Data from two biological replicate samples of developing wheat caryopses. Upper panel: grain fresh weight and dry weight (error bars are least significant difference at P < 0.05 from 1-way analysis of variance). Lower panel: transcriptome of samples measured on wheat Affymetrix arrays. Each line depicts average signal from two replicate samples for a probeset coloured according to expression at 6 days after anthesis (daa). Gene set is those showing significant (P < 0.05; Benjamini-Hochberg false discovery rate multiple-testing correction) differences in expression between stages (14,550 probesets).