Fig. 5From: Metabolomics analysis reveals the metabolite profiles of Rheum tanguticum grown under different altitudinal gradientsExpression profiles of R. tanguticum metabolites at different altitudes. A: 4-year-old plants; B: 5-year-old plants. Red and green dots denote significantly upregulated and downregulated metabolites, respectively, while gray dots indicate nonsignificantly expressed metabolitesBack to article page