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    • Figure 1. 

      Genes and genetic pathways regulating grain size in bread wheat and rice. The components without underlines are positive regulators of grain size, and those with underlines are negative regulators. The short connecting lines represent the proteins that physically interact. The bond genes were selected during wheat breeding. The genes with the same colors are homologous gene between wheat and rice. References for the individual genes are listed in Supplemental Tables S1 & S2 for wheat and rice genes, respectively.