Genetics of Bacterial Blight Resistance in a Breeding Line of Rice
- 1 January 1984
- journal article
- research article
- Published by Scientific Societies in Phytopathology®
- Vol. 74 (7), 773-777
- https://doi.org/10.1094/phyto-74-773
Abstract
The genetics of resistance in rice breeding line IR1545-339 to strains of 4 races of Xanthomonas campestris pv. oryzae in the Philippines was studied. The analysis of F1 and F2 populations from the cross of IR1545-339 with susceptible cultivar TN1 demonstrated that recessive gene xa-5 conferred the high resistance of IR1545-339 to races 1, 2, and 3. The moderate resistance of IR1545-339 to a strain of race 4, which is characterized by slow lesion development, also apparently was governed by xa-5. Trisomic analysis revealed that xa-5 is located on chromosome 2 as designated as Nishimura.This publication has 4 references indexed in Scilit:
- Interaction ofXanthomonas campestrispv.oryzaeand a Resistant Rice CultivarPhytopathology®, 1982
- Variability ofXanthomonas oryzae: Specificity in Infection of Rice DifferentialsPhytopathology®, 1979
- Dominance Reversal of a Bacterial Blight Resistance Gene in Some Rice CultivarsPhytopathology®, 1978
- Genetic analysis of bacterial blight resistance in seventy-four cultivars of rice, Oryza sativa L.Theoretical and Applied Genetics, 1978