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Information × Registration Number 0221U100692, 0116U000098 , R & D reports Title To define features of communication of QTL-loci with a level of display of polygenic signs at hens in phylogeny popup.stage_title Head Katerynych Oleg O, Доктор сільськогосподарських наук Registration Date 08-01-2021 Organization State poultry research station popup.description2  The level of manifestation of the main economic and useful traits during five generations in hens of egg productivity with haplotype IC at the locus of prolactin (insertion of 24 bp in the promoter region of the gene and the transition of cytosine to thymine at position -2402) was studied and statistical processing. The smaller influence of the presence of insertion in the promoter region of the prolactin gene on the egg productivity of chickens of domestic selection - line A (Birkovska colorful) in comparison with the breed of white leghorn was confirmed. The concept of forming the connection of QTL-loci with egg-laying in phylogeny, which combines new knowledge, namely: high stability of the type and nature of the connection between the QTL-locus and the components of the formation of egg productivity, both in ontogenesis (during the productive period) and in phylogeny (for five generations); a high heredity of the connection between the IC haplotype at the locus of prolactin in hens of the egg direction of productivity of domestic selection with economically useful features: safety (r = 0.79); live weight (0.82); egg weight (0.55); egg production at 40 weeks of age (0.62); data on a smaller effect of insertion in the promoter region of the prolactin gene (haplotype IC), compared with the breed of white leghorn, to increase the magnitude of the manifestation of the polygenic trait of egg production. This QTL locus is not the most significant in terms of influence on egg production in laying hens of Ukrainian selection. Product Description popup.authors Drachuk Inna V. Katerynych Oleh O. Pankova Svitlana M popup.nrat_date 2021-03-17 Close