fkh-6::gfp expression in the L1 XX gonad was extended by removal of
tra-1 activity. Thus, whereas
fkh-6::gfp in wild-type XX animals was undetectable by late L1, its expression continued into late L1 in
tra-1(null) XX pseudomales; likewise, the L3 to adult expression of
fkh-6::gfp observed in wild-type XX hermaphrodites was absent in
tra-1 XX pseudomales.