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Genomic regions conferring resistance to multiple fungal pathogens in synthetic hexaploid wheat. Molecular Breeding

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Title Genomic regions conferring resistance to multiple fungal pathogens in synthetic hexaploid wheat. Molecular Breeding
 
Creator Jighly, Abdul-Qader
 
Contributor Alagu, Manickavelu
Makdis, Farid
Singh, Murari
Singh, Sukhwinder
Emebiri, Livinus C.
Ogbonnaya, Francis Chuks
 
Subject genotypic correlation
selection indices
Wheat
 
Description Fungal diseases are among the most devastating biotic stresses and often cause significant losses in wheat production worldwide. A set of 173 synthetic hexaploid wheat (SHW) characterized for resistance against fungal pathogens that cause leaf, stem and yellow rusts, yellow leaf spot, Septoria nodorum and crown rot were used in genome-wide association study (GWAS). Diversity Arrays Technology (DArT) and DArTSeq markers were employed for marker–trait association in which 74 markers associated with 35 quantitative trait loci (QTL) were found to be significantly linked with disease resistances using a unified mixed model (P = 10−3 to 10−5); Of these 15 QTL originated from D genome. Six markers on 1BL, 3BS, 4BL, 6B, and 6D conferred resistance to two diseases representing 10 of the 35 QTL. A further set of 147 SHW genotyped with DArT only markers validated 11 QTL detected in the previous 173 SHW. We also confirmed the presence of the gene Lr46/Yr29/Sr58/Pm39/Ltn2 on 1BL in the SHW germplasm. In addition, gene–gene interactions between significantly associated loci and all loci across the genome revealed five significant interactions at FDR
 
Date 2016-08-16
2017-01-15T09:39:56Z
2017-01-15T09:39:56Z
 
Type Journal Article
 
Identifier https://mel.cgiar.org/reporting/download/hash/jxbjeIXp
Abdul-Qader Jighly, Manickavelu Alagu, Farid Makdis, Murari Singh, Sukhwinder Singh, Livinus C. Emebiri, Francis Chuks Ogbonnaya. (16/8/2016). Genomic regions conferring resistance to multiple fungal pathogens in synthetic hexaploid wheat. Molecular Breeding. Molecular Breeding, 36 (9).
https://hdl.handle.net/20.500.11766/5491
Open access
 
Language en
 
Rights CC-BY-NC-4.0
 
Format PDF
 
Publisher Springer Verlag (Germany)
 
Source Molecular Breeding;36,(2016)