Separation of LMW-GS genes in Aroona NILs using the LMW-GS gene molecular marker system. The marker system contained three sets of primers, LMWGS1, LMW-GS2 and LMWGS3. The main data were derived from primer set LMWGS1, and the added figures were from the primer LMWGS3b or LMWGS3c. The peaks marked with the asterisk comprise two genes, A3-620 and B3-621. The arrows indicate unique genes in each Aroona NIL.