：

学科分类：09[农学] 0904[农学-植物保护] 090401[农学-植物病理学] 090402[农学-农业昆虫与害虫防治] 

基　　金：supported partially by the US Wheat and Barley Scab Initiative,the National Research Initiative Competitive Grants(2017-67007-25939)from the National Institute of Food and Agriculture,U.S.Department of Agriculture the National Natural Science Foundation of China(31671690) the Natural Science Foundation of Jiangsu Province(BK20161375) the National Key Research and Development Program of China(2016YFD0100502) 

主　　题：QTL mapping FHB Yangmai 158 Zhengmai 9023 KASP 

摘      要：Fusarium head blight(FHB)is one of the prevalent fungal diseases of wheat *** new FHB resistance quantitative trait loci(QTL)in adapted wheat cultivars is a critical step for breeding new FHB-resistant *** this study,we developed a population of 236 F5:7 recombinant inbred lines(RILs)using two popular Chinese wheat cultivars,Yangmai 158 and Zhengmai 9023,with moderate FHB resistance to identify the QTL for FHB type II *** population was evaluated for percentage of symptomatic spikelets per spike(PSS)using single floret injection in repeated greenhouse *** PSSs were 33.2%for Yangmai 158 and 30.3%for Zhengmai 9023.A genetic linkage map of 1002 single nucleotide polymorphisms(SNPs)generated by genotyping-by-sequencing(GBS)was constructed for the RIL *** QTL were identified for FHB resistance,and three of them were repeatable in the both *** 9023 contributed the resistance allele at one repeatable QTL,designated as Qfhb.7D,whereas Yangmai 158 contributed the resistance alleles at the other two repeatable QTL,Qfhb.3AL and *** additional QTL,Qfhb.4AS was significant in the mean PSS,and Qfhb.2DL and Qfhb.7AS were significant in only one *** of each allele individually at the three repeatable QTL significantly changed ***.3AL,Qfhb.2DS,and Qfhb.7D explained 8.35%to 9.89%,5.13%to 7.43%,and 6.15%to 9.32%of the phenotypic variations,*** three repeatable QTL contributed by the two parents were additive and stacking the resistance alleles from all the three repeatable QTL showed the highest level of resistance in the current RIL *** SNPs in the QTL regions of Qfhb.3AL,Qfhb.2DS,and Qfhb.7D were converted into KBioscience competitive allele-specific PCR(KASP)*** KASP marker for Qfhb.3AL was validated in a panel of wheat cultivars from *** of these KASP markers could be useful for marker-assisted selection to stack these QTL.