In mutant embryos, the ganglion mother cells, GMC1-1a and GMC4-2a fail to divide into their normal progeny and appear to adopt aCC and RP2 neuron fates respectively. An approximately 10% loss of EL neurons is also seen.
Nint.hs, Rca133X16 has ganglion mother cell GMC4-2a phenotype
Nint.hs, Rca133X16 has ganglion mother cell GMC1-1a phenotype
Rca133X16, numb2 has ganglion mother cell GMC4-2a phenotype
Rca133X16, numb2 has ganglion mother cell GMC1-1a phenotype
Rca133X16, numb2 has ganglion mother cell phenotype
In Rca133X16, numb2 double mutants the GMC4-2a ganglion mother cell fails to divide and adopts the RP2sib neuron fate in about 1 in 2 cases. In Rca133X16, numb2 double mutants the GMC1-1a ganglion mother cell fails to divide and adopts the pCC neuron fate in about 3/4 of cases. In Rca133X16, numb2 double mutants the ganglion mother cell that normally mothers the U/CQ and U/CQ sibling neurons fails to divide and often adopts the U/CQ sibling neuron fate.