Journal
INDIAN JOURNAL OF ANIMAL SCIENCES
Volume 93, Issue 8, Pages 802-805Publisher
INDIAN COUNC AGRICULTURAL RES
DOI: 10.56093/ijans.v93i8.136161
Keywords
Bhutia; Copy number variation (CNV); Copy number variation region (CNVR); Equine; Genes
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Copy number variants (CNVs) are large DNA fragments (>1 kb) that are duplicated or deleted. There is a lack of research on CNVs in animals, especially equine. This study investigates the genomes of Bhutia equines and identifies 619 CNVs, which could have significant implications for economically advantageous genetic features in this breed.
Copy number variants (CNVs) have dynamic potential and evolutionary significance like other genetic variants, Discovering CNVs leads to further speculation that the genomic DNA contains more changes than previously thought and contributes to the phenotypic variation. CNVs are big DNA fragments (> 1 kb) being duplicated or deleted. A bridge between CNVs and phenotypic variations supports CNVs to be utilized in GWAS, which are currently mostly based on SNPs. CNV, which refers to the structural differences, influence gene expression and can be an indicator of numerous traits for improvement. There is a severe dearth of research on CNVs in animals, especially equine. The present study investigates the genomes of the Bhutia Equine breed for genome-wide discovery of CNVs using the Axiom (TM) Equine Genotyping Array chip for a better understanding of its traits which had been unexplored till date. A total of 619 CNVs from 20 Bhutia equines were identified with the median and average size as 49.394 kb and 114.955 kb, respectively. Total 225 frequent CNVRs with > 1% CNV frequency were identified among them along with singleton type. These CNVRs contained 361 genes in all. The information obtained on genomic variation could be utilized to identify economically advantageous genetic features in Bhutia equine breed.
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