Table 3.

Selective pressure analyses of the mitochondrial genes of sea anemones

Gene	Branch‐site model							Model compared	2△lnL	LRT p‐value	Positive sites
	Model	ln L	Estimates of parameters
ATP6	Model A	−3,368.2077	Site class	0.0000	1.0000	2a	2b	Model A versus Model A null	2.1423	.1433	31 L 0.994** 42 N 0.991**
			Proportion	0.0000	0.0000	0.9291	0.0709
			Background ω	0.0719	1.0000	0.0719	1.0000
			Foreground ω	0.0719	1.0000	999.0000	999.0000
	Model A null	−3,369.2788
ND5	Model A	−9,573.8530	Site class	0.0000	1.0000	2a	2b	Model A versus Model A null	0.3829	.5360	570 S 0.978*
			Proportion	0.0000	0.0000	0.9074	0.0926
			Background ω	0.0815	1.0000	0.0815	1.0000
			Foreground ω	0.0815	1.0000	26.8046	26.8046
	Model A null	−9,574.0445

Trees	Branch model			Model compared	2△ln L	LRT p‐value
	Model	ln L	Estimates of parameters
NJ	Model 1	−58,898.9152		Model 1 versus Model 0	477.4924	.0000
	Two‐ratio	−59,137.6137	ω0=0.0968 ω1=0.0795	Two‐ratio versus Model 0	0.0954	.9534
	Model 0	−59,137.6614	ω=0.0968
ML	Model 1	−58,898.6539		Model 1 versus Model 0	478.0150	.0000
	Two‐ratio	−59,137.6137	ω0=0.0968 ω1=0.0796	Two‐ratio versus Model 0	0.0954	.9534
	Model 0	−59,137.6614	ω=0.0968

*posterior probability >95%; **posterior probability >99%.