Marykutty Thomas, Radhika G, R Thirupathy V, Aravindakshan T V
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Genomic profiling of selective sweeps through haplotype differentiation unravelled genes associated with production and reproduction traits in Indian goat breeds.
A comprehensive genomic scan of selective sweeps was conducted in autochthonous Attappady Black and improved dual-purpose Malabari goat breeds in south India. High-throughput single nucleotide polymorphism (SNP) marker data, obtained through Illumina goat SNP50 BeadChip genotyping of 48 goats (24 each of Attappady Black and Malabari goats), were utilized for the analysis. Selection signature analysis, employing hapFLK analysis based on haplotype differentiation, identified seven significant sweep regions (p < 0.005). Notably, one of these regions encompassed the genomic area housing the casein cluster and quantitative trait loci associated with milk production on chromosome 6. Gene ontology enrichment analysis of 166 putative selective genes associated with these sweep regions revealed 13 significantly over-represented Panther pathways (p ≤ 0.05), including the TGF-beta signalling pathway and GNRHR pathway. The selective sweeps detected in this study contributed significantly to the phenotypic divergence observed between Attappady Black and Malabari goats in south India.
期刊介绍：
Tropical Animal Health and Production is an international journal publishing the results of original research in any field of animal health, welfare, and production with the aim of improving health and productivity of livestock, and better utilisation of animal resources, including wildlife in tropical, subtropical and similar agro-ecological environments.
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