Genome-Wide Analysis Reveals Genetic Potential for Aromatic Compounds Biodegradation of Sphingopyxis

Figure 2

Comparison of orthologous groups in 19 Sphingopyxis genomes. (a) Venn diagram showing the numbers of shared genes and flexible genes in each Sphingopyxis strains. (b) Percentages of shared, distributed, and unique genes in each of the19 Sphingopyxis genomes. (c) Functional assignment of core-genome shared by 19 Sphingopyxis strains. (d) Functional profiling of the 19 Sphingopyxis genomes. Heatmap indicated the normalized relative abundance of COG categories of protein-coding genes in each Sphingopyxis genomes. Strains and COG categories were clustered using the Euclidean distance. The color scale represented the relative abundance of each COG category, normalized by sample mean. Abbreviations: C: energy production and conversion; D: cell cycle control; E: amino acid transport and metabolism; F: nucleotide transport and metabolism; G: carbohydrate transport and metabolism; H: coenzyme transport and metabolism; I: lipid transport and metabolism; J: translation, ribosomal structure, and biogenesis; K: transcription; L: replication, recombination, and repair; M: cell wall/membrane/envelope biogenesis; N: cell motility; O: posttranslational modification, protein turnover; P: inorganic ion transport and metabolism; Q: secondary metabolites biosynthesis and transport; S: function unknown; T: signal transduction mechanisms; U: intracellular trafficking, secretion, and vesicular transport; V: defense mechanisms.

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