Table 1.

Quantification of c-Kit⁺AA4.1⁺ cells in E9.5 embryos

		Exp. 1	Exp. 2	Exp. 3
No. embryos*		8	6	7
No. somite pairs†		21.1	23.8	28.2
No. c-Kit+AA4.1+CD45+Ter119− cells‡	CH	20	44	75
	YS	353	920	1,419

*The number of embryos analyzed. Pooled littermate embryos were used in each experiment.

^†The average number of somite pairs for the analyzed embryos.

^‡The average number of c-Kit⁺AA4.1⁺CD45⁺Ter119⁻ cells within the indicated location of an embryo estimated from the pooled analysis of caudal half (CH) and yolk sac (YS) cells.