fasciculates with develops from expresses sends synaptic output throughout has sensory dendrite in Or88a adult antennal lobe commissure antennal lobe glomerulus VA1d antennal olfactory receptor neuron precursor Naa antennal olfactory receptor neuron of trichoid sensillum adult antennal lobe receptor neuron bilateral antennal lobe receptor neuron adult pheromone-sensing neuron antennal trichoid sensillum at4 adult olfactory receptor neuron Or88a VFB:FBbt_00067057 ORN_VA1d fly_anatomy.ontology ORN (Or88a) ORN at4C FlyBrain_NDB:10427 FBbt:00067057 Adult olfactory receptor neuron (ORN) that expresses Or88a (Benton et al., 2025). Its dendrite transduces signals from antennal trichoid sensillum at4 (Couto et al., 2005; Grabe et al., 2016). It responds to a pheromone secreted by males and females (van der Goes et al., 2007). It innervates the antennal lobe glomerulus VA1d bilaterally, fasciculating with the antennal lobe commissure (Kaur et al., 2019). It develops from an Naa precursor (Benton et al., 2025). There are approximately 40-50 on each side (Benton et al., 2025). DoOR:Or88a odorant receptor neuron VA1d T2B ORN odorant receptor neuron Or88a ORN at4X ORN at3c ORN Or88a designated as 'at4B' neuron in Gonzales et al. (2021) - FBrf0250923 based on having second largest soma in three-neuron sensillum and presence in two-neuron at4 sensilla. Designated as 'at4C' in Benton et al. (2025) - FBrf0262710. ORN_VA1d adult ORN Or88a T3C ORN