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Overview
The Overview page provides a visual summary of the SAR11 Genome Atlas and serves as the main entry point to its genome-, orthogroup-, network-, literature-, and expression-level tools.
The summary cards at the top of the page report the current size and annotation coverage of the atlas:
- Genomes: number of SAR11 genomes included in the collection.
- Subclades: number of represented SAR11 subclades.
- Proteins: total number of predicted protein sequences.
- With at least one annotation: percentage of proteins assigned at least one COG, KO, or Pfam annotation.
- Orthogroups: number of orthologous groups defined across the collection.
Select a summary card to open the corresponding Genome Information or All OG List page.
The Explore cards provide direct access to the major tools in the atlas:
- Genome Information: explore genome sampling locations, phylogenetic relationships, and searchable genome metadata.
- OG Information Viewer: inspect orthogroup members, functional annotations, expression patterns, and related information.
- CORGIAS Network: explore correlation-based relationships among SAR11 orthogroups.
- SAR11 Paper Network: browse curated SAR11 publications and literature relationships.
- Synteny Network: compare conserved neighboring-gene patterns and genome context across SAR11 genomes.
- Metatranscriptome Viewer: examine orthogroup expression across Tara Oceans metatranscriptomic samples.
Hover over or focus a card to display its description. Select a card to open that tool in the current browser tab.
Use the controls under Explore the collection to filter the summary statistics and visualizations.
- Genome type: show all genomes or select MAGs, SAGs, or cultured isolates.
- Subclade: restrict the collection to a selected SAR11 subclade.
- Reset: return all filters to their default values.
The selected genome type and subclade are applied simultaneously to all panels. The protein-length panel also has its own annotation-group filter.
The donut chart summarizes the number and proportion of genomes obtained as:
- MAG: metagenome-assembled genome.
- SAG: single-amplified genome.
- Isolate: genome from a cultured strain.
The colors match those used on the SAR11 Genome Map: red for MAGs, blue for SAGs, and yellow for cultured isolates. Hover over a segment to view its genome count and percentage.
The annotation overlap panel is an UpSet plot showing how protein annotations overlap among COG, KO, and Pfam.
The bars show the number of proteins in each annotation combination. The connected dots below each bar indicate which annotation sources are included. Proteins without any of the three annotations are shown as No annotation.
This view can be used to distinguish proteins supported by multiple annotation systems from proteins detected by only one system.
The scatter plot compares genome size and GC content across the selected genomes.
- The horizontal axis shows genome size in megabase pairs.
- The vertical axis shows GC content as a percentage.
- Point color indicates genome type.
- Point size reflects the number of predicted proteins.
Hover over a point to view the genome name, subclade, genome type, genome size, GC content, protein count, completeness, and contamination.
The protein-length histogram summarizes predicted protein sizes in 25-amino-acid intervals. Proteins of 2,000 amino acids or longer are combined into the final bin.
Use the Annotation group menu to display all proteins or a selected combination of COG, KO, and Pfam annotations. Hover over a bar to view the corresponding length interval and protein count.
Use the Dark mode or Light mode button near the top of the page to change the display theme. The selected theme is retained while moving between atlas pages.