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The SSCP analysis results and the single nucleotide variations identified in the SLA-DRA gene of Yantai black pigs. Unique PCR-SSCP results (A) representing different genotypes were detected in exon 1, 3 and 4. The coordinates of SNPs were annotated (B) based on the swine SLA-DRA reference sequence (accession no: AY303990) in GenBank.
