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The Journal of Heredity 1954:45(1):21-24
© 1954 The American Genetic Association 45:21-24

research-article

CHROMOSOME NUMBERS AND EXPERIMENTAL POLYPLOIDY IN THE PIG

LEO SACHS

Abstract

A study of the chromosomes in the pig has shown no evidence of different chromosome numbers in different varieties. 2n=40 is the correct chromosome number both for the "Old Swedish" and for other pig varieties. The production of experimental polyploids in mammals is considered as a definite possibility. But the establishment of chromosome constancy in different varieties makes it doubtful that an experimental polyploid has been produced in the pig.


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