Transcriptional Orchestration of the Global Cellular Response of a Model Pennate Diatom to Diel Light Cycling under Iron Limitation
Fig 4
Light harvesting antenna protein expression.
(A) Heat map shows min/max transcript abundance (RPKM across Fe conditions, plotted on a log scale). Dendogram shows hierarchical clustering (Pearson correlation) of RPKM values with corresponding module assignment from the WGCNA clustering analysis. Expression clades are labeled to indicate Fe-response types (high Fe, low Fe). Dominant protein family composition of expression clades (Lhcf/Lhcr and Lhcx/Lhcz) is also indicated. Gene identifiers (Phatr3 protein IDs) can be found in S3 Fig. (B) Selected expression patterns of Fe-sensitive light harvesting complex antenna proteins from the Lhcx, ac2, and Lhcz families. Lhcz (Phatr3_J16481) is from the red module and is indicated on the heat map with a red arrow.