Abstract
Indian buffalo (Bubalus bubalis) breeds are acknowledged for their disease resistance power, hardiness and considerable milk production. River buffaloes are more disease resistance despite of tropical environment of India than cattle breeds of the world. The genetic polymorphisms of innate immune genes play a prominent role in disease susceptibility of livestock. Here in our study, we mainly focused on SNPs in ten selected candidate innate immune genes viz CHGA, CHGB, CHGC, Slc11a1, Slc11a2, DEFB1, BNBD4, BNBD5, LAP and TAP among three most economically important Indian buffalo breeds viz., Jaffrabadi, Mehsani and Murrah using amplicon sequencing on Ion torrent PGM sequencing platform. Polymorphism identification using by GATK tool of Unified Genotyper revealed 274, 245 and 224 high quality SNPs in Jaffrabadi, Mehsani and Murrah buffalo breeds, respectively as well as 168 common SNPs among these three breeds and uniquely detected SNPs were 31, 15 and 37 SNPs in Jaffrabadi, Mehsani and Murrah breeds respectively. Consequences of non-synonymous SNPs were analysed using several computational tools viz., I-Mutant, SIFT, PolyPhen and PROVEAN which identified three deleterious nsSNPs. This wealth of sequence information will be productive for conservation studies, selective breeding and designing future strategies for identifying disease associations.
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