Fig. 2

a Illustration diagram of the four classes of assembled transcripts. PM partially overlap to mRNA, represented by nc-01, nc-02; IGR intergenic region, represented by nc-03; IM included in mRNA, represented by nc-04; AM antisense to mRNA, represented by nc-05, nc-06. b Pie chart clarifying the sRNA transcripts. The percentages of all the deep sequencing transcripts mapped to the previously annotated or non-annotated regions of the Anabaena sp. PCC 7120 genome