Table 4. Results of multiple QTL mapping (MQM) for factors controlling blue color.

	df	LOD	PVE	P-value (χ2)
Full model	31	63.25	57.54	<0.000001
Drop one QTL at a time ANOVA table:
	df	LOD	PVE	P-value (χ2)	Sig.
sex	9	28.22	19.77	<0.000001	***
7@44.2	10	13.76	8.70	<0.000001	***
LM22@0.8	4	13.53	8.54	<0.000001	***
5@27.9	6	10.08	6.21	<0.000001	***
14@42.1	4	9.85	6.06	<0.000001	***
6@43.8	4	8.79	5.37	<0.000001	***
15@15.7	4	7.29	4.41	<0.000001	***
18@39.8	6	5.77	3.45	<0.000001	***
sex:LM22@0.8	2	8.41	5.13	<0.000001	***
5@27.9:7@44.2	4	8.05	4.89	<0.000001	***
sex:14@42.1	2	6.38	3.83	<0.000001	***
sex:6@43.8	2	5.78	3.46	<0.000001	***
7@44.2:18@39.8	4	4.11	2.43	0.001	**
sex:15@15.7	2	4.07	2.40	<0.000001	***

Abbreviations: ANOVA, analysis of variance; LOD, logarithm of the odds; PVE, percentage variance explained; QTL, quantitative trait loci.

The log-likelihood score (LOD), PVE and the X² P-value for the full model are indicated in the top portion. The lower portion of the table represents the results of dropping a factor from the model one at a time. Putative QTL are indicated as chromosome@position in centimorgans (cM), ‘sex' represents inclusion of sex as a cofactor and epistatic interactions are indicated by factor:factor notation. Significant results are indicated as *P<0.05, **P<0.005 and ***P<0.0005.