Differential expression of asRNAs. A. Number of asRNAs whose expression is significantly changed during the conditions tested. B. Heatmap and hierarchical cluster analysis of expression of the most differentially expressed asRNAs in the conditions representing osmotic, oxidative and antibiotic stress compared to the untreated control (P < 0.01). Green color represents asRNAs with high expression, and brown color indicates asRNAs with low expression.