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The Journal of Heredity 1988:79(1):6-8
© 1988 The American Genetic Association 79:6-8

research-article

The Cytogenetics of Domestic Geese

F. G. Silversides, R. D. Crawford, and H. C. Wang

Department of Animal and Poultry Science, University of Saskatchewan Saskatoon, Canada
Department of Anatomy, University of Saskatchewan Saskatoon, Canada

Address reprint requests to R D Crawford, Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, Saskatchewan S7N 0W0, Canada.

Abstract

Hybrids were produced between an African male and several Pilgrim female domestic geese. Partial karyotypes revealed a difference in the fourth largest pair of autosomal chromosomes. This chromosome pair was metacentric in the African, submetacentric in the Pilgrim, and heteromorphic in the hybrids. A similar difference between the putative wild ancestors of the African and Pilgrim breeds has been reported by others. These findings provide cytological evidence to support the traditional opinion that the African breed was derived from the Asiatic swan goose (Anser cygnoides) and the Pilgrim breed was derived from the European greylag goose (Anser anser).


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