Figure 7

Identification of candidate genes responsible for variety-specific differences in seed weight in Brassica juncea. Candidate genes regulating seed size/weight were identified from the literature. Seed size is mainly regulated by genes regulating cell proliferation or expansion in the seed coat, endosperm, or embryo. Those genes which showed differential expression between PJK and EH2 are shown here. Positive regulators are shown in blue and negative regulators are shown in red. Heatmaps are shown for orthologous transcripts in B. juncea transcriptome, only for the transcripts differentially expressed at early, middle, or late stages of seed development. Color coding for heatmap: white—not differentially expressed, green—upregulated in EH2, purple—upregulated in PJK. Yellow stars mark the transcripts that are good candidates responsible for variety-specific seed size differences based on our transcriptome analysis.