DNA analysis of mice who received serial transplants.

(A) Results of DNA isolated from spleens of 4Dll4-overexpressing donors (C,D,E,F). (B) Results of DNA isolated from spleens of secondary (F-2nd, D-2nd, and C-2nd, also shown in Figure 5) and tertiary (C-3rd) recipients. Arrows in panel A indicate that the same clones were seen in secondary and tertiary recipients, shown in panel B.