Table 1.

Secondary motoneuron defects in col15a1b morphants^{^a}

	52 hpf		72 hpf
	Total	RoP-like nerve	Total	RoP-like nerve			MiP-like nerve	CaP-like nerve	Common nerve
	embryos	Absence	embryos	Absence	Ventral projection	Branching	Absence	Absence	Branching
Uninjected	49	19.59 ± 4.04	44	15.45 ± 2.92	0.45 ± 0.32	0.23 ± 0.23	0.68 ± 0.38	0	0.23 ± 0.23
Ctl-MO	50	12.85 ± 2.31 (NS)	47	6.80 ± 1.58 (NS)	0.43 ± 0.29 (NS)	0.43 ± 0.30 (NS)	1.48 ± 0.6 (NS)	0.21 ± 0.21 (NS)	3.40 ± 1.15^**
tMO15b	51	85.88 ± 3.79^***	52	27.5 ± 3.73^*	9.03 ± 2.0^***	11.35 ± 2.18^***	59.04 ± 6.08^***	5.19 ± 2.10^*	6.35 ± 1.40^***
sMO15b	47	68.94 ± 5.07^***	44	29.32 ± 4.12^**	2.05 ± 0.62^*	2.95 ± 0.90^***	39.09 ± 5.90^***	3.18 ± 1.48^*	5.23 ± 1.36^***

↵^aQuantitative analysis of secondary motor axon/nerve defects per embryo under the different conditions. Results are expressed as mean frequencies of affected hemisegments per embryo ± SEM; 10 hemisegments per embryo were examined. NS, Nonsignificant.
↵*p < 0.05;
↵**p < 0.01;
↵***p < 0.001; Student's t test.