eeEx100 [his-24::GFP + rol-6(su1006)]. Rollers. Nuclear GFP fluorescence detected beginning with the eight-cell stage of the embryo in all somatic nuclei without the P-cell. In adults the GFP signal in somatic cells and in few hermaphrodites in undifferentiated germ nuclei and in oocytes and sperm. About 20% transmission.