Table 3. Chromosomal distribution of genes encoding individual OR subfamilies.

Intact OR genes per locus*		Loci per subfamily†		Subfamilies per locus‡
No. of OR genes	No. of loci	No. of subfamilies	No. of loci	No. of subfamilies	No. of loci
0	13	156	1	1	16
1	11	14	2	2	7
2	8	2	3	3	2
3-8	7			4	2
11-17	7			5	2
23	1			6	0
24	1			7	1
29	1			9-17	6
49	1			23	1
56	1			35	1

^*Number of OR gene loci with 0-56 intact OR genes

^†Number of subfamilies whose members are encoded at 1-3 loci

^‡Number of loci that encode members of 1-35 subfamilies