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Sahiwal, Tharparkar, Gir, Vechur, Ongole, Kangayam and Hariana were investigated in 132 random samples based on high density SNP array comprising\u2009&gt;\u2009777\u00a0K SNPs. A total of 1993 SNPs (0.25% of the total) having greater power (F<jats:sub>ST<\/jats:sub>\u2009\u2265\u20090.20) to differentiate these cattle populations were identified, and utilized to partition genome of each animal into a predefined number of clusters. The structure of these cattle indicated shared ancestry of dairy breeds viz. Gir, Tharparkar and Sahiwal. Most of the animals (&gt;\u200976%) of different populations under study except Vechur clustered into their own group of animals called breed. Vechur population retained highest rate of admixture, consistent with its crossing with other breeds. Ongole, Kangayam and Hariana shared comparatively less of their genome (\u2264\u200915%) with other breeds. The study indicated that all seven breeds evolved from their independent ancestry but there was intermixing of these breeds in the recent past. The selection signatures identified between draft (Kangayam) and dairy breeds included several genes like <jats:italic>FAM19A2, RAB31P, BEST3, DGKA, AHCY, PIGU<\/jats:italic> and <jats:italic>PFKP<\/jats:italic> which are involved in immune response, metabolic pathway, transportation of glucose and sugars, signaling pathways, cellular processes, cell division and glycolysis regulation, respectively. Moreover, these genomic regions also harbour QTLs affecting milk performance traits. The signatures were also identified even between the dairy breeds. In comparison to large-sized cattle, there were significant differences in the number of QTLs affecting production (body weight, growth rate etc.) and morphological traits (height) in short-statured Vechur breed. The presence of <jats:italic>HMGA2<\/jats:italic> gene in the selection signature on chromosome 5 may explain the variations in stature between these cattle.<\/jats:p>","DOI":"10.1038\/s41598-021-01144-2","type":"journal-article","created":{"date-parts":[[2021,11,9]],"date-time":"2021-11-09T11:02:38Z","timestamp":1636455758000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":45,"title":["Genome analyses revealed genetic admixture and selection signatures in Bos indicus"],"prefix":"10.1038","volume":"11","author":[{"given":"S. P.","family":"Dixit","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A. 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