Table 1. obe3-2 enhances the meristem defects of weak and intermediate wus alleles.

			% of phenotype (of germinated seeds)
			seedling (10 DAG)				shoot (51DAG)
genotype of mother plant	n	ng	wt-like	wus-7 like	wus-1 like	retard1	wt-like	wus-6 like	wus-1 like	disorganized leaves, no stem	arrest2
Ler	244	42	99.5	0.0	0.0	0.5	99.0	0.0	0.0	0.0	1.0
obe3-2	51	2	98.0	0.0	0.0	2.0	98.0	0.0	0.0	0.0	2.0
wus-1/+	202	3	69.9	0.0	28.1	2.0	68.8	1.5	24.6	4.0	1.1
obe3-2 wus-1/+	205	2	75.9	0.0	20.7	3.4	69.5	3.9	1.5	19.7	5.4
wus-6/+	245	0	73.5	0.0	25.3	1.2	73.1	25.7	0.0	0.0	1.2
obe3-2 wus-6/+	212	1	74.4	0.0	24.2	1.4	74.4	0.0	0.0	23.7	1.9
wus-7/+	237	2	94.0	5.6	0.0	0.4	79.6	19.5	0.0	0.0	0.9
obe3-2 wus-7/+	228	4	93.8	4.9	0.4	0.9	75.4	19,2	0.0	4.5	0.9

Seedling phenotype classes: wt-like, shoot meristem forming a rosette of leaves; wus-7-like; shoot meristem termination after true leaves have been formed, wus-1-like: shoot meristem termination without any leaves.

Shoot phenotype classes: wt-like, rosette, indeterminate inflorescence; wus-6-like, disorganized leaves, indeterminate inflorescence; wus-1-like, disorganized leaves, stop-and-go inflorescence rarely forming flowers.

DAG, days after germination; n, number of plants analyzed; ng, not germinated;

¹, retard: small whitish seedlings with retarded growth and cotyledons only.

², arrest: plants stopped development at seedling stage.

Chi-square test results for the seedling phenotype difference between:

wus-1/+ vs obe3-2 wus-1/+, p>0.05, not significant

wus-6/+ vs obe3-2 wus-6/+, p>0.05, not significant

wus-7/+ vs obe3-2 wus-7/+, p>0.05, not significant

Chi-square test results for the shoot phenotype difference between:

wus-1/+ vs obe3-2 wus-1/+, p<0.0001, highly significant

wus-6/+ vs obe3-2 wus-6/+, p<0.0001, highly significant

wus-7/+ vs obe3-2 wus-7/+, 0.01<p<0.05, significant