Antagonistic interactions peak at intermediate genetic distance in clinical and laboratory strains of Pseudomonas aeruginosa

Table 1 Linear and quadratic regressions of inhibition of clinical isolates by sterile (non heat treated) cell free extract of PA01 and PA14 cultures as function of genetic distance (Figure 2)

Source	df	Value	St Error	t	P-value	Multiple R²	AIC
PA01 Linear model					0.072	0.059	90.91
Intercept	1	3.27	0.969	3.38	0.0014
Linear term	1	-2.41	1.31	-1.84	0.072
Residual SE	53		0.55
PA01 Quadratic model					0.010	0.160	86.94
Intercept	1	-17.00	8.81	-2.08	0.043
Linear term	1	53.94	22.61	2.38	0.021
Quadratic term	1	-38.89	15.58	-2.50	0.016
Residual SE	52		0.53
PA14 Linear model					0.15	0.044	39.80
Intercept	1	1.99	0.71	2.81	0.0072
Linear term	1	-1.45	0.98	-1.48	0.15
Residual SE	47		0.36
PA14 Quadratic model					< 0.0001	0.345	26.08
Intercept	1	-37.51	8.62	-4.35	0.0001
Linear term	1	109.8	24.23	4.53	< 0.0001
Quadratic term	1	-77.88	16.95	-4.59	< 0.0001
Residual SE	46		0.30

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