Expression of embryonic and adult hemoglobin by erythroid bursts and erythrocyte-containing mixed colonies derived from 8.5 dpc YS cells and their progenies cocultured with AGM-S3 cells for 4 days.

Lane 1: an erythroid burst derived from 8.5 dpc YS cells. Lane 2: a hematopoietic mixed colony derived from 8.5 dpc YS cells. Lane 3: an erythroid burst derived from the cells cultured from 8.5 dpc YS cells on AGM-3 cells for 4 days. Lane 4: a hematopoietic mixed colony derived from the cells cultured from 8.5 dpc YS cells on AGM-3 cells for 4 days. Lane 5: a granulocyte/macrophage colony derived from 8.5 dpc YS cells. Lane 6: adult BM cells. Lane 7: 8.0 dpc YS cells.