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. 2023 Jun 15;55(7):1221–1231. doi: 10.1038/s41588-023-01419-6

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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 images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — a, Sequence structure of a typical 5S and 45S rDNAs repeat unit. IGS, intergenic spacer region; ITS, internal transcribed spacer region. b, Graphical representation of the five most abundant genotypes of 5S rDNAs (left) and 45S rDNAs (right). For the 45S rDNA, only the IGS region was shown. Genomic variations used for genotype analysis were indicated. c,d, Graphical representation of the genome structure of 5S rDNA array (c) and 45S rDNA arrays (d).