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Sequence alignment of five genomic Hbr elements and Hbr-hm1 (Hbrhm). The sequences were aligned with pileup program of the Wisconsin GCG computer package (version 8.01) with a gap penalty of 3.0 and gap length penalty of 0.1, and visualized by using boxshade (GCG). Long arrows are over the TIRs, and short arrows indicate the flanking direct repeats.
