Table 1. Results of branch model tests of selection pressure on the Slc2a4 gene in bats.

Model	np	ℓ	ω0 a	ωOW a	ωNW a	Model Compared	2Δℓ	P
A. One ratio: ω0 = ωOW = ωNW	45	−7140.94	0.088	= ω0	= ω0
B. Two ratios: ω0 = ωOW, ωNW	46	−7140.93	0.088	= ω0	0.098	B vs. A	0.02	0.887
C. Two ratios: ω0 = ωNW, ωOW	46	−7137.92	0.085	0.257	= ω0	C vs. A	6.03	0.014
						D vs. A	6.08	0.048
						D vs. B	6.06	0.014
D. Three ratios: ω0, ωOW, ωNW	47	−7137.90	0.085	0.257	0.099	D vs. C	0.04	0.839
E. Free ratio	87	−7116.96	—	—	—	E vs. A	47.94	0.244

^aω_OW, ω_NW and ω₀, are the ω ratios for branches OWFBs, NWFBs, and other branches, respectively (see Figure 1b).