Fig. 1: Distributions of nitrogen assimilation-related genes mapped onto the core phylogenetic tree of 398 Prochlorococcus and Synechococcus genomes. | Communications Earth & Environment

Fig. 1: Distributions of nitrogen assimilation-related genes mapped onto the core phylogenetic tree of 398 Prochlorococcus and Synechococcus genomes.

From: Temperature-driven nitrogen mixotrophy shapes marine cyanobacteria Prochlorococcus and Synechococcus latitudinal distribution pattern

Fig. 1

Genes encoding inorganic N transporters, amino acid transporters, and small organic molecules transporters are depicted (A); A bubble matrix summarizes the presence of nitrogen assimilation-related genes across Prochlorococcus and Synechococcus members, expressed as percentages of total genomes (B). The genome-genome phylogenetic tree is constructed using GTDB-tk, with selected members of Synechococcus and Prochlorococcus ecotypes highlighted as pie slices. The solid gray circles represent isolates and empty circles for single-cell genomes. Bars adjacent to the phylogenetic branches indicate gene presence (colored segments) or absence (gaps). The bubble matrix shows nitrogen transporter gene prevalence of Synechococcus and Prochlorococcus: bubble size corresponds to the percentage of genomes containing these genes, while color indicates relative abundance (red: ~5%, yellow: ~50%, dark blue: ~100%). This dual representation allows for comparative insights into nitrogen assimilation-related gene distributions between the two genera.

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