Ref ID : 4076
Miwa Isoji and Umehara Noritoshi; Conjugation between G1 and G2 Phase Cells in Paramecium tetraurelia. J.Protozool. 30(2):271-274, 1983
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Cells of Paramecium tetraurelia, stock hrd, cultured in a micro-capillary containing 1 ul fresh culture medium, expressed mating activity through the whole cell cycle. Mating-reactive G2 phase cells can conjugate with cells of other phases. The G2 phase cells, which have double (4C) the normal micronuclear DNA content, undergo pre-meiotic DNA synthesis when conjugated with G1 phase cells. The micronucleus of the progeny from the cross between a G1 and a G2 cell becomes triploid.