Table. Laterality scoring^a in BCL6 MO, NBD-S or Notch1 MO injection.

Injection	Injection Side	Cardiac Orientation, Forward				Cardiac Orientation, Reverse
		Gut Origin Right		Gut Origin Left		Gut Origin Right		Gut Origin Left
		CCWb	CWc	CCW	CW	CCW	CW	CCW	CW	n
uninjected		95.4	2.3	0.8	1.5	0.0	0.0	0.0	0.0	130
<BCL6 MO>
40 ng Control MO	Left	96.1	1.3	2.6	0.0	0.0	0.0	0.0	0.0	76
20 ng Control MO	Left	97.8	1.1	1.1	0.0	0.0	0.0	0.0	0.0	89
40 ng BCL6 MO	Right	90.5	1.9	1.9	1.0	1.0	0.0	1.9	1.9	105
20 ng BCL6 MO	Right	90.7	1.9	3.7	0.9	0.9	0.0	0.9	0.9	108
40 ng BCL6 MO	Left	47.0	11.3	7.8	9.6	7.0	7.0	4.3	6.1	115
20 ng BCL6 MO	Left	59.5	20.2	6.0	9.5	1.2	2.4	0.0	1.2	84
40 ng BCL6 MO/2 ng mBCL6-GR	Left	89.4	4.3	1.1	2.1	1.1	1.1	1.1	0.0	94
20 ng BCL6 MO/2 ng mBCL6-GR	Left	85.7	3.1	2.0	1.0	1.0	2.0	2.0	3.1	98
<NBD-S>
1 ng NBD-S-GR	Left	70.0	7.0	6.0	3.0	5.0	2.0	4.0	3.0	100
2 ng NBD-S-GR	Left	55.0	11.0	9.0	4.0	4.0	3.0	8.0	4.0	98
<Notch1 MO>
150 ng Control MO	Left	83.7	2.4	8.1	2.4	0.8	0.8	0.8	0.8	123
80 ng Control MO	Left	91.3	3.6	2.2	2.9	0.0	0.0	0.0	0.0	138
150 ng Notch1 MO	Left	38.7	33.1	8.9	6.5	2.4	4.0	3.2	3.2	124
80 ng Notch1 MO	Left	57.1	22.7	4.2	1.7	3.4	3.4	4.2	3.4	119

^a)Lateral scoring according to Branford et al. (2000).

^b)Numbers indicate percentage of embryos displaying phenotype (total embryos as n)

^c)CCW: counterclockwise

^d)CW: clockwise