Zebrafish whole kidney marrow irradiation recovery experiments were performed. a, Representative FSC/SSC FACS profiles of haematopoietic cell lineages in the kidney marrow on days 0, 4, 7, 10 and 14 of irradiation recovery in DMSO and dmPGE2-treated (50 μM) zebrafish. b, Kinetics of kidney marrow reconstitution of precursor, lymphoid and myeloid cells in control and dmPGE2-treated fish. Statistically significant differences: †, 50 μM versus control; ‡, 50 μM versus 10 μM, and 50 μM versus control; and §, all variables significant (ANOVA, *P < 0.05; mean, s.d. and n listed in Supplementary Table 3).