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The amounts of metabolites (A–G) in three chromosome segment substitution lines (B0341, B0331 and B0309), Enrei and Peking. Different letters indicate significant differences between lines (Tukey’s test, n = 3, P < 0.05). B0341, B0331 and B0309 possess the Peking-genomic segment tagged by the markers #89, #92 and #318, respectively.
