Global transcriptome analysis in developing main shoot apices in the Ubi::HvFT3 and null segregant lines. A, Venn diagram of transcripts differentially regulated between Ubi::HvFT3 (FT3ox) and the null segregant (Null seg.) at two different stages under LD and SD. B, Coexpression clustering of 391 DETs regulated between the Ubi::HvFT3 and null segregant genotypes at the spikelet initiation stage. Colors represent log2 fold changes (log2-FC) in expression levels relative to the mean transcript abundance across the tested conditions. LD, Long day; SD, short day; W2.0, Waddington stage W2.0; W3.0, Waddington stage W3.0.