CHARACTERISATION OF BOVINE LYMPHOCYTE ANTIGEN BOLA-DRB3.2 ALLELES IN INDIAN ONGOLE (Bos indicus) CATTLE BY PCR-RFLP AND PCR-SBT
2022
R. Saravanan | N. Murali | D.N. Das | A.K. Thiruvenkadan | S.Velusamy
inconnu. Bovine Lymphocyte Antigen DRB3 (BoLA-DRB3), a gene of the major histocompatibility complex (MHC) has received attention because this is considered to be a potential genetic marker associated with disease resistance traits in cattle. Hence, a study was taken up to characterize BoLA-DRB3.2 alleles in the 60 Ongole animals. The most common alleles observed in Ongole cattle was *15 and *6 with frequency of 0.225 and 0.200, respectively. Of the 22 identified alleles detedted, these 7 allleles (BoLA-DRB3.2*15,*6,*12,*13,*23, *31 and *47) represented 77.5 percent of allelic frequencies. Result indicated that the BoLADRB3 exon 2 was highly polymorphic in Ongole cattle. Direct sequencing BoLA-DRB3.2 allele reveled that at nucleotide at position 91 and 133 of the sequence had both A and G nucleotides in contrast to T nucleotide of Bos taurus breed and the variations leads to different band pattern in gels.
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