Fig. 5: Evolutionary mechanism of plume microbial populations during migration.
From: Sulfur cycling connects microbiomes and biogeochemistry in deep-sea hydrothermal plumes
a Schematic diagram showing the changing trend of microdiversity parameters during migration. Individual solid dots with various colors represent microbial populations. Two scenarios were depicted in this panel: unrepresentative strains and strains that have detectable read mapping results in both environments. b Two representative charts showing FST distribution in MAGs that contain high FST genes. In each chart, the x-axis represents gene numbers (only genes with detectable FST; negative values were removed). Dot sizes were proportional to SNV numbers in individual genes, and FST genome-wide mean was depicted in each chart with dashed lines. Red-colored dots represent high FST genes that also passed the requirements of FST, nucleotide diversity, N/S SNV ratios, and coverages (see methods). The nucleotide diversity and N/S SNV ratio distribution for high FST genes and genome-wide mean of all genes in different environments were depicted in the chart on the right side. Details of high FST genes and related parameters in individual genomes (all hits, also including these two representative genomes) were listed in Supplementary Data 12. c Two representative charts showing FST distribution in MAGs that contain sulfur metabolizing genes with signals of being fixed. In each chart, the x-axis represents gene numbers (only genes with detectable FST; negative values were removed). Dot sizes were proportional to SNV numbers in individual genes, and FST genome-wide mean was depicted in each chart with dashed lines. Red-colored dots represent sulfur metabolizing genes that passed the requirements of FST, nucleotide diversity, N/S SNV ratios, and coverages (see methods). The nucleotide diversity and N/S SNV ratio distribution for sulfur metabolizing genes in different environments were depicted in the chart on the right side. Details of sulfur metabolizing genes with signals of being fixed and related parameters in individual genomes (all hits, also including these two representative genomes) were listed in Supplementary Data 13. d Diagram showing the underlying evolutionary processes during migration. Circles represent microbial populations. Dash line arrows indicate the direction of the next evolutionary step.
