Fig. 1From: Evaluation and breeding application of six brown planthopper resistance genes in rice maintainer line Jin 23BScheme of marker-assisted backcross breeding used in the current study. Donor parents included 4 cultivars: PTB33 (Bph3), B5 (Bph14/Bph15), IR65482–7–216-1-2 (Bph18) and IR71033–121-15 (Bph20/Bph21). MAS: marker-assisted selectionBack to article page