Table 2.

Likelihood ratio tests for divergence in selective pressure among FUNDC1 and FUNDC2 in vertebrates by using clade model C.

2 × ΔLn L (M2a_rel vs. Clade Model C)a	P-value	Site class	pb	ωClade_FUNDC1c	ωClade_FUNDC2c
35.547	2.5E-09	0	0.57	0.018	0.018
		1	0	1	1
		2	0.43	0.089	0.248

^aΔLn L = Ln L1 – Ln L0, where Ln L1 was the likelihood value of clade model C and Ln L0 (-5431.051) was the likelihood value of null model M2a_rel. Degrees of freedom = 2.

^bProportion of sites evolving under different site classes.

^cMeasure of natural selection acting on the FUNDC1 clade (ω_{Clade_FUNDC1}) or FUNDC2 clade (ω_{Clade_FUNDC2}).