Sexual reproduction is a fundamental developmental process that allows for genetic diversity through the control of zygote formation, recombination, and gametogenesis. The correct regulation of these events is paramount. Sexual reproduction in filamentous fungi, including mating strategy (self-fertilization/homothallism or outcrossing/heterothallism), is determined by the expression of mating t...

The non-Mendelian erythromycin resistance mutation ery-u1 shows bidirectional uniparental inheritance in crosses between homothallic ery-u1 and ery-u1(+) strains of Chlamydomonas monoica . This inheritance pattern supports a general model for homothallism invoking intrastrain differentiation into opposite compatible mating types and, further, suggests that non-Mendelian inheritance is under mat...

The button mushroom Agaricus bisporus is represented mainly by two varieties, a secondarily homothallic variety with predominantly heterokaryotic spores per basidia and heterothallic four homokaryotic spored basidium. Both varieties also differ in their recombination landscape the former showing crossovers (CO) at chromosome ends whereas latter has more evenly distribution of CO over chromosome...

Sexual reproduction in Chlamydomonas monoica is homothallic: pair formation and cell fusion occur in clonal culture and give rise to a heavily walled diploid zygospore. During maturation of the young zygote, a distinctive "primary zygote wall" is released before the development of the highly reticulate zygospore wall. Using ethyl methanesulfonate and ultraviolet irradiation as mutagens, we have...

as a starting point for learning about S. cerevisiae and its cell types. This review is intended for people who are being exposed to the study of S. cerevisiae for the first time and also for specialists who work on other organisms such as filamentous fungi. There will be no attempt to be comprehensive, but considerable efforts to be comprehensible! The life cycle of S. cerevisiae and, in parti...

Homokaryons from the homothallic ascomycte Sordaria macrospora are able to enter the sexual pathway and to form fertile fruiting bodies. To analyze the molecular basis of homothallism and to elucidate the role of mating-products during fruiting body development, we cloned and sequenced the entire S. macrospora mating-type locus. Comparison of the Sordaria mating-type locus with mating-type idio...