Fig. 4: Relative abundance of metabolic genes identified in samples from unmarked surfaces and altered surfaces in the Apse and the Passage. | npj Biofilms and Microbiomes

Fig. 4: Relative abundance of metabolic genes identified in samples from unmarked surfaces and altered surfaces in the Apse and the Passage.

From: Microbial diversity and secondary metabolism potential in relation to dark alterations in Paleolithic Lascaux Cave

Fig. 4

The relative abundance of selected genes is represented using a gradient (0 to 40,000 sequences), with purple shades indicating higher abundances. The sampling year is indicated with a pink vertical line for 2020 and a black vertical line for 2021. The significance of Wilcoxon tests for comparison of unmarked surfaces and dark zones is represented by colors placed between unmarked surfaces data and dark-zones data, using a gradient (P value of 1 to 0.0001), with green shades indicating significant P values. NA (Non-Applicable): relative abundance of selected genes was 0. Metabolic functions associated with selected genes are detailed in Supplementary Table 5.

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