Fig. 2From: Transcriptome analysis reveals insight into molecular hydrogen-induced cadmium tolerance in alfalfa: the prominent role of sulfur and (homo)glutathione metabolismClusters of unigenes in the M. sativa transcriptome. a Gene Ontology (GO) terms. The 10 most significantly enriched terms in the level 4 Gene Ontology hierarchy. Information on the percentage and number of involved proteins in a term are shown on the left and right y-axes. b Clusters of enriched Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways that are arranged into the metabolism subcategories, and the number of involved proteins in a specific pathway and corresponding P value are shown on the right side of columnBack to article page