VS2 [FBbt_00007518]

VS2

ID: FBbt_00007518

Vertical system neuron whose dendritic tree within the lobula plate partially overlaps with that of vertical system neuron 1 (VS1) but extends more medially. Its major dendritic shaft sweeps from dorsal to ventral. Its dendritic tree is less highly branched than that of VS1 and is very flattened in the anterior-posterior axis, with all of its dendritic structures among the posterior dendrites of the vertical system (Scott et al., 2002). Its receptive field of vision is in between the receptive fields of VS1 and VS3. It is electrically coupled to VS1 and VS3 (Joesch et al., 2008). There is a small patch of innervation into lobula plate layer 2, but the majority is in layer 4 (Boergens et al., 2018).

Electrical coupling was shown indirectly by neurobiotin dye coupling in vertical system cells labelled using the P{GAL4}DB331 driver (FBti0115113) (Joesch et al., 2008). Due to its morphology and functional similarity, this cell is judged to be homologous to the VS2-VS6 cells in the blowfly (Scott et al., 2002).