Genome-wide association mapping in rice MAGIC indica panel detects QTLs and genes for broad-spectrum resistance breeding against African bacterial blight

dc.contributor.authorOkello, Moses
dc.contributor.authorSsemakula, Mildred Ochwo
dc.contributor.authorLamo, Jimmy
dc.contributor.authorOnaga, Geoffrey
dc.contributor.authorOdong, Thomas L
dc.contributor.authorGeoffrey, Tusiime
dc.contributor.authorTukamuhabwa, Phinehas
dc.contributor.authorMukasa, Settumba B
dc.contributor.authorWasswa, Peter
dc.contributor.authorOgwal, Jonathan
dc.contributor.authorOliva, Ricardo
dc.date.accessioned2024-07-03T14:14:42Z
dc.date.available2024-07-03T14:14:42Z
dc.date.issued2024-03-30
dc.description.abstractRice (Oryza sativa) bacterial blight (BB) is a direct threat to production in Africa. The extent of damage on the continent is not known. We conducted a genome-wide association study (GWAS) to seek out Quantitative trait loci (QTL) that confer the broad-spectrum resistance (BSR) to rice Xanthomonas oryzae pv. oryzae in the rice Multiparent advanced generation intercross (MAGIC) population. The diverse genetic composition and high levels of recombination, are potential resources for the identification of QTL for BSR. Dealing with the everevolving Xoo requires identification of novel R gene and resistance quantitative trait loci (QTL). We conducted a genome-wide association study (GWAS) using 250 rice MAGIC indica panel to evaluate for resistance to three Xoo strains from Cote D'Ivoire, namely XooCIkor, XooCIgag and XooCIcii2 which are prevalent highly virulent pathotypes. Using the 3 K RG 4.8mio filtered SNP Dataset, a total of 3 QTL associated with BB resistance on chromosome 9, 6 and 5 were identified. The results of the GWAS identified novel loci that gives useful insight for more investigation and also validated known genes underlying resistance to virulent African strains of BB. Genetic donors identified in this will help plant breeders in improving and broadening resistance to BB.en_US
dc.identifier.citationOkello, M., Ssemakula, M. O., Lamo, J., Onaga, G., Odong, T. L., Geoffrey, T., ... & Oliva, R. Genome-Wide Association Mapping in Rice MAGIC indica panel detects QTLs and Genes for Broad-spectrum resistance breeding against African Bacterial Blight. ORYZA-An International Journal of Rice, 61(1). https://doi.org/10.35709/ory.2024.61.1.1en_US
dc.identifier.urihttps://dir.muni.ac.ug/handle/20.500.12260/653
dc.language.isoenen_US
dc.publisherORYZA-An International Journal of Riceen_US
dc.subjectAfricaen_US
dc.subjectBacterial blight (BB)en_US
dc.subjectBroad-spectrum resistance (BSR)en_US
dc.subjectMultiparent advanced generation intercross (MAGIC)en_US
dc.subjectQuantitative trait loci (QTL)en_US
dc.subjectXanthomonas oryzae pv. oryzaeen_US
dc.titleGenome-wide association mapping in rice MAGIC indica panel detects QTLs and genes for broad-spectrum resistance breeding against African bacterial blighten_US
dc.typeArticleen_US

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