Figure 2

Number of paralogs (bona fide miRNAs as well as candidate miRNAs) identified in Populus in this study versus Arabidopsis and rice, from 21 conserved miRNA families. Note the general lack of correlation among sizes of miRNA families among the three species, with the exception of the smallest families. The Populus miRNAs families were determined after removal of redundant sequences and after selection for those with complete matches to the poplar genome sequence.