Genetics of Aspergillus flavus: linkage of aflatoxin mutants
- 1 January 1984
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Microbiology
- Vol. 30 (1), 68-73
- https://doi.org/10.1139/m84-012
Abstract
Eight aflatoxin (afl) mutants of Aspergillus flavus were induced with N-methyl-N′-nitro-N-nitrosoguanidine. Heterozygous diploids formed between afl mutants and tester strains revealed that each afl mutant was recessive. Haploids selected from these heterozygous diploids indicated the linkage of all eight afl mutants to markers on group VII. These include previously mapped arg-7 (arginine), leu (leucine), dominant afl-1, and nor which accumulates norsolorinic acid that is visible as an orange–red pigment. Diploid complementation tests indicated that all but two afl mutants were nonallelic. Diploids homozygous for nor, resulting from crossing-over, were isolated and used to map new afl genes.This publication has 3 references indexed in Scilit:
- Identification of averantin as an aflatoxin B1 precursor: placement in the biosynthetic pathwayApplied and Environmental Microbiology, 1980
- Genetics ofAspergillus flavus: complementation and mapping of aflatoxin mutantsGenetics Research, 1979
- Linkage Groups in Aspergillus flavusMycologia, 1976