Venn diagram comparing trans-encoded sRNA candidates identified by 454 sequencing, Illumina/Solexa sequencing, and microarray hybridizations. In some cases a sRNA region detected by one method overlaps with multiple regions detected by one or both of the other methods. This is indictated by the colors of the numbers in the fields representing the overlaps. Numbers in brackets indicate discrepancies in the classification of sRNA regions identified by different methods. Small numbers indicate 454 deep sequencing candidates not classified as trans-encoded sRNA.