Table 1. Branch-site tests for positive selection of the foreground branch of expanded ant-specific chemosensory proteins (CSPs) and each Camponotus CSP branch.

	-Ln (likelihood)		LRT
	Model_A Alt	Model_A Null	df	p-value	q-value
Ant expansion	33568.1	33572.6	1	0.002	0.037
CSP1	33572.7	33572.7	1	1	1
CSP2	33572.7	33572.7	1	0.984	1
CSP3	33572.3	33572.6	1	0.421	1
CSP4	33572.7	33572.7	1	1	1
CSP5	33569.7	33570.6	1	0.180	0.586
CSP6	33572.7	33572.7	1	1	1
CSP7	33572.7	33572.7	1	1	1
CSP8	33571.6	33571.6	1	1	1
CSP9	33572.5	33572.7	1	0.561	1
CSP10	33569.4	33571.8	1	0.029	0.191
CSP12	33571.1	33572.7	1	0.076	0.332
CSP13	33572.6	33572.6	1	0.775	1