Figure 6

Lineage and birth-order of the local interneurons (LNs) and projection neurons (PNs) arising from the lateral neuroblast (lNb). Clones were generated at the times indicated. (A-I) Note that the multiglomerular LNs are born throughout larval life (A-F) and the uniglomerular lPNs appear only from 48 h after larval hatching (ALH) (G-I). (J) A single-cell clone of a PN with oligoglomerular projections. The cell body is marked with a yellow arrowhead and projections to the higher brain centre are marked with yellow arrows. (K) Three-dimensional reconstruction of a multiple cell clone generated at 72 h ALH showing cell bodies of previously undescribed PNs (green cell bodies shown within the white dotted lines), which send neurites to the antennal lobe (not shown in the reconstruction) and some tracts project out of the lobe to non-olfactory neuropiles (light blue axonal tracts), ipsilaterally as well as contralaterally (white arrowheads). PN projections from this clone are indicated in pink.