Development of Congenic Mutants and Genetic Analysis of Virulence in Cryptococcus Neoformans
Cryptococcus neoformans strains were isolated from clinical source taken from the University of Benin Teaching Hospital (UBTH) and environmental source taken from New Benin Market. Two strains were selected; clinical isolate 4832 and environmental isolate NBM5. They were determined to be of two different mating types, due to differences in their susceptibility to the antifungal agent fluconazole. In order to check the involvement of mating type locus in the virulence of C. neoformans, congenic mutants were developed.