Figure 3. Newly discovered X-box genes. (A)
xbx-2::gfp is expressed in most or all CSN. (B)
xbx-3::gfp is expressed in amphid and phasmid (not shown) neurons. (C)
xbx-4::gfp is expressed in a subset of amphid neurons. (D)
xbx-5::gfp is expressed in a subset of amphid neurons. (E)
xbx-6::gfp is expressed in many different types of cells, including the phasmid neurons PHA and PHB. (F)
xbx-7::gfp is expressed in a subset of amphid and interlabial neurons. (G)
tub-1::gfp is expressed in most or all CSN. (H) Schematic diagram of CSN positioning in the C. elegans hermaphrodite (after Collet et al., 1998).