A new breeding system using gynogenesis and sex-reversal for fast inbreeding in carp

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Abstract
A new breeding technique is demonstrated using gynogenesis and sex-reversal. The essence of this method is an adequate alternation of gynogenesis and sibmating with a maximal increase in the coefficient of inbreeding. The rate of this increase considerably exceeds that characteristic of sibmating. The change in the coefficient of inbreeding (F) and in the degree of genotypic identity (I) were determined in the carp in which 9 recombination probabilities are known. In the GS system the value of F exceeds 0.9 in the fifth generation, increasing above 0.99 while in the 12th generation.