Figure 2 | Scientific Reports

Figure 2

From: An insight into the botanical origins of propolis from permanent preservation and reforestation areas of southern Brazil

Figure 2

Hierarchical clustering heatmap of chromatograms obtained by SHS-GCMS from brown propolis and conifer resins from southern Brazil. Each colored cell on the heatmap indicates the correlation coefficient, and the scale code is shown on the top right corner (red and blue colors mean positive and negative correlations, respectively, at a level of confidence of 95%). General Carneiro, ‘Vila Zulmira sede’ and ‘Vila Zulmira serra’ refer to the origin of the propolis samples and Araucaria angustifolia, Pinus taeda and Pinus elliotti refer to the plant from where the resins were collected. Codes refer to volatiles shown in Supplementary Tables S1, S2 and S3. Figure was generated by the MetaboAnalyst software, v. 5.0 (https://www.metaboanalyst.ca/).

Back to article page