Immunolocalization of G protein alpha subunits in the olfactory system of Polypterus senegalus (Cladistia, Actinopterygii)

► G protein alpha subunits are immunodetected in the olfactory organs of the bichir. ► Gαolf-like immunoreactivity is detected in the ciliated receptor neurons. ► Gαolf-like immunoreactive glomeruli are in the ventral-posterior part of the bulb. ► Gαo-like-like immunoreactivity is detected in microvillous and crypt receptor neurons. ► Gαo-like-like immunoreactive glomeruli are in the anterior part of the olfactory bulb.