Identification and Expression of Capa Gene in the Fire Ant, Solenopsis invicta
Figure 7
Localization of CAPA-ir neurons in abdominal ganglia of adult female honeybee, A. mellifera.
As in A. sexdens, two immunoreactive ventral Va-cells are detectable in neuromeres 2–7. A) Va neurons in unfused abdominal ganglion 2 with axons projecting anterodorsally and leaving the ganglion into a PSO which is slightly protruded from the anterodorsal ganglionic sheath. B) Va neurons in fused abdominal neuromeres 6 and 7 which project into PSOs embedded in the dorsal ganglionic sheath. C) Example for the development of an abdominal PSO 7 that is well separated from the ganglionic sheath. Immunostaining in posterolateral cells with projection into segmental nerves cells likely resulted from cross-reactivity with unknown peptides. This was revealed by a comparison of mass spectra from abdominal PSOs and segmental nerves of unfused abdominal ganglia (not shown). PSO, perisympathetic organ; scale bar 50 μm.