Population analysis of electrophoretic variation in blood serum albumins of European (Acipenser ruthenus Linnaeus) and Siberian (A. ruthenus marsiglii Brandt) sterlet

Abstract

We studied blood serum albumins in European ( Acipenser ruthenus L.) and Siberian ( A. ruthenus marsiglii Brandt) sterlet using disk electrophoresis in polyacrylamide gel. The albumins were shown to be controlled by three codominant alleles of a single locus ( ALB * a, b, c ). In European sterlet, all six theoretically possible genotypes were described, one of which ( ALB * c / c ) occurred extremely rarely (one individual). Siberian sterlet was found to be monomorphic for albumins: all fish examined had the ALB * a / a genotype. There was no correlation between albumin patterns and fish fatness. In a number of samples from the Volga River basin, spatial and temporal differentiation was found and analyzed. The results suggest that construction of hydroelectric stations may provoke massive and prolonged sterlet migrations. ANIMAL GENETICS

General model of the opiate pharmacophore

“…Earlier, 1 we have shown that, in molecules of all the types of OR ligands, three molecular regions can be sin gled out (А, B, and C) which determine nonselective affinity of the ligands to OR. Region А is a hydrophilic electron withdrawing region responsible for electrostat ic interaction with the anionic part of the OR and H bonding with the OR as a proton donor.…”

Polymorphism of the myogens locus in some representatives of sturgeons (Acipenseridae)

“…In addition, the population genetic structure of the spe cies of the family Acipenseridae at various periods in different parts of their natural habitats was described in detail. Therefore, biochemical markers have not lost their relevance and are widely used at present, both in applied [10][11][12][13][14] and in academic research [15][16][17][18][19].…”