Fig. 6. Phosphatidylethanolamine (PE) biosynthesis pathway (A) and the population and temperature acclimation effects on expression of genes encoding enzymes in this pathway, as well as a fatty acid desaturase (B). Shown are least square means ± 1 standard error and significant fixed effects from mixed-model ANOVAs. Units of expression are (1/Ct)x1000. Fold expression changes were calculated from serial dilution standard curves. CDPET, CDP-ethanolamine diglyceride transferase; PECT, phosphoethanolamine cytidylyltransferase; SPLY, sphinganine-1-phosphate lyase. ^*P<0.05, ^**P<0.01, ^****P<0.0001.