the dominant suppressor su ( var ) b101 and the dominant enhancer en ( var ) c101 were found to affect significantly white variegation in a strongly variegating line of the wm4 chromosome ( wm4h ) which has been used as standard rearrangement for a genetic dissection of position-effect variegation ( reuter and wolff , 1981 ) .
C0086222
enhancer
C0008633
chromosome