“…Gynogenesis has been widely used in different genetic experiments, in studies of karyotypes (Parmenter, 1925(Parmenter, , 1933Kawamura, 1939;Svärdson, 1945), for chromosome mapping (Nace 81 al., 1970;Volpe, 1970;Purdom, et al, 1976), for establishing inbred strains (Nace, 1968;Purdom, 1969;Stanley and Sneed, 1973;Nagy et al, 1978), and in studies of mutagenesis (Metzger-Freed, 1972). In most of these studies amphibians were used.…”