Deniskova TE, Abdelmanova AS.

Animal Husbandry and Fodder Production. 2026. Vol. 109. No. 1. Р. 99-111.

doi: 10.33284/2658-3135-109-1-99

Original article

Identification of selective sweeps in the Romanov sheep breed based on haplotype analysis

 

Tatyana E Deniskova1, Alexandra S Abdelmanova2

1,2Federal Research Center for Animal Husbandry named after Academy Member LK Ernst, Dubrovitsy, Russia

1horarka@yandex.ru, https://orcid.org/0000-0002-5809-1262

2abdelmanova@vij.ru, https://orcid.org/0000-0003-4752-0727

 

Abstract. This study aims to identify genomic regions that distinguish the Romanov sheep breed from other breeds grouped by tail type. Using the OvineSNP50 BeadChip DNA chip, whole-genome SNP genotyping of 391 samples of biological material (ear notches) of sheep from 14 breeds was performed. A search for traces of selection pressure was performed based on haplotype analysis using the hapFLK program. Two genomic regions under selection pressure were identified in the Romanov breed, on chromosomes 10 and 14, comprising 2 and 11 genes, respectively. A total of 218 QTLs were identified in these regions. After validation, the identified genes can be recommended as potential targets for inclusion in marker-assisted selection programs for Romanov sheep.

Keywords: SNPs, DNA chips, candidate genes, QTLs, domestic sheep, Romanov breed

Acknowledgments: the work was supported in accordance to the plan of research works for 2024-2026 LK Ernst Federal Research Center (No. FGGN-2024-0015).

For citation: Deniskova TE, Abdelmanova AS. Identification of selective sweeps in the Romanov sheep breed based on haplotype analysis. Animal Husbandry and Fodder Production. 2026;109(1):99-111. (In Russ.)]. https://doi.org/10.33284/2658-3135-109-1-99

 

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Information about the authors:

Tatyana E Deniskova, Cand. Sci. (Biology), Leading Researcher, Head of the Laboratory of Molecular Genetics of Farm Animals, Federal Research Center for Animal Husbandry named after Academy Member LK Ernst, 60 Dubrovitsy village, Podolsk City district, Moscow region, 142132.

Alexandra S Abdelmanova, Dr. Sci. (Biology), Senior Researcher, Laboratory of Genetic Monitoring of Livestock Resources, Federal Research Center for Animal Husbandry named after Academy Member LK Ernst, 60 Dubrovitsy village, Podolsk City district, Moscow region, 142132.

The article was submitted 20.01.2026; approved after reviewing 20.02.2026; accepted for publication 16.03.2026.

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