LAM-PCR analysis of the clonal repertoire repopulating the BM of primary and secondary FA-D1 recipients transplanted with genetically corrected FA-D1 grafts. The figure represents the clonal repertoire detected in the BM of primary (6 months after BMT) and secondary recipients (9 months after secondary BMT) originally transplanted with BRCA2- and EGFP-transduced FA-D1 BM cells (see protocol in Figure 6A). Arrows indicate the position of the internal band. * indicates nonspecific bands that were amplified in different LAM-PCR analyses.