In wild-type animals of both sexes,
fkh-6::GFP expression began in the SGPs at about 6 hr after hatching. By contrast,
fkh-6::GFP expression was either delayed or absent in the SGPs of
cyd-1(
q626) mutants in both sexes. In those
cyd-1(
q626) mutants that did express
fkh-6::GFP, that expression ceased as normal in both hermaphrodites (just after the SGP division) and males (several hours after the SGP division). Therefore,
cyd-1 does not affect the sexually dimorphic nature of
fkh-6 expression.
cyd-1 controls
fkh-6 expression specifically in the SGPs of both sexes.