{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T05:18:23Z","timestamp":1788499103607,"version":"build-2803163510"},"reference-count":58,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T00:00:00Z","timestamp":1788307200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100019644","name":"Ministry of Agriculture of the Republic of Kazakhstan","doi-asserted-by":"crossref","award":["BR22885692"],"award-info":[{"award-number":["BR22885692"]}],"id":[{"id":"10.13039\/100019644","id-type":"DOI","asserted-by":"crossref"}]},{"award":["BR22885692"],"award-info":[{"award-number":["BR22885692"]}],"id":[{"id":"https:\/\/ror.org\/03577hm03","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>Kazakhstan\u2019s sheep portfolio underpins much of the country\u2019s mutton and wool production, yet several of its principal breeds remain genomically uncharacterised. The aim of this study was to characterise the genomic diversity, population structure, and global phylogenetic placement of three economically important Kazakh breeds and to determine whether they constitute separate gene pools requiring independent management. We present the first genome-wide SNP characterisation to include the Degeres (DE), the Etti Merino (EM), and the Kazakh fat-tailed coarse-wool (KKG) breeds simultaneously. A total of 1497 animals (DE = 354, EM = 642, KKG = 501) sampled across seven production households were genotyped and, after quality control, analysed at 42,279 SNPs, of which 22,766 LD-pruned markers were used for principal component analysis and AMOVA. We applied principal component analysis (PCA), pairwise FST, analysis of molecular variance (AMOVA), neighbour-joining phylogenetics, model-based ancestry estimation (ADMIXTURE), and Hill-number diversity profiling, and projected the breeds against the global Ovine SNP50 HapMap panel (74 reference breeds, 2819 animals; 37,685 shared SNPs). All three breeds retained uniformly high within-breed diversity (expected heterozygosity 0.413\u20130.417) with fixation indices at or near zero. AMOVA partitioned 94.03% of variance within breeds (\u03a6ST = 0.060, p &lt; 0.001). PCA, phylogeny, and ADMIXTURE concordantly resolved three breed-specific clusters at K = 3, with a maximum interbreed FST of 0.038 within the study dataset. Against the global panel, EM was genetically closest to Merino and Merino-derived reference breeds (pooled FST = 0.017) and substantially more distant from Southwest Asian sheep (FST = 0.045), whereas DE and KKG showed the reciprocal pattern (FST = 0.027 and 0.020 to Southwest Asia, 0.052 to the Merino group). DE additionally displayed the heterozygote excess and partial admixture expected of an incompletely consolidated composite. These results delineate three distinct gene pools and carry direct implications for breed management and the conservation of genomic diversity in Kazakhstani sheep.<\/jats:p>","DOI":"10.3390\/ani16172754","type":"journal-article","created":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T10:57:23Z","timestamp":1788346643000},"page":"2754","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Genome-Wide SNP Characterisation of Three Kazakh Sheep Breeds: Kazakh Fat-Tailed Coarse-Wool, Degeres, and Etti Merino"],"prefix":"10.3390","volume":"16","author":[{"given":"Kirill","family":"Yanin","sequence":"first","affiliation":[{"name":"Tanir Research Laboratory, Almaty 050040, Kazakhstan"},{"name":"Institute of Plant Biology and Biotechnology, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rakhim","family":"Kanat","sequence":"additional","affiliation":[{"name":"Tanir Research Laboratory, Almaty 050040, Kazakhstan"},{"name":"Institute of Plant Biology and Biotechnology, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-4386-3303","authenticated-orcid":false,"given":"Iskander","family":"Isgandarov","sequence":"additional","affiliation":[{"name":"Institute of Plant Biology and Biotechnology, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dastanbek","family":"Baimukanov","sequence":"additional","affiliation":[{"name":"Institute of Plant Biology and Biotechnology, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8007-5066","authenticated-orcid":false,"given":"Zagipa","family":"Sapakhova","sequence":"additional","affiliation":[{"name":"Tanir Research Laboratory, Almaty 050040, Kazakhstan"},{"name":"Institute of Plant Biology and Biotechnology, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4814-2601","authenticated-orcid":false,"given":"Tatyana","family":"Ulyanova","sequence":"additional","affiliation":[{"name":"Zhangir Khan West Kazakhstan Agrarian Technical University, Oral 090009, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4106-4954","authenticated-orcid":false,"given":"Alexandr","family":"Kovalchuk","sequence":"additional","affiliation":[{"name":"Zhangir Khan West Kazakhstan Agrarian Technical University, Oral 090009, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7500-1601","authenticated-orcid":false,"given":"Vadim","family":"Ulyanov","sequence":"additional","affiliation":[{"name":"Zhangir Khan West Kazakhstan Agrarian Technical University, Oral 090009, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Indira","family":"Beishova","sequence":"additional","affiliation":[{"name":"Zhangir Khan West Kazakhstan Agrarian Technical University, Oral 090009, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nurzhan","family":"Zhumadillayev","sequence":"additional","affiliation":[{"name":"Zhangir Khan West Kazakhstan Agrarian Technical University, Oral 090009, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Narzhan","family":"Zhumadillayev","sequence":"additional","affiliation":[{"name":"Zhangir Khan West Kazakhstan Agrarian Technical University, Oral 090009, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daryn","family":"Janayev","sequence":"additional","affiliation":[{"name":"Zhangir Khan West Kazakhstan Agrarian Technical University, Oral 090009, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anastasiya","family":"Yanina","sequence":"additional","affiliation":[{"name":"Institute of Plant Biology and Biotechnology, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Malika","family":"Shamekova","sequence":"additional","affiliation":[{"name":"Tanir Research Laboratory, Almaty 050040, Kazakhstan"},{"name":"Institute of Plant Biology and Biotechnology, Almaty 050010, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Kijas, J.W., Lenstra, J.A., Hayes, B., Boitard, S., Porto Neto, L.R., San Cristobal, M., Servin, B., McCulloch, R., Whan, V., and Gietzen, K. 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