Figure 2

Further fine-mapping of Scmv1 in two RIL populations. The genetic structure for each recombinant type is depicted as green and red rectangles, (green symbolizes the fragment from resistant parents, chang7-2 or X178; red symbolizes the fragment from susceptible parents, Zheng58 or HuangC). The star represents allele at the Scmv2 locus on chromosome 3 (green symbolizes resistance allele from Chang7-2 or X178; red symbolizes susceptibility allele from Zheng58 or HuangC). The light-green bars on the right represent the average percentage of plants with SCMV symptoms based on three independent experiments in greenhouse. A) The Scmv1 locus can be delimited to a 215.47-kb region in RIL population Zheng58×Chang7-2. B) The Scmv1 locus can be delimited to a 59.21-kb region flanked by markers 579P4 and SNP3 (in red dash-dot lines) in RIL population HuangC×X178.