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. 2016 Jul 19;23:18. doi: 10.1186/s40709-016-0053-8

Fig. 1.

Fig. 1

The rDNA structure and its conserved sequences. a Schematic representation of the eukaryotic rDNA segment that contains 17–18S, 5.8S, and 25–28S rRNA. b The motif logo of the 5.8S primer homology in 2000 green plants records (NCBI taxid number: 33090) by BLASTN with a cut-off (e-value ≤ 1 × 10−10)