Fig. 6

Classification of KOG-identified DEGs into KOG categories under temperature acclimation. KOG-identified DEGs from the (a-c) three contrasts between different acclimation temperatures (see Fig. 1d-f) were classified into the 25 superordinated KOG categories (right). Gene enrichment analyses (chi-square tests) identified KOG categories with deviating regulation, for which the category-specific ratio between upregulated (+) and downregulated (−) DEGs was significantly different from the contrast-specific ratio (^***P ≤ 0.001, black bars; ^**P ≤ 0.01, dark-gray bars; ^*P ≤ 0.05, light-gray bars). b The KOG categories J, W, E, G, and P exhibited highly significant deviations in regulation in the contrast 24 °C vs. 20 °C acclimation