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. 2021 May 28;12:668940. doi: 10.3389/fgene.2021.668940

FIGURE 1.

FIGURE 1

Expression and classification of microRNAs (miRNAs). (A) Expression of known and novel miRNAs. hpi, hours post-inoculation. (B) The species-specific miRNA families of nine plant species. ptc, Populus trichocarpa; mtr, Medicago truncatula; bra, Brassica rapa; sbi, Sorghum bicolor; osa, Oryza sativa; vvi, Vitis vinifera; ath, Arabidopsis thaliana; bdi, Brachypodium distachyon; gma, Glycine max. (C) The distribution of 110 conserved miRNA members in 23 miRNA families. (D) Nine clusters were obtained by K-means clustering with Euclidean distance as the distance metric.