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. 2016 Sep 7;11(9):e0161476. doi: 10.1371/journal.pone.0161476

Fig 6.

Fig 6

A. The numbers of introns conserved between the orthologs of Paramecium, Tetrahymena, Ichthyophthirius, Oxytricha, and Stylonychia. B. Scatter-plots of orthologous introns length of Tetrahymena, Ichthyophthirius, Oxytricha, and Stylonychia. The intron length range up to 150 bp is shown. Red and blue lines separate classes of the intron lengths. C. L distributions of the conserved and young introns in orthologous genes for Tetrahymena, Ichthyophthirius, Oxytricha, and Stylonychia (in the log2 scale). Conserved introns are significantly shorter than young introns in Ichthyophthirius, Oxytricha, and Stylonychia (by the Wilcoxon rank sum test, p-value < 2.2×10-16, < 10-4, and < 2.2×10-16, respectively).