
Possible integration and recombination events generatingSabrina unit LTR-2 — LTR-3. Two Sabrina elements are shown in dark and bright gray with the arrows denoting the LTRs. Nonelement DNA is in black with the ovals representing 5-bp direct repeats flanking Sabrina LTR-2 and LTR-3. The broken arrow line shows a deduced intraelement recombination event; dotted lines indicate corresponding positions; thin black lines denote a nestedSabrina insertion.











