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Fig. 5 | Genome Biology

Fig. 5

From: Conservation and divergence of small RNA pathways and microRNAs in land plants

Fig. 5

Sequence features of conserved miRNA candidates. a Relative proportions of miRNA candidates for each size category in all 25 species. The miRNA population sizes for each sample are shown in Table 1. b Relative abundance of miRNA candidates for each size category in the species in this study. Only species in which 21-nt miRNA candidates are not the most abundant are labeled. The population sizes for each sample are included in Additional file 1: Table S1. c Length distributions of miRNA candidates shown as percentages in each conserved miRNA family. The miRNAs of angiosperms and P. patens are from miRBase v21 (http://www.mirbase.org/). d, e The 5′ nucleotide composition of miRNA candidates shown as percentages of each of the four nucleotides. d The 5′ nucleotide composition of miRNA candidates in 25 lycophytes and ferns in this study and annotated miRNAs from five other species. All miRNA candidates or annotated miRNAs from each species were included in the analysis. e The 5′ nucleotide composition of conserved miRNA families from lycophytes and ferns in this study. miRNA candidates from all species from which the miRNA candidates were detected are included. Sequences of all predicted miRNA candidates in lycophytes and ferns are included in Additional file 4

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