A loss of
ceh-13::GFP expression in B in
lin-1(rf), indicating that there is a positive requirement for LIN-1 for
ceh-13/Hox1 expression in B. Furthermore, a loss of
ceh-13::GFP expression in B in
lin-1(gf) mutants was observed, suggesting that LIN-1 has a negative effect on
ceh-13/Hox1 expression in B. In addition,
ceh-13::GFP was ectopically expressed in B in
lin-1(rf) males, which suggests that LIN-1 inhibits B from expressing the B fate. Therefore, LIN-1 positively and negatively regulates transcription of
ceh-13.