Table 1.

LRT results and Ka/Ks value for human and chimpanzee OR genes

Locus (human name)	Human^a Dn/Ds	Chimpanzee^a Dn/Ds	LRT	P value^b
OR52H1	2.80	0.97	34.24	0.000001
OR5M3	0.78	0.48	25.98	0.000002
OR5M8	0.47	1.13	21.34	0.000023
OR11L1	1.00	0.78	20.23	0.000040
OR1L8	0.66	1.20	19.01	0.000074
OR52B2	0.79	0.33	18.26	0.000108
OR4F29	0.48	3.20	17.30	0.000175
OR6K2	2.03	0.71	17.13	0.000190
OR51G1	1.35	0.69	15.76	0.000378
OR4D11	1.73	0.68	15.76	0.000379
OR10G7	0.60	1.14	15.34	0.000468
OR4C11	0.67	0.84	15.11	0.000525
OR5AP2	1.10	0.92	14.19	0.000829
OR4D10	0.65	0.94	14.16	0.000841
OR51Q1	0.78	0.94	13.70	0.001059
OR56B2P	0.62	2.49	13.29	0.001297
OR1P1P	1.60	0.33	13.08	0.001444
OR4F13P	2.20	0.43	12.91	0.001576

↵a Dn/Ds values that seem indicative of positive selection are in bold.
↵b P values of the Likelihood Ratio test (LRT) of the null vs. alternative models.

A comparison of the human and chimpanzee olfactory receptor gene repertoires