Paris Commune, 9, Mykolayiv, 54020 Ukraine, e-mail kss0108@mail.ru A b s t r a c t Marker-assisted selection is an attractive way to improve the economically important traits in domestic animals and particularly in pigs. <...> Insulin-like growth factor 2 ( ) is one of the potentially important genetic marker for growth and carcass traits of pigs. <...> The objective of our work was to study G3072A polymorphism of genotypes on productive traits of their offspring of different sexes. = 1247), Landrace (L, = 934), Duroc (D, meat (BM, (BD, = 37), Liven (LIV, = 54), Estonian beckon (EB, = 138) and one terminal cross (TM, gene in different pig breeds and to evaluate the effect of boar polymorphism was studied in seven pig breeds including large white and their close related breeds Yorkshire and Edelswine (LW, = 642), Pietrain (P, records of 5908 offspring (including 5015 gilts and 893 young boars) produced from twenty LW boars with known genotype for = 87), Belorussian = 10), one synthetic line Body = 66). <...> The following productive traits were evaluated: body weight at the end of growing period (BW, kg), daily gain during entire growing period (DG, g), daily gain during early period from birth to 76.41±0.04 days (DG1, g), daily gain during late period from 76.41±0.04 to 170.23±0.05 (DG2, g); the age at 100 kg (AGE100kg, days), average actual back fat thickness measured in four points at the end of growing period (BF, mm) and average back fat thickness calculated for the 100 kg body weight (BF100kg, mm). <...> LW pigs were characterized by the intermediate values of allele and L the frequencies of allele and 0.243, respectively. <...> Calculations performed with additive-dominance model and two-way analysis of variance (ANOVA) showed the faster increasing (decreasing) above-mentioned traits in order of genotypes in young boars comparing to gilts. <...> Principal component (PC) analysis showed that first two PCs (PC1 and PC2) determine 76.23 % of variability of the initial matrix for young boars and 82.49 % for gilts. <...> The quantitative effects of genotypes growing performance on the growth and carcass traits of pigs, and sex-dependent <...>