Table 1.

Selectional strength

Gene set	ωmean	k	LR	P value
PS	R: 0.150, T: 0.225	0.72	27.9	<0.001
HK	R: 0.592, T: 0.559	6.71	75.7	<0.001
Others	R: 1.020, T: 0.961	1.69	23.0	<0.001
UG	R: 0.318, T: 0.678	5.63	66.5	<0.001

HK, housekeeping; k, selection intensity parameter (13); LR, likelihood ratio; Others, accD, clpP, ycf2; PS, photosynthesis; R, nonparasites + T. versicolor; T, obligate parasites; UG, universal genes.