Identification of Three Different Loci Controlling Kasugamycin Resistance inPyricularia oryzae

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Abstract
Two kasugamycin resistant strains of P. oryzae were obtained in the laboratory from finger millet isolates of the fungus. In each of these strains resistance is controlled by a single gene. Allelism tests, in which a previously studied strain was included, revealed the existence of 3 loci, kas-1, kas-2 and kas-3, for kasugamycin resistance in P. oryzae. None of these 3 loci appears to be linked to either of the remaining two or to the mating type. Mutation at the kas-3 locus apparently is also responsible for resistance to blasticidin S.