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. 2018 Dec 5;13(12):e0207531. doi: 10.1371/journal.pone.0207531

Fig 2. Primate rDNA repeat units.

Fig 2

A) Phylogenetic tree showing the relationships between primate species selected for rDNA phylogenetic footprinting [adapted from 91]. B) Human and primate rDNA unit structures are shown. The rRNA coding region (black line), including the 18S, 5.8S and 28S rRNA subunits (black boxes), and the IGS (grey line) are indicated along with the positions of repeat elements and a cdc27 pseudogene. Elements above the line are on the forward strand; those below on the reverse strand. The rRNA coding region/IGS coordinates and rDNA unit lengths are indicated.