Nuclear Control of Sexual Differentiation in Allomyces macrogynus

Nielsen, Tom A. B.; Olson, Lauritz W.

doi:10.2307/3792899

Cited by 4 publications

(2 citation statements)

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“…A. macrogynus all-male and all-female mutants have been isolated through a variety of mutagenesis techniques. Non-Mendelian mutants producing nearly 100% male gametangia have been isolated by means of acridine dye treatment, resulting in mitochondrial DNA damage (218,224,256). No all-female A. macrogynus non-Mendelian mutants have been isolated, although both all-male and all-female strains have been generated through mutagenesis of the nuclear genome (218).…”

Section: Allomyces Macrogynus: a Model Homothallic Fungusmentioning

confidence: 99%

“…Non-Mendelian mutants producing nearly 100% male gametangia have been isolated by means of acridine dye treatment, resulting in mitochondrial DNA damage (218,224,256). No all-female A. macrogynus non-Mendelian mutants have been isolated, although both all-male and all-female strains have been generated through mutagenesis of the nuclear genome (218). The all-male mutants resulting from acridine dye treatment are likely the result of mitochondrial DNA mutations affecting the electron transport and ultimate energy output of the individual rather than a mutation in a sex-determining factor.…”

Section: Allomyces Macrogynus: a Model Homothallic Fungusmentioning

confidence: 99%

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The Evolution of Sex: a Perspective from the Fungal Kingdom

Lee

et al. 2010

Microbiol Mol Biol Rev

323

344

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SUMMARY Sex is shrouded in mystery. Not only does it preferentially occur in the dark for both fungi and many animals, but evolutionary biologists continue to debate its benefits given costs in light of its pervasive nature. Experimental studies of the benefits and costs of sexual reproduction with fungi as model systems have begun to provide evidence that the balance between sexual and asexual reproduction shifts in response to selective pressures. Given their unique evolutionary history as opisthokonts, along with metazoans, fungi serve as exceptional models for the evolution of sex and sex-determining regions of the genome (the mating type locus) and for transitions that commonly occur between outcrossing/self-sterile and inbreeding/self-fertile modes of reproduction. We review here the state of the understanding of sex and its evolution in the fungal kingdom and also areas where the field has contributed and will continue to contribute to illuminating general principles and paradigms of sexual reproduction.

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Section: Allomyces Macrogynus: a Model Homothallic Fungusmentioning

confidence: 99%