Fig. 2From: Heterosis analysis and underlying molecular regulatory mechanism in a wide-compatible neo-tetraploid rice line with long paniclesGenotypes of parental lines at pollen sterility loci (Sa, Sb and Sc) and S5 locus detected by molecular markers. First image indicates the genotypes at Sa locus, followed by (upper to lower) Sb, Sc and S5 locus. M indicates DNA ladder, lanes 1–4 indicate control cultivars (typical indica and japonica cultivars), while lanes 5–26 indicate neo-tetraploid/autotetraploid rice lines (see the name of materials in Additional file 2: Table S1). Lanes 25 and 26 in S5 were taken from another gelBack to article page