Abstract
A self-review of long-standing studies of induced androgenesis in fish. The data are provided on the induction of diploid androgenesis in teleost fish via blocking the first cleavage division and the development of the method of dispermic androgenesis in sturgeon fish. Androgenetic nucleocytoplasmic hybrids were obtained using the method of dispermic androgenesis and eggs of previously produced true interspecific hybrids. Specific morphological features of androgenetic hybrids were described and dispermic androgenesis was realized using cryopreserved sperm. The mechanism of sex determination in sturgeon fish is discussed with reference to possible us of androgenesis for restoration of rare and disappearing species.
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