The inheritance of drug resistance and compatibility type in Phytophthora drechsleri

Abstract

Methods have been developed for the selection of mutants resistant to p-fluorophenylalanine, chloramphenicol and actidione. Resistance to p-fluorophenylalanine and to chloramphenicol was inherited as if determined in each case by a single dominant allele present in diploid somatic nuclei. Inheritance of mating type was anomalous in crosses involving drug-resistant mutants. Presumptive mating-type heterokaryons were generated in a few per cent of sexual progeny from a wild-type cross. © 1974, Cambridge University Press. All rights reserved.