Table 2.

Linear mixed model analyses of relative fitness of all mutation accumulation line genotypes under either phosphate or NaCl stress

Data set	Model	Random effects	d.f.	N		F‐values	P‐value
All phosphate	Relative fitness = Stress level × Genotype	Plate Ancestor	104	609	Stress level	0.91	0.487
					Genotype	2.98	< 0.001
					Stress level × Genotype	0.78	0.923
All NaCl	Relative fitness = Stress level × Genotype	Plate Ancestor	104	609	Stress level	5.21	0.005
					Genotype	6.89	< 0.001
					Stress level × Genotype	1.41	0.016