FLVCR deletion does not impair hematopoietic reconstitution during competitive, serial transplantation. C57Bl/6 mice were transplanted with equal numbers of FLVCR-deleted bone marrow or wild-type Cre⁺ bone marrow and GFP⁺ competitor bone marrow cells. The proportion of granulocytes arising from either FLVCR-deleted or wild-type Cre⁺ cells were distinguished from GFP⁺ competitor cells by flow cytometry. Black circles represent competitive transplantation with FLVCR-deleted donor cells. Open squares represent competitive transplantation with wild-type Cre⁺ donor cells. *P ≤ .05.