Polymorphism of &lt;i&gt;GH/HaeIII&lt;/i&gt; and &lt;i&gt;GDF9/AsplEI&lt;/i&gt; genes, genetic variation and association of their genotypes with immune status in sheep of different breeds ranched in different natural and geographic areas

Оздемиров, А. А.; Surov, A. I.; Surzhikova, E. S.; Хожоков, А. А.; Gadzhiev, Z. K.; Evlagina, Daria D.; Alieva, E. M.; Akaeva, R. A.

doi:10.18470/1992-1098-2022-3-78-84

Ûg Ross.: èkol. razvit.

2022

DOI: 10.18470/1992-1098-2022-3-78-84

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Polymorphism of <i>GH/HaeIII</i> and <i>GDF9/AsplEI</i> genes, genetic variation and association of their genotypes with immune status in sheep of different breeds ranched in different natural and geographic areas

А. А. Оздемиров¹,

A. I. Surov

E. S. Surzhikova

et al.

Abstract: Aim. One of the important tasks in solving the problem of improving the efficiency of sheep breeding is the rational use of fodder lands in the North Caucasus and the South of Russia, a significant part of which is located in different natural and climatic conditions. The complexity of solutions lies in insufficient knowledge of the mechanisms of adaptation of farm animals, in particular sheep, to the ecological and geographical features of these regions. The purpose of this research was to study the … Show more

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Cited by 2 publications

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Evaluation of the polymorphism of the GDF9 and BMP15 genes and their relationship with the reproductive functions of sheep of different breeds

Gadzhiev,

Surzhikova,

Evlagina

et al. 2023

Ûg Ross.: èkol. razvit.

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Aim. Polymorphism is the result of evolutionary processes and is inherited, associated with biodiversity and modified by natural selection and functions to preserve various forms of population. It is economically advantageous to find genes that can be used in breeding in such a way as to increase the fertility of animals in different natural geographical zones, since the adaptive abilities of organisms are complicated. In this regard, the purpose of this study was to study the genetic potential of sheep of different breeds bred in various ecological and geographical regions of the North Caucasus with pasture-pasture and pasture-stall conditions of sheep breeding.Material and Methods. Genotyping was undertaken of sheep of different breeds contained in various natural and climatic zones of the Republic of Dagestan and the most arid region of Stavropol Territory in the zone of risky agriculture where the climate is sharply continental. Genotyping in the loci of the genes of differential growth factor (GDF9) and bone morphogenetic protein (BMP15) was carried out by PCR-PDRF (polymorphism of the lengths of restriction fragments) by cutting DNA using endonuclease restriction and further analysis of the size of the resulting PCR fragments. The genetic structure of genes has been studied by methods of genetic and statistical analysis of the data obtained.Conclusion. The genetic structure of sheep populations of different breeds bred in the foothills of the Republic of Dagestan and the arid region of Stavropol Territory was studied for the first time. Information obtained on the role of the degree of genetic variability of sheep of different breeds provides data which can contribute to the ecological well-being of herds and the status characterising the signs of multiple birth rates is also determined. This will further improve and significantly accelerate breeding work with livestock, since an important task of further increasing the efficiency of the industry is the reproduction of the herd together with a simultaneous increase in the productivity of animals.

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Evaluation of the polymorphism of the GDF9 and BMP15 genes and their relationship with the reproductive functions of sheep of different breeds

Gadzhiev,

Surzhikova,

Evlagina

et al. 2023

Ûg Ross.: èkol. razvit.

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Genetic markers in sheep breeding

Goncharenko,

Khamiruev,

Dashinimaev

et al. 2024

Vestn. Novosib. gos. agrar. univ.

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The priority direction in developing domestic sheep breeding is the creation of new and improved breeding forms that combine high meat and wool productivity rates with good adaptive qualities to breeding conditions. In Russia, 404.2 thousand heads of coarse-wool sheep breeds and 21.2 thousand heads of semi-coarse-wool sheep are concentrated on breeding farms. Compared to 2000, the number of breeding animals increased by 5.0 times, while the yield of lambs for slaughter per 100 breeding queens increased by 5.7 times. One way to increase the selection and breeding work with breeds is to search and use genetic markers of productivity and vitality. The work aimed to summarise and analyse information about the genetic polymorphism of genes associated with traits of productivity and disease resistance in different breeds of sheep. The results of studies of polymorphic variants of genes related to the growth energy of young animals, wool quality and meat productivity in sheep are presented. The calpastatin (CAST) gene is described, which is associated with meat productivity and tenderness of meat the KRT (keratins) gene - with wool productivity and wool quality, the growth hormone gene GH and the differential growth factor gene GDF9 - with the regulation of growth and development, reproductive qualities and meat production, sheep productivity. In most studies, the predominant genotype in all breeds is CASTMM. The frequency of genotypes for the KRT and GH genes in breeds of different directions of productivity varies significantly. The relationship of genotypes CAST, GН, and GDF9 with economically valuable traits is described, making it possible to consider their genetic markers.

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Polymorphism of <i>GH/HaeIII</i> and <i>GDF9/AsplEI</i> genes, genetic variation and association of their genotypes with immune status in sheep of different breeds ranched in different natural and geographic areas

Cited by 2 publications

References 4 publications

Evaluation of the polymorphism of the GDF9 and BMP15 genes and their relationship with the reproductive functions of sheep of different breeds

Evaluation of the polymorphism of the GDF9 and BMP15 genes and their relationship with the reproductive functions of sheep of different breeds

Genetic markers in sheep breeding

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