Patterns of Natural Selection on Mitochondrial Protein-Coding Genes in Lungless Salamanders: Relaxed Purifying Selection and Presence of Positively Selected Codon Sites in the Family Plethodontidae

Table 4

Results of branch-site model analyses in Plethodontidae.

Branch	Gene	-2 ΔlnL ()		Positively selected sites
A	nad4	-8.3999	0.004	40
				352
	nad5	-9.5527	0.002	23
				241
				491
B	nad6	-0.0110	0.916
C	nad3	0.0000	1.000

Values with italic indicate . Positively selected sites were estimated by BEB analyses for genes which positive selection was detected by LRT. Only are shown. and represent and >0.99, respectively. Branch labels were referred to as Figure 1.