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. 2020 Sep 10;3:500. doi: 10.1038/s42003-020-01235-2

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© The Author(s) 2020

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. 2 — a Analysis of network topology for different soft‐thresholding powers. The graph displays the influence of soft‐thresholding power (x‐axis) on the scale‐free fit index (y‐axis). b Cluster dendrogram of module eigengenes. Branches of the dendrogram group together eigengenes that are positively correlated. The red line is the merging threshold, and groups of eigengenes below the threshold represent modules whose expression profiles should be merged due to their similarity. c Hierarchical cluster dendrogram showing co-expressed modules identified by weighted gene co-expression network analysis for the pineapple RNA-seq data. Each leaf on the tree represents one gene. The major tree branches constitute 20 merged modules (based on a threshold of 0.25), labeled with different colors. d Module-tissue association analysis. Each row corresponds to a module, with the number of genes in the module indicated on the left. Each column corresponds to a specific tissue. The correlation coefficient between a given module and tissue type is indicated by the color of the cell at the row-column intersection. Red and blue indicate positive and negative correlation, respectively.