Fig. 6

Some OMP class OSNs express TAARs instead of ORs. a TAAR expression profiles were generated from pools of FAC sorted OMP or TRPC2 class OSNs collected from 2 dpf OMP:Venus or TRPC2:RFP embryos. The dashed line demarcates the 1 cpm expression level in the pool as a whole. A wide variety of TAAR receptors were more prominently expressed in OMP as compared to TRPC2 class neurons. b A portion of OSNs labeled by in situ probes for each of the three TAAR receptors overlapped with OMP transgene expressing cells at 3 dpf. None of the TAAR expressing OSNs overlapped with TRPC2 transgene expressing cells. c OR and TAAR expression are mutually exclusive at 3 dpf. Overlapped expression (arrowheads) was extremely rare in double in situs with TAAR probes co-labeled with cocktails of either or111 or or133 subfamily probes