Subbotkin M F, Subbotkina T A
Zh Evol Biokhim Fiziol. 2008 Jul-Aug;44(4):391-7.
Blood proteins of true sturgeons of three genera Acipenser, Huso, and Pseudocaphirhynchus preserving unidirectional variability in ontogenesis regardless of peculiarities of the fish ecology can indicate unity of origin of the current species. Age-related protein transformations have heterochronous character. The slowest ontogenetic development lasting 4-6 years is peculiar to one of antigens of beta-globulins. Analysis of variability of beta-globulins in the age diapason beginning from the 4-month-old fry and including adult spawned individuals indicates different functional significance of their individual components. The beta A-globulin absent at early postembryonic stages becomes the second, after albumin, quantitatively predominant antigen in the adult fish blood. The amount of beta B-globulin, like antigens of alpha 1- and alpha 2-globulins preserving relative ontogenetic stability, can decrease significantly in freshwater sturgeons due to their preparation for spawning.
鲟属、鳇属和拟铲鲟属这三个属的真鲟的血液蛋白在个体发育过程中保持单向变异性，无论鱼类生态特征如何，这都表明当前物种起源的统一性。与年龄相关的蛋白质转化具有异时性特征。β-球蛋白的一种抗原的个体发育最慢，持续4至6年。对从4个月大的鱼苗到成年产卵个体的年龄范围内β-球蛋白变异性的分析表明，其各个成分具有不同的功能意义。胚胎后期早期不存在的βA-球蛋白在成年鱼血液中成为仅次于白蛋白的第二大数量上占主导的抗原。βB-球蛋白的量，与保持相对个体发育稳定性的α1-球蛋白和α2-球蛋白的抗原一样，由于淡水鲟为产卵做准备，其含量可能会显著降低。
