List of phosphoprotein spots with differential expressions between superior and inferior spikelets in 3 grain-filling stages.

Note:aphosphoproteins number,bphosphoprotein spots number correspond to those on 2-DE gels shown in Fig. 4;cscore;dtheoretical MW (kDa) and pI.eMatch peptides;fchanges of phosphoprotein spots in inferior spikelets as compared to superior spikelets, UR: phosphoprotein upregulated in inferior spikelets as compared to superior spikelets; DR: phosphoprotein downregulated in inferior spikelets as compared to superior spikelets; EGS: early grain-filling stage, MGS: mid-grain-filling stage, LGS: late grain-filling stage.