The Journal of Heredity 1981:72(2):113-116
© 1981 The American Genetic Association 72:113-116
research-article |
The genetic basis for piebald patterns in cattle
The author is assistant professor, Animal Science Department, University of Florida, Gainesville, FL 32611. The Roman L. Hruska U.S. Meat Animal Research Center was a primary source of data. The author thanks W. F. Hollander for his helpful comments on the manuscript. This paper is Journal Series no. 2633 of the University of Florida Institute of Food and Agricultural Sciences.
Abstract
Evidence is given for the existence of a dominant mutant, Bl, found in Simmental and some other breeds of cattle that is responsible for white facial pattern. This mutant is independent of the mutant responsible for the typical white facial and body pattern of the Hereford breed. Also, evidence is presented to support a multiple allelic series composed of SH (Hereford pattern), Scs (color-side pattern), S+ (non-spotted wild type), and s (recessive spotting pattern). Alleles SH and Scs are codominant to each other and incompletely dominant over S+, SH, Scs, and S+; all appear to be completely dominant over s. The Dutch belted pattern is probably controlled by an independent dominant mutant, Bt
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