highly significantp value <2.2E16
Interestingly, we have observed a much higher number of negatively correlated mRNAs than positively correlated ones with the medians of 430 and 1,022 for the positively and negatively co-expressed transcripts respectively, and the trend towards negative correlation was highly significant ( p value <2.2E16, Wilcoxon signed rank test) (Fig. 2 e, Additional file 1 : Supplemental Table S4).