Indian Society of Genetics & Plant Breeding

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IDENTIFICATION OF ALLELIC GENES CONFERRING RESISTANCE TO XAN£HOMONAS CAMPESTRIS PV. ORYZAE IN EIGHT CULTIVARS OF RICE

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Rice cultivars Ruchi, RM 1, R 435-107, R 435-756, IR 54, RP 2151-40-1, BG 400-1 and DV 85
were genetically analysed against the Indian pathotype group I of bacterial blight. The
varieties were crossed with the susceptible T(N)1 and amongst themselves. The Fl and F2
analyses clarified that the cl1ltivars possessed one recessive gene for resistance. These genes
for resistance can be grouped in to three allelic groups. Group 1-Ruchi and BG 400-1,
Group.2 RP 2151-40-1, DV 85 and RM 1 and Group-3 IR 54, R 435-107, R 435-756.
 

Keywords: Oryzae sativa, Xanthomonas campestris pv. oryzae, recessive, allelism.

Info

Year: 1995
Volume: 55
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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