Still another type is known in rabbits and is called chinchilla. This colour is lighter than the wild (agouti). Coloured character is completely dominant over chinchilla. However F1hybrids between chinchilla and.himalayan albino (cchch) or between chinchilla and albino (cchca) show light gray skin colour. A summary of different genotypes involved in this series, along with their phenotypes, is given in Table 5.1.
In mice, however, two different multiple allelic series are known for skin colour, one is albino series and other a black series (Table 5.2). In albino series, it was observed that wild type (grey) was dominant over all others, while heterozygous between any two of the three recessive alleles. (a, am and ae) gave intermediate phenotype (Table 5.3). In black series on the other hand, black is recessive to all, while yellow is dominant to all. Light belly in GL and bL is dominant over darker belly. Black body of bL, however, is recessive to grey body of normal individuals. Consequently, +/GL and +lbL both would have grey body and light belly (Table 5.4).
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