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. 2022 Nov 2;22:510. doi: 10.1186/s12870-022-03891-4

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© The Author(s) 2022

Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/. 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 in a credit line to the data.

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Fig. 5 — The expression pattern of GRF genes during various developmental stages and different tissues in S. spontaneum and S. officinarum based on log2-transformed FPKM values. (A) Heatmap based on gene expression in different tissues at various stages. (B) Heatmap based on gene expression across leaf gradients. C&D) Heatmap based on gene expression during the diurnal cycles. The heatmap was plotted using the TBtools software (v1.098). The scale bar represents the log2 normalized expression values after normalizing expression to genes using the average linkage algorithm. The red color represents higher expression, while the blue color indicates lower expression