Table 1. Summary of the frequency of Flt3-ITD mutations, chromosome 2 deletions and Sfpi1/PU.1 R235 point mutations in a panel of 30 radiation-induced AMLs induced on two different genetic backgrounds.

AML genetic background	Del2	Number of samples	Number with Flt3-ITD (%)	Number with Sfpi-1/PU.1 exon 5 mutation (%)
CBA/H × C57BL	+	17	0 (0.0)	14 (82.4)
	−	3	2 (66.7)	0 (0.0)
CBA/H	+	6	0 (0.0)	5 (83.3)
	−	4	1 (25)	0 (0.0)

Abbreviations: AML, acute myeloid leukaemia; Del2, chromosome 2 deletion.