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dc.creatorAngeles-Shim, Rosalyn
dc.date.accessioned2020-04-29T19:22:38Z
dc.date.available2020-04-29T19:22:38Z
dc.date.issued2020-02-21
dc.identifier.citationAngeles-Shim RB, Shim J, Vinarao RB, Lapis RS, Singleton JJ (2020) A novel locus from the wild allotetraploid rice species Oryza latifolia Desv. confers bacterial blight (Xanthomonas oryzae pv. oryzae) resistance in rice (O. sativa). PLoS ONE 15(2): e0229155. https://doi.org/10.1371/journal.pone.0229155en_US
dc.identifier.urihttps://hdl.handle.net/2346/85726
dc.identifier.urihttps://doi.org/10.1371/journal.pone.0229155
dc.description.abstractBacterial blight caused by Xanthomonas oryzae pv. oryzae (Xoo) is a major limiting factor to rice productivity worldwide. Genetic control through the identification of novel sources of bacterial blight resistance and their utilization in resistance breeding remains the most effective and economical strategy to manage the disease. Here we report the identification of a novel locus from the wild Oryza species, Oryza latifolia, conferring a race-specific resistance to Philippine Xoo race 9A (PXO339). The locus was identified from two introgression lines i.e. WH12-2252 and WH12-2256 that segregated from O. latifolia monosomic alien addition lines (MAALs). The discrete segregation ratio of susceptible and resistant phenotypes in the F2 (χ2 [3:1] = 0.22 at p>0.05) and F3 (χ2 [3:1] = 0.36 at p>0.05) populations indicates that PXO339 resistance in the MAAL-derived introgression lines (MDILs) is controlled by a single, recessive gene. Genotyping of a total of 216 F2, 1130 F3 and 288 F4 plants derived from crossing either of the MDILs with the recurrent parent used to generate the MAALs narrowed the candidate region to a 1,817 kb locus that extends from 10,425 to 12,266 kb in chromosome 12. Putative candidate genes that were identified by data mining and comparative sequence analysis can provide targets for further studies on mapping and cloning of the causal gene for PXO339 resistance in the MDILs. To our knowledge, this is the first report of a genetic locus from the allotetraploid wild rice, O. latifolia conferring race-specific resistance to bacterial blight.en_US
dc.language.isoengen_US
dc.publisherPLoSONEen_US
dc.subjectRiceen_US
dc.subjectOryza Sativa
dc.subjectWild Species
dc.subjectOryza latifolia
dc.subjectBacterial Blight
dc.subjectXanthomonas oryzae pv. oryzae
dc.subjectDisease Resistance
dc.titleA novel locus from the wild allotetraploid rice species Oryza latifolia Desv. confers bacterial blight (Xanthomonas oryzae pv. oryzae) resistance in rice (O. sativa)en_US
dc.typeArticleen_US
dc.creator.orcidhttps://orcid.org/0000-0003-0220-3488en_US


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