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Identification of a major QTL for Hessian fly resistance in wheat cultivar 'Chokwang'

文献类型： 外文期刊

作者： Zhang, Lirong 1 ; Xu, Yunfeng 2 ; Chen, Ming-Shun 4 ; Su, Zhenqi 2 ; Liu, Yang 2 ; Xu, Yuzhou 2 ; La, Guixiao 2 ; Bai, Guihua 2 ;

作者机构： 1.Hebei Agr Univ, Coll Plant Protect, Dept Plant Pathol, Baoding 071001, Hebei, Peoples R China

2.Kansas State Univ, Dept Agron, Manhattan, KS 66506 USA

3.Technol Innovat Ctr Biol Control Crop Dis & Insect, Baoding 071001, Hebei, Peoples R China

4.USDA ARS, Hard Winter Wheat Genet Res Unit, Manhattan, KS 66506 USA

5.China Agr Univ, State Key Lab Agrobiotechnol, Beijing 100193, Peoples R China

6.China Agr Univ, Key Lab Crop Heterosis & Utilizat MOE, Beijing 100193, Peoples R China

7.China Agr Univ, Beijing Key Lab Crop Genet Improvement, Beijing 100193, Peoples R China

8.Chinese Acad Trop Agr Sci, Inst South Subtrop Crops, Zhanjiang 524013, Guangdong, Peoples R China

9.Henan Acad Agr Sci, Ind Crop Res Inst, Zhengzhou 450002, Henan, Peoples R China

关键词： Wheat Hessian fly resistance; Mayetiola destructor; KASP; GBS

期刊名称：CROP JOURNAL （ 影响因子：4.647； 五年影响因子：5.781 ）

ISSN： 2095-5421

年卷期： 2022 年 10 卷 3 期

页码：

收录情况： SCI

摘要： The Hessian fly (HF, Mayetiola destructor) is one of the destructive pests of wheat (Triticum aestivum L.) worldwide. Resistant cultivars can effectively minimize wheat damage due to this insect pest. To identify new quantitative trait loci (QTL) for HF resistance, a population of recombinant inbred lines (RILs) was developed from a cross between the HF-resistant wheat cultivar 'Chokwang' and susceptible wheat 'Ning 7840', and phenotyped for responses to HF attack. A linkage map was constructed using 1147 single nucleotide polymorphism (SNP) markers generated from genotyping-by-sequencing (GBS). One major QTL, QHf.hwwg-6BS, for HF-resistance was identified on chromosome arm 6BS, which explained up to 84.0% of the phenotypic variation and was contributed by Chokwang. Two RILs showed recombination in the candidate interval of QHf.hwwg-6BS, which delimited QHf.hwwg-6BS to a 4.75 Mb physical interval between 6,028,601 bp and 10,779,424 bp on chromosome arm 6BS of IWGSC Chinese Spring reference genome RefSeq v2.0. Seven GBS-SNPs in the candidate interval were converted into Kompetitive allele specific polymerase chain reaction (KASP) markers. Two of them, KASP-6B112698 and KASP-6B7901215, were validated in a U.S. winter wheat panel. KASP-6B112698 was nearly diagnostic, thus can be used to screen QHf.hwwg-6BS and pyramid it with other resistance genes in breeding programs.(c) 2021 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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