Mapping of the duplications onto the cattle BPI-like locus: The position of the genomic duplications is shown as shaded boxes above the line. The position of the intact genes is indicated by shaded arrows while the pseudogene is indicated by an unshaded arrow. The stippled bars with arrows indicate the position and direction of the L1Bt LINE element while the shaded vertical bars with arrows indicate the position and direction of the RTEBt1 LINE element.
Wheeler et al. BMC Genomics 2007 8:75 doi:10.1186/1471-2164-8-75