Inheritance of resistance to bacterial blight in ten rice (oryza sativa l.) cultivars

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dc.creatorLuzi-Kihupi, A.
dc.creatorKhush, G.S.
dc.date.accessioned2017-12-18T06:14:34Z
dc.date.accessioned2025-08-05T07:24:22Z
dc.date.available2017-12-18T06:14:34Z
dc.date.created2017-12-18T06:14:34Z
dc.date.issued2000
dc.description.abstractTen rice cultivars from the International Rice Germplasm Centre originating from Bangladesh were analysedfor the~r genetics of resistance to bacterial blight. The test cultivars were selected on the basis of their high level ofresistance to races IV & VI ofXanthomonas oryzae pv. oryzae. The mode ofinheritance was studied by crossing the test cultivars with Taichung Native 1 (TNI) which is highly susceptible to the races 1,2,3;4 & 6 of X. Oryzae pv. oryzae. The genetic analysis revealed that the test cultivars have two recessive genes conferring resistance to races 1 (PX 061) and 6 (PX 079) of X. oryzae pv oryzae, respectively. The allelic relationship of genes conferring resistance with xa-S and xa-13 was studied in progenies derived from crosses between the cultivars and IRBBS and IRBB13 which are near isogenic lines carrying genes xa-S and xa-13 respectively. The Chi-square analysis of F2 populations revealed that resistance ilJ these cultivars to race 1 was conferred by xa-S. Resistance to race 6 was found to be conferred by another gene which was non-allelic to xa-13.
dc.identifier0856 668X
dc.identifierhttps://www.suaire.sua.ac.tz/handle/123456789/1917
dc.identifier.urihttp://repository.costech.or.tz/handle/20.500.14732/97496
dc.languageen
dc.subjectOryza sativa
dc.subjectRice
dc.subjectXanthomonas oryzae pv.
dc.subjectBacterial blight
dc.titleInheritance of resistance to bacterial blight in ten rice (oryza sativa l.) cultivars
dc.typeArticle

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