Abstract:
:Variation at MHC Class II-DQA locus in riverine and swamp buffaloes (Bubu) has been explored in this study. Through sequencing of buffalo DQA, 48 nucleotide variants identified from 17 individuals, reporting 42 novel alleles, including one pseudogene. Individual animal displayed two to seven variants, suggesting the presence of more than two Bubu-DQA loci, as an evidence of extensive duplication. dN values were found to be higher than dS values at peptide binding sites, separately for riverine and swamp buffaloes, indicating locus being under positive selection. Evolutionary analysis revealed numerous trans-species polymorphism with alleles from water buffalo assigned to at least three different loci (Bubu-DQA1, DQA2, DQA3). Alleles of both the sub-species intermixed within the cluster, showing convergent evolution of MHC alleles in bovines. The results thus suggest that both riverine and swamp buffaloes share con-current arrangement of DQA region, comparable to cattle in terms of copy number and population polymorphism.
journal_name
Genomicsjournal_title
Genomicsauthors
Mishra SK,Niranjan SK,Singh R,Kumar P,Kumar SL,Banerjee B,Kataria RSdoi
10.1016/j.ygeno.2020.07.041subject
Has Abstractpub_date
2020-11-01 00:00:00pages
4417-4426issue
6eissn
0888-7543issn
1089-8646pii
S0888-7543(20)30251-2journal_volume
112pub_type
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