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. 2017 Jan 23;17:21. doi: 10.1186/s12870-017-0978-6

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Organization and sequence similarity of the intergenic spacer (IGS) of 45S rDNA of Atropa belladonna (Abel - clone Ab-IGS-1S; Genbank Acc. No KF492694), Solanum bulbocastanum (Sblb – [27]) and Nicotiana tomentosiformis (Ntom – [19]). Percents of similarity for different structural regions (SR I – SR VI) of IGS are given. TIS: transcription initiation site; TTS: putative transcription termination site. Localization of restriction endonucleases recognition sites (B: Bam HI, EI: Eco RI, EV: Eco RV, S: Sph I, Xb: Xba I, Xh: Xho I) used for IGS mapping of A. belladonna rDNA is shown