Table 2. SNP heritability estimates per principal component axis.

The standard error of the estimate derived from LMM in GEMMA is shown. The heritability of molar shape is a weighted sum of the heritability per PC, the weights being the percentage of total variation represented by each PC.

PC	%var	Heritability per PC	Error	Molar herit
1	18.9	0.83	0.09	15.8
2	15.4	0.95	0.08	14.7
3	9.9	0.78	0.10	7.7
4	7.1	0.62	0.14	4.4
5	5.9	0.49	0.12	2.9
6	5.1	0.83	0.10	4.2
7	3.9	0.53	0.12	2.1
8	3.2	0.89	0.11	2.8
9	2.8	0.89	0.09	2.5
10	2.5	0.86	0.13	2.2
11	2.1	0.72	0.14	1.5
12	1.8	0.60	0.15	1.1
13	1.7	0.68	0.13	1.2
14	1.5	0.56	0.16	0.8
15	1.4	0.53	0.15	0.7
16	1.3	0.26	0.16	0.3
17	1.2	0.14	0.20	0.2
18	1	0.51	0.14	0.5
Total Var	86.7%
		pve for molar shape		65.50