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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 501

Dieter Ammermann; Mating types in Stylonychia mytilus Ehrbg. Arch.Protistenk 126:373-381, 1982

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The occurrence and frequencies of mating type distribution in a pond was investigated during several years. Clear differences were observed. A few clones from the pond and from crosses did not conjugate with clones belonging to 2-3 mating types. Therefore they do not belong to one, but to these 2-3 mating types. A hypothesis is described which might explain this phenomenon and the rare intraclonal conjugation.