Segregation of the black breed from chinchilla rabbits:1. Genic composition of the chinchilla rabbits and their offspring

概要

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This paper deals with the descriptions of the genic composition of the chinchilla rabbits and their offspring with black, dilute and white coats. In 132 litters with 808 offspring in total which were produced from the crossing of chinchilla rabbits, 694 chinchillas (85.9%), 44 dilute chinchillas (5.4%), 40 black (5.0%), and 30 white rabbits (3.7%) were produced. In reference to the gene symbols given for rabbit coat color by Castle (1930), the genic composition for the dilute, black and white rabbits are represented by the formulae, AA BB cchcch dd EE, aa BB cch cch DD EE, and ?? ?? cc ?? ??, respectively. In the crossing of the black rabbits there arised four individuals with black coats which are supposed to have the composition of aa cchcch Dd. This suggests a possibility in producing the black rabbit laving aa cchcch DD, a pure black producer.
日本遺伝学会の論文