tph-1::gfp expression in the ADF neurons of the dauers was on average 2.8-fold higher than that in their non-dauer siblings. In addition,
tph-1::gfp was ectopically induced in the ventral motor neurons in WT dauers as well as in
ocr-2 and
osm-9 mutant dauers. However,
tph-1::gfp expression levels in the NSM neurons were not significantly affected. Furthermore, the increase in
tph-1::gfp expression in ADF and the expression in the motor neurons both were diminished within 24 h after the dauers were allowed to recover under optimal growth conditions .