Abstract
By pairing of strains of Dictyostelium giganteum in various combinations this species was shown to be heterothallic. Four mating types were identified. Some strains could not be assigned a mating type and others showed no mating reaction. No self-compatible strains were found. Mutations were introduced in several strains and genetic crosses were performed. The results of these crosses show that mating and macrocyst formation are controlled by a single locus-multiple allele incompatibility system. The results also support the view that the myxamoebae that emerge upon germination of the macrocysts are the products of meiosis.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Aldrich H. C. The ultrastructure of meiosis in three species of Physarum. Mycologia. 1967 Jan-Feb;59(1):127–148. [PubMed] [Google Scholar]
- Clark M. A., Francis D., Eisenberg R. Mating types in cellular slime molds. Biochem Biophys Res Commun. 1973 May 15;52(2):672–678. doi: 10.1016/0006-291x(73)90765-1. [DOI] [PubMed] [Google Scholar]
- Erdos G. W., Nickerson A. W., Raper K. B. The fine structure of macrocyst germination in Dictyostelium mucoroides. Dev Biol. 1973 Jun;32(2):321–330. doi: 10.1016/0012-1606(73)90244-3. [DOI] [PubMed] [Google Scholar]
- Erdos G. W., Raper K. B., Vogen L. K. Mating Types and Macrocyst Formation in Dictyostelium discoideum. Proc Natl Acad Sci U S A. 1973 Jun;70(6):1828–1830. doi: 10.1073/pnas.70.6.1828. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Filosa M. F., Dengler R. E. Ultrastructure of macrocyst formation in the cellular slime mold, Dictyostelium mucoroides: extensive phagocytosis of amoebae by a specialized cell. Dev Biol. 1972 Sep;29(1):1–16. doi: 10.1016/0012-1606(72)90038-3. [DOI] [PubMed] [Google Scholar]
- Macinnes M. A., Francis D. Meiosis in Dictyostelium mucoroides. Nature. 1974 Sep 27;251(5473):321–324. doi: 10.1038/251321a0. [DOI] [PubMed] [Google Scholar]
- Weber A. T., Raper K. B. Induction of fruiting in two aggregateless mutants of Dictyostelium discoideum. Dev Biol. 1971 Dec;26(4):606–615. doi: 10.1016/0012-1606(71)90143-6. [DOI] [PubMed] [Google Scholar]