Premium
THE EGG WHITE PROTEIN EVIDENCE FOR RATITE AFFINITIES
Author(s) -
Sibley Charles G.,
Frelin Christian
Publication year - 1972
Publication title -
ibis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.933
H-Index - 80
eISSN - 1474-919X
pISSN - 0019-1019
DOI - 10.1111/j.1474-919x.1972.tb00835.x
Subject(s) - struthio , biology , galliformes , zoology , isoelectric focusing , affinities , egg white , charadriiformes , white (mutation) , subspecies , anatomy , genetics , biochemistry , gene , enzyme
Summary The egg white proteins of the large ratites ( Struthio, Casuarius, Dromaius, Rhea ), the kiwis ( Apteryx ) and several tinamous (Tinamidae) were compared with one another and representatives of several other groups of birds using the technique of isoelectric focusing in acrylamide gel. The tryptic peptides of the ovalbumins of the same groups were compared by thin‐layer electrophoresis. The results indicate that the large ratites are more closely related to one another than any one of them is to any other living bird; that the kiwis are not closely related to any of the other groups with which they were compared; and that the tinamous are not closely related to any of the large ratites but may be distantly related to the Galliformes.