Fig. 5

Summary of the major gene linkage systems (at least P ≤ 0.01) identified via comparing the daily gene expression patterns in three wheat cultivars. Boxes represent genes. Arrows indicate the positive (promotion—green) or negative (inhibition—red) associations between gene expression patterns. Arabidopsis orthologues of some key flowering genes in wheat are shown in parentheses. 18°Cvern/18 °C vernalized/, 18°Cuv/18 °C unvernalized/ and 25°Cvern/25 °C vernalized/. The presence of linkages between genes does not necessarily imply functional relationships among the investigated genes. CCA1, CIRCADIAN CLOCK-ASSOCIATED 1; CO1, CONSTANS 1; CRY1, CRYPTOCHROME 1; CRY2, CRYPTOCHROME 2; ELF3, EARLY FLOWERING 3; GI, GIGANTEA; LUX, ARRHYTHMO; PHYA, PHYTOCHROME A; PHYB, PHYTOCHROME B; PHYC, PHYTOCHROME C; PPD1, PHOTOPERIOD1; PRR95, PSEUDORESPONSE REGULATOR 95; TOC1, TIMING OF CAB EXPRESSION1; VRN1, VERNALIZATION1 (APETALA1) ; VRN2, VERNALIZATION2; VRN3, VERNALIZATION3 (FLOWERING LOCUS T).