Genetic Analysis of Resistance to Xanthomonas campestris pv. oryzae (Ishiyama) Dye in a Rice Breeding Line ARC 10464 |
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| Authors: | R. P. Singh A. K. Gupta R. G. Saini |
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| Affiliation: | Department of Genetics, Punjab Agricultural University, Ludhiana 141 004, India;Division of Genetics, Indian Agricultural Research Institute, New Dehli 110 012, India |
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| Abstract: | The genetics of resistance to three Indian pathotypes of Xanthomonas campestris pv. oryzae, namely, IX01, IX08 and IX09, was studied in a landrace of Indica rice ‘ARC 10464’. Resistance to each of the two pathotypes IX01 and IX09 was governed by two independently-inherited dominant genes while a single dominant gene was operative against patho-type 1X08. The joint segregation tests conducted on F2 plant progenies (F3 families) using pathotypes IX01, IX08 and IX09 suggested that the gene/(s) effective against each of the pathotypes are different. |
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| Keywords: | Oryza sativa Xanthomonas campestris pv. oryzae resistance joint segregation analysis |
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