Genome wide linkage mapping for black point resistance in a recombinant inbred line population of Zhongmai 578 and Jimai 22

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cg.contributor.affiliationChinese Academy of Agricultural Sciences
cg.contributor.affiliationMinistry of Science and Technology
cg.contributor.affiliationInternational Maize and Wheat Improvement Center
cg.contributor.donorNational Natural Science Foundation of China
cg.contributor.donorChinese Academy of Agricultural Sciences
cg.contributor.donorNational Key Research and Development Program
cg.contributor.donorChina Association for Science and Technology
cg.contributor.programAcceleratorBreeding for Tomorrow
cg.creator.identifierawais rasheed: 0000-0003-2528-708X
cg.creator.identifierSHUANGHE CAO: 0000-0002-2905-0728
cg.creator.identifierxianchun xia: 0000-0003-2071-197X
cg.creator.identifierZhonghu He: 0000-0003-1384-3712
cg.creator.identifierJindong Liu: 0000-0002-5927-4845
cg.creator.identifierYong Zhang: 0000-0002-3669-3908
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1016/j.jia.2023.12.039
cg.isijournalISI Journal
cg.issn2095-3119
cg.issue9
cg.journalJournal of Integrative Agriculture
cg.reviewStatusPeer Review
cg.volume24
dc.contributor.authorChen, Tiantian
dc.contributor.authorLi, Lei
dc.contributor.authorLiu, Dan
dc.contributor.authorTian, Yubing
dc.contributor.authorLi, Lingli
dc.contributor.authorZeng, Jianq
dc.contributor.authorRasheed, Awais
dc.contributor.authorCao, Shuanghe
dc.contributor.authorXia, Xianchun
dc.contributor.authorHe, Zhonghu
dc.contributor.authorLiu, Jindong
dc.contributor.authorZhang, Yong
dc.date.accessioned2025-12-21T21:23:55Z
dc.date.available2025-12-21T21:23:55Z
dc.identifier.urihttps://hdl.handle.net/10568/179137
dc.titleGenome wide linkage mapping for black point resistance in a recombinant inbred line population of Zhongmai 578 and Jimai 22
dcterms.abstractBlack point is a black discoloration of the grain embryo that reduces the grain quality and commodity grade. Identifying the underlying genetic loci can facilitate the improvement of black point resistance in wheat. Here, 262 recombinant inbred lines (RILs) from the cross of Zhongmai 578/Jimai 22 were evaluated for their black point reactions in five environments. A high-density genetic linkage map of the RIL population was constructed with the wheat 50K single nucleotide polymorphism (SNP) array. Six stable QTLs for black point resistance were detected, QBp.caas-2A, QBp.caas-2B1, QBp.caas-2B2, QBp.caas-2D, QBp.caas-3A, and QBp.caas-5B, which explained 2.1-28.8% of the phenotypic variances. The resistance alleles of QBp.caas-2B1 and QBp.caas-2B2 were contributed by Zhongmai 578 while the others were from Jimai 22. QBp.caas-2B2, QBp.caas-2D and QBp.caas-3A overlapped with previously reported loci, whereas QBp.caas-2A, QBp.caas-2B1 and QBp.caas-5B are likely to be new. Five kompetitive allele-specific PCR (KASP) markers, Kasp_2A_BP, Kasp_2B1_BP, Kasp_2B2_BP, Kasp_3A_BP, and Kasp_5B_BP, were validated in a natural population of 165 cultivars. The findings of this study provide useful QTLs and molecular markers for the improvement of black point resistance in wheat through marker-assisted breeding.en
dcterms.accessRightsOpen Access
dcterms.available2025-08-19
dcterms.bibliographicCitationChen, T., Li, L., Liu, D., Tian, Y., Li, L., Zeng, J., Rasheed, A., Cao, S., Xia, X., He, Z., Liu, J., & Zhang, Y. (2025). Genome wide linkage mapping for black point resistance in a recombinant inbred line population of Zhongmai 578 and Jimai 22. Journal of Integrative Agriculture, 24(9), 3311-3321. https://doi.org/10.1016/j.jia.2023.12.039
dcterms.extent3311-3321
dcterms.hasVersionhttps://hdl.handle.net/10883/35913
dcterms.issued2025-09
dcterms.languageen
dcterms.licenseCC-BY-NC-ND-4.0
dcterms.publisherElsevier
dcterms.subjectcandidate genes
dcterms.subjecttriticum aestivum
dcterms.subjectpcr
dcterms.subjectquantitative trait loci
dcterms.typeJournal Article

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