The Journal of Heredity 1984:75(1):81-81
© 1984 The American Genetic Association 75:81
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Linkage of hooded and hood-modifier genes in the rat
Department of Pathology, School of Medicine, University of Pittsburgh Pittsburgh, Pennsylvania 15261
Abstract
The linkage of hooded (h) and hood-modifier (Hm) loci was studied in the backcross of inbred rat strains (ACl × Dl)F1 × D Four distinct hooded phenotypes were found in 128 off spring. Two had the parental phenotype and two were recombinants. The results of statistical analyses showed that the h and Hm autosomal loci are linked; the corrected distance is 47 ± 4 cm. The (Hm gene is transmitted in normal Mendelian pattern and has two alleles that manifest short (Hm5) or long (Hm1) pattern of the hooded pigmentallon.