Gynogenetic progeny of sterlet Acipenser ruthenus were obtained by inseminating eggs with UV-inactivated sperm followed by meiotic restoration of ploidy by heat shock. Gynogenetic origin of progeny was assessed by parentage assignment using 15 microsatellite markers. Sex ratio was investigated by gonad histology in 15 3-year-old fish, eight of which were confirmed gynogenotes, with five of those containing primary oocytes (62.5%). Blood plasma concentration of 11-ketotestosterone (KT-11) was analyzed in 63 4-year-old juveniles, 46 of which were genetically confirmed gynogenotes. Measurement of KT-11 showed the proportion of female sterlet to be 65.2%. This sex ratio conformed to the current hypothesis of female heterogametic sex determination but was at the low end of the reported female ratio in sturgeon gynogenetic progeny.

小体鲟的雌核发育后代鲟通过用紫外线灭活的精子对卵进行授精，然后通过热休克减数分裂恢复倍性而获得卵。通过使用15个微卫星标记的亲缘关系评估后代的雌激素发育起源。通过性腺组织学检查了15只3岁大鱼的性别比，其中8条为确认的妇产生殖器官，其中5条含有原代卵母细胞（62.5％）。在63名4岁的少年中分析了11-酮睾酮（KT-11）的血浆浓度，其中46名是遗传学确认的妇产科医生。测量KT-11表明雌性的比例为65.2％。该性别比例符合当前女性异配子性别决定的假设，但在st鱼雌性生殖发育后代中所报告的女性比例处于低端。