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. 2021 Apr 29;22(9):4742. doi: 10.3390/ijms22094742

Figure 4.

Figure 4

Circos plots of sequence conserved and positionally conserved lncRNAs that may be associated with rice domestication. (a) Distribution of sequence-conserved lncRNAs between O. rufipogon, japonica and indica. The 12 chromosomes in each set are shown in the outermost circle. Red lines in the second circle indicate the density of lncRNAs detected in this study. Heatmaps in the third and fourth circles represent the expression level of sequence-conserved lncRNAs in panicles and seedlings, respectively. The internal links in gray connect lncRNAs that are sequence-conserved between O. rufipogon, japonica and indica. (b) Two examples showed multiple lncRNAs in wild rice are sequence-conserved with rare lncRNAs in cultivated rice. Purple lines indicate 41 lncRNAs in O. rufipogon are homologous with 1 and 3 lncRNAs in japonica and indica, respectively. Green lines indicate 21 lncRNAs in O. rufipogon are homologous with 1 and 2 lncRNAs in japonica and indica, respectively. (c) Circos representation of positionally conserved lncRNAs between O. rufipogon, japonica and, indica. Links depicted conserved synteny of lncRNAs between at least two genomes, with blue lines highlighting the eight positionally conserved lncRNA-matches between O. rufipogon, japonica, and indica.