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| Content Provider | Springer Nature Link |
|---|---|
| Author | Yakubu, Abdulmojeed Salako, Adebowale E. Donato, Marcos Takeet, Michael I. Peters, Sunday O. Adefenwa, Mufliat A. Okpeku, Moses Wheto, Mathew Agaviezor, Brilliant O. Sanni, Timothy M. Ajayi, Oyeyemi O. Onasanya, Gbolabo O. Ekundayo, Oludotun J. Ilori, Babatunde M. Amusan, Samuel A. Imumorin, Ikhide G. |
| Copyright Year | 2013 |
| Abstract | The DQB1 locus is located in the major histocompatibility complex (MHC) class II region and involved in immune response. We identified 20 polymorphic sites in a 228 bp fragment of exon 2, one of the most critical regions of the MHC DQB1 gene, in 60 Nigerian goats. Four sites are located in the peptide binding region, and 10 amino acid substitutions are peculiar to Nigerian goats, compared with published sequences. A significantly higher ratio of nonsynonymous/synonymous substitutions (d N/d S) suggests that allelic sequence evolution is driven by balancing selection (P < 0.01). In silico functional analysis using PANTHER predicted that substitution P56R, with a subPSEC score of −4.00629 (Pdeleterious = 0.73229), is harmful to protein function. The phylogenetic tree from consensus sequences placed the two northern breeds closer to each other than either was to the southern goats. This first report of sequence diversity at the DQB1 locus for any African goat breed may be useful in the search for disease-resistant genotypes. |
| Starting Page | 954 |
| Ending Page | 966 |
| Page Count | 13 |
| File Format | |
| ISSN | 00062928 |
| Journal | Biochemical Genetics |
| Volume Number | 51 |
| Issue Number | 11-12 |
| e-ISSN | 15734927 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2013-07-09 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Genetic diversity Exon 2 DQB1 gene MHC class II Nigerian goats SNPs Human Genetics Biochemistry Zoology Medical Microbiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Medicine Biochemistry Molecular Biology Ecology, Evolution, Behavior and Systematics |
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