Abstract
A number of laboratories are now engaged in the genetic analysis of Candida albicans. This diploid yeast, the major fungal pathogen of humans, is imperfect. Parasexual techniques have been devised for complementation and recombination analysis in this organism. This paper attempts to address the question of the extent to which nonisogenic strains of C. albicans have conserved a common genetic map. This analysis is a prerequisite for the integration of work done in different laboratories and may also provide useful information on the taxonomy of the genus Candida. The paper also reports the analysis of an interspecific hybrid between C. albicans and Candida stellatoidea. The method employed in these studies was the analysis of the mitotic recombination relationships of a group of linked genes and their centromere. Strains carrying linked auxotrophic mutations were fused with isogenic and nonisogenic complementary strains to form tetraploids. The mitotic recombination analyses of these tetraploids suggest that in the isolates studied the genetic map is conserved. A comparison of tetraploid and diploid mitotic recombination analyses is also presented.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Kakar S. N., Magee P. T. Genetic analysis of Candida albicans: identification of different isoleucine-valine, methionine, and arginine alleles by complementation. J Bacteriol. 1982 Sep;151(3):1247–1252. doi: 10.1128/jb.151.3.1247-1252.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Olaiya A. F., Sogin S. J. Ploidy determination of Canadida albicans. J Bacteriol. 1979 Dec;140(3):1043–1049. doi: 10.1128/jb.140.3.1043-1049.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pesti M., Ferenczy L. Protoplast fusion hybrids of Candida albicans sterol mutants differing in nystatin resistance. J Gen Microbiol. 1982 Jan;128(1):123–128. doi: 10.1099/00221287-128-1-123. [DOI] [PubMed] [Google Scholar]
- Polak A., Grenson M. Evidence for a common transport system for cytosine, adenine and hypoxanthine in Saccharomyces cerevisiae and Candida albicans. Eur J Biochem. 1973 Jan 15;32(2):276–282. doi: 10.1111/j.1432-1033.1973.tb02608.x. [DOI] [PubMed] [Google Scholar]
- Poulter R., Hanrahan V., Jeffery K., Markie D., Shepherd M. G., Sullivan P. A. Recombination analysis of naturally diploid Candida albicans. J Bacteriol. 1982 Dec;152(3):969–975. doi: 10.1128/jb.152.3.969-975.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Poulter R., Jeffery K., Hubbard M. J., Shepherd M. G., Sullivan P. A. Parasexual genetic analysis of Candida albicans by spheroplast fusion. J Bacteriol. 1981 Jun;146(3):833–840. doi: 10.1128/jb.146.3.833-840.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Riggsby W. S., Torres-Bauza L. J., Wills J. W., Townes T. M. DNA content, kinetic complexity, and the ploidy question in Candida albicans. Mol Cell Biol. 1982 Jul;2(7):853–862. doi: 10.1128/mcb.2.7.853. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sarachek A., Rhoads D. D., Schwarzhoff R. H. Hybridization of Candida albicans through fusion of protoplasts. Arch Microbiol. 1981 Mar;129(1):1–8. doi: 10.1007/BF00417169. [DOI] [PubMed] [Google Scholar]
- Whelan W. L., Magee P. T. Natural heterozygosity in Candida albicans. J Bacteriol. 1981 Feb;145(2):896–903. doi: 10.1128/jb.145.2.896-903.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Whelan W. L., Partridge R. M., Magee P. T. Heterozygosity and segregation in Candida albicans. Mol Gen Genet. 1980;180(1):107–113. doi: 10.1007/BF00267358. [DOI] [PubMed] [Google Scholar]
- Whelan W. L., Soll D. R. Mitotic recombination in Candida albicans: recessive lethal alleles linked to a gene required for methionine biosynthesis. Mol Gen Genet. 1982;187(3):477–485. doi: 10.1007/BF00332632. [DOI] [PubMed] [Google Scholar]