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. 2021 Aug 23;28(5):dsab014. doi: 10.1093/dnares/dsab014

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© The Author(s) 2021. Published by Oxford University Press on behalf of Kazusa DNA Research Institute.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Comparison of DNA methylation levels in different classes of TEs during the initiation of nucellar embryogenesis. (A) Categories and numbers of TEs identified in Clementine mandarin (C. clementina, black columns) and pummelo (C. grandis, grey columns) genomes. Average distribution of DNA methylation levels in Class I (B) and Class II (C) TEs. In all cases, the TE flanking regions are of the same length as the TE bodies. +, Body, −, the upstream, body and downstream regions of TEs; methylation levels were calculated in 100 proportionally sized bins. Poly/Mono-NC, poly/mono-embryonic nucellar tissue.