Characterization of swine short interspersed repetitive sequences

Abstract
Summary. Swine genomic DNA segments containing repetitive sequences were isolated from a porcine genomic library using genomic DNA as a probe. Three fragments containing the repetitive sequences from two of the primary phage clones were subcloned for sequence analysis, which revealed six new PRE‐1 repetitive families other than those reported earlier by Singer et al. (Nucleic Acids Research 15, 2780, 1987). The frequency of the repetitive sequences in the swine genome was estimated at 2 times 106 per diploid genome. Sequence analysis revealed similarities between these repetitive sequences and that of arginine‐tRNA gene.