Abstract
A candidate-gene high-density single-nucleotide polymorphism (SNP) scanning approach was used to investigate the swine LUMAN/CREB3 locus for polymorphisms in 232 Ontario Yorkshire and 29 Chinese Meishan pigs. Inter- and intra-breed differences in genetic diversity were characterized. In the Yorkshire breed, eight variations (three coding and five non-coding) were identified. Two linkage disequilibrium (LD) blocks (550 bp and ∼4 kb in length) featuring two and three haplotypes, respectively, were reconstructed. In the Meishan breed, six variations (two coding and four non-coding) and one LD block (∼3 kb in length) with three haplotypes were detected. This investigation may provide insight into variable stress responsiveness among pigs.
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