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. 2019 Dec 11;19:551. doi: 10.1186/s12870-019-2134-y

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© The Author(s). 2019

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. 5 — Gene expression levels in volcano plots (a, b and c) and different gene expression statistics (d). The X-axis indicates the logarithm of the difference between the two subgroups (a, b and c), and the Y-axis indicates the negative log10 value of the FDR for the two subgroups (a, b and c). The red dots represent upregulated expression, the green dots represent downregulated expression and the black dots represent no difference (a, b and c). CK, without adding wheat straw; T1, addition of 1% wheat straw; T2, addition of 2% wheat straw