Table 1.

The Number of Species-Specific Duplication Events, Paralogous ORs Retaining Function and Paralogous ORs Having Lost Function After Duplication, in Addition to the Average Per OR Family for Each Data Set Are Displayed.

	Total Duplications	Mean	Total Functional	Mean	Total non-functional	Mean
Genomic data (N = 58 mammals)
OR 1/3/7	3,948	68.07	2,680	44.66	2,444	40.73
OR 2/13	3,518	60.55	2,820	47	1,991	33.18
OR 4	3,138	54.10	2,505	41.75	1,967	32.78
OR 5/8/9	5,616	96.81	4,716	78.6	959	49.31
OR6	1,630	28.10	1,479	24.65	861	14.35
OR 10	1,336	23.03	1,415	23.58	539	8.98
OR 11	330	5.69	316	5.26	185	3.08
OR 12	149	2.57	128	2.13	74	1.23
OR 14	1,295	22.32	825	13.75	37	12.28
OR 51	659	11.36	709	11.81	341	5.68
OR 52	958	16.52	1,052	17.53	472	7.86
OR 55	11	0.19	11	0.18	9	0.15
OR 56	239	4.12	251	4.18	109	1.81
Total	22,826	393.55	18,907	315.11	12,688	211.46
Genomic + NGS data (N = 94 mammals)
OR 1/3/7	4,383	47.13	3,045	31.71	2,723	28.36
OR 2/13	3,809	40.96	3,110	32.39	2,175	22.65
OR 4	3,238	34.82	609	27.17	1,992	20.75
OR 5/8/9	6,096	65.55	5,250	54.68	3,187	33.19
OR6	1,635	17.58	1,502	15.64	853	8.88
OR 10	1,393	14.98	1,449	15.09	599	6.23
OR 11	352	3.78	345	3.59	192	2
OR 12	148	1.59	124	1.29	80	0.83
OR 14	1,307	14.05	37	8.71	737	7.67
OR 51	790	8.49	834	8.68	414	4.31
OR 52	1,003	10.78	1,108	11.54	499	5.19
OR 55	10	0.11	10	0.10	8	0.08
OR 56	244	2.62	255	2.65	118	1.22
Total	24,408	262.45	20,478	213.31	13,577	141.42

Note.—The nomenclature as described in Hayden et al. (2010) is used to classify and describe OR families and clusters.