Induction of meiotic gynogenesis in sterlet (Acipenser ruthenus) using UV-irradiated bester sperm

Diploid gynogenesis was induced in sterlet (Acipenser ruthenus) using UV-irradiated bester (Huso huso × A. ruthenus) sperm. The optimal condition for the retention of the second polar body in sterlet was investigated by altering the timing, intensity and duration of heat shock application. A total of 90 gynogens of known parentage from three different experimental treatments were screened using microsatellite DNA analysis, and uniparental transmission in meiogens was confirmed.