A Partial Dominant for Suppression of Color in the Syrian Hamster, Cricetus Mesocricetus auratus

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Abstract
Several series of experimental matings were carried out to investigate the appearance of a mutation involving color suppression in the hamster. The presence of a single factor in the normal golden produced an animal with a white ventrum and dark but distinct ruby eyes. In the panda or piebald (ss) hamster, a single factor greatly increased the amount of white over the entire body, with white ventrum and ruby eyes. Both factors together (homozygous) in complete suppression of color and microphthalmia. The designation Wh is proposed, and corresponding phenotypes and genotypes are: normal golden, whwh; white ventrum, Whwh; microphthalmic albino, WhWh; normal panda, sswhwh; whiter panda, ssWhwh.

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