Figure 2From: Effects of elevated seawater p CO2 on gene expression patterns in the gills of the green crab, Carcinus maenasDifferentiation of the sum of all significantly regulated transcripts for each gill and day of Carcinus maenas upon short-term exposure to hypercapnia. For each of the experimental blocks of the short-term hypercapnia experiment (gill7day3, gill7day7, gill9day3 and gill9day7), up- and down- regulated transcripts were counted and represented as bars. Additionally, a matrix was generated for all significantly regulated transcripts (sign test) for each block with 1 = significantly up-regulated, 0 = not significantly regulated, -1 = significantly down-regulated. Statistical comparison of the four experimental blocks was done applying Wilcoxon's matched pairs test on the matrices. No significant difference was found in gill 7 comparing the two sampling points, while gill 9 on day 3 differed significantly compared to gill 9 on day 7 (p < 0.05). Additionally, gill 9 in general differed significantly in comparison to gill 7 on both days (p < 0.05). Different letters a, b, c denote these significant difference.Back to article page