Figure 3

A comprehensive photosynthesis pathway depicting differentially expressed unigenes in multi-subunit complexes (photosystem I and II, NADH dehydrogenase and ATP synthase) participating in light-dependent reactions. The different subunits differentially regulated of each components (identified by differential gene expression analysis) are indicated in red and their expression patterns at different time points (90, 180, 270 and 360 DAT) in elevated CO₂ grown plants with respect to ambient plants are represented. Different colour shades represent level of expression with red representing up-regulation while green as down-regulation. The level of regulation was determined based on log₂ fold change. The four different boxes beneath each differentially regulated gene represents the four time points starting from 90 DAT to 360 DAT (direction: left to right). [Abbreviations for different subunits: PSII reaction centre core protein, D1 protein (PsbA); PS (II) CP47 chlorophyll apoprotein (PsbB); PS (II) CP43 chlorophyll apoprotein (PsbC); subunit of oxygen evolving complex protein (PsbP); PSI P700 chlorophyll a apoprotein A1 (PsaA); NADH dehydrogenase or NDH-1 plastoquinone reductase subunits B and K; petH; ferredoxin-NADP⁺ reductase (FNR); F-type H⁺-transporting ATPase subunit beta (FTA)].