TABLE 2.

Magnitude and sense of fitness differences between mutant and parental genotypes

Virus genotype	Wma	Wpb	Wm − Wp	Pc
MG-M138N	1.197	1.207	−0.010	0.650
MG-A86G	1.142	1.207	−0.066	0.017
MG-(L13F+G66V)	1.013	1.029	−0.015	0.477
MG-L13F	1.042	1.029	0.013	0.658
MG-G66V	0.925	1.029	−0.104	0.001
MG-(T43K+D50G)	0.988	1.029	−0.041	0.312
MG-T43K	0.926	1.029	−0.102	0.001
MG-D50G	1.060	1.029	0.031	0.259

^aW_m, average fitness of the mutant in each host at 21 dpi.

^bW_p, average fitness of the parental genotype MG-WT.

^cFitness differences significant at a P value of ≤0.05 level according to an LSD analysis are underlined.