Brief communication. Inheritance studies of blue and golden varieties of tench (Pisces: Tinca tinca L.)

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Abstract
The inheritance of blue and golden colors in tench (Tinca tinca L.) was studied by mating the respective mutations to the normal or wild-type green phenotype and/or together. Analyses of phenotype frequencies in F1, F2, and BC generations revealed that both color variants are mutations of two different, non-linked genes (b and g, respectively) recessive to wild pigmentation (B-G-), and both variants represent the homozygous combination only (bbG-, B-gg). The crossing of heterozygous carriers of both described genes provided wild, blue, and golden variants as well as alampic individuals completely lacking all types of skin pigments. Negative effects of mutations responsible for both colour phenotypes on growth intensity was also documented.

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