Transferrin Groups of Tunas

RANSFERRIN pol.ymorphism has been demonstrated by gel electrophoresis Tin many vertebrates.These include men (SMITHIES and HILLER 1959), monkeys (GOODMAN and POULIK 1961), cattle (ASHTON 1958; SMITHIES and HICK-MAN 1958), sheep and goats (ASHTON and FERGUSON 1963; EFREMOV and BRAEND 1964), horses (BRAEND and STORMONT 1964), burros (NIECE and KRACHT 1967), pigs (ASHTON 1960a), mice (ASHTON and BRADEN 196l), antelopes (ASHTON and CARR 1965), harp seals (NAEVDAL 1965), doves (MUELLER 1961), chickens ( OGDEN, MORTON, GILMOUR and MCDERMID 1962), and gadoid fishes ( MBLLER and NAEVDAL 1966;M ~L L E R 1966).BARRETT and TSUYUKI (1967) have found polymorphisms of transferrin in several scombroid fishes-yellowfin tuna, skipjack tuna, albacore, and bonito.The animals most thoroughly studied have been domestic cattle.Transferrin