The complete swine olfactory subgenome: expansion of the olfactory gene repertoire in the pig genome

BMC Genomics

Table 4 Potential associations between pig olfactory receptor gene clusters and odorant recognition

Pig OR cluster	Mouse and human ORs with known odorant recognition¹	Pig ORs with sequence similarity	Amino acid sequence identity( %)	Recognized odorant(s)	Perceived odor
9-4	Olfr2	sOR6T9	90	n-aliphatic aldehydes	Fatty
9-4	Olfr690	sOR52I8	89	n-aliphatic acids/alcohols	As above
12-51	OR1D2	sOR1N1	87	Bourgeonal	Lily of the valley
4-99	Olfr16	sOR10D1	85	Lyral	Lemony, green
7-82	Olfr49	sOR6I1	85	(−) citronellal	Lemon
7-84	Olfr749	sOR11A6	85	n-aliphatic acids	Rancid, sour, sweaty, fatty
9-5	Olfr653	sOR52J1	85	n-aliphatic acids/alcohols	As above
9-5	Olfr642	sOR51C2	83	n-aliphatic acids	As above
9-57	Olfr151	sOR8O1	81	Acetophenone	Floral/woody
2-159	Olfr73	sOR5I2	80	Eugenol	Spicy
9-2	Olfr480	sOR5AA3	79	n-aliphatic alcohols	Herbal, woody, orange, rose
9-4	Olfr661	sOR53B4	79	n-aliphatic acids/alcohols	As above
9-6	Olfr69	sOR52D3	79	n-aliphatic acids/alcohols	As above
1-295	Olfr74	sOR1L2	74	Ethyl vanillin	Vanilla
2-14	Olfr154	sOR5T3	74	2-Heptanone	Fruity
1-295	Olfr50	sOR1L7	73	I-carvone	Spearmint, caraway
9-4	Olfr683	sOR53A1	73	n-aliphatic acids/alcohols	As above
3-8	Olfr56	sOR2N1	60	Limonene	Lemon
9-4	Olfr672	sOR52I10	57	n-aliphatic acids	Rancid, sour, sweaty, fatty
9-5	Olfr586	sOR51V2	52	n-aliphatic acids	As above
9-6	Olfr545	sOR52H3	42	n-aliphatic dicarboxylic acids
-	OR3A1	-	-	Helional	Sweet, hay-like

Note: A dash (−) indicates the absence of corresponding pig ORs. The order of pig OR clusters was based on the amino acid sequence identity (4th column).

ISSN: 1471-2164