Step-by-Step GeneDoc Tutorial: From Import to Publication-Ready Figures
GeneDoc is a lightweight tool for viewing, editing, and annotating multiple sequence alignments. This tutorial walks through a typical workflow: importing alignments, adjusting display and shading, annotating features, exporting high-quality images, and tips for producing publication-ready figures. Assumed: you have a multiple sequence alignment file (FASTA, CLUSTAL, or similar) produced by an aligner (e.g., Clustal Omega, MUSCLE).
1. Prepare your alignment
- Generate alignment: Run your preferred aligner (Clustal Omega, MUSCLE) on the raw sequences and save the output in a compatible format (FASTA aligned, CLUSTAL .aln).
- Check sequence names: Keep names concise (≤30 characters) to avoid crowded labels in figures.
- Clean up gaps: If necessary, edit the alignment in the aligner or a sequence editor to remove obvious misalignments or long terminal gaps.
2. Import the alignment into GeneDoc
- Open GeneDoc.
- Choose File → Open and select your alignment file. GeneDoc recognizes CLUSTAL and other common alignment formats; if your format isn’t recognized, save/export from your aligner as CLUSTAL or aligned FASTA.
- Confirm sequence order and labeling; use Edit → Sequence Order if you need reordering.
3. Configure the view
- Font and spacing: From the Display menu, set a monospaced font and appropriate size so residues are clearly visible.
- Wrap length: Set columns per line (e.g., 60 or 80) to balance readability and figure width.
- Consensus display: Enable consensus lines if you want to show conservation summaries beneath sequences.
4. Apply shading and coloring
- Open the Shading/Color dialog (Format → Shading).
- Choose a shading scheme: Use identity shading (highlights residues identical to a reference) or property-based coloring (hydrophobic, polar, charged).
- Adjust thresholds: Set identity/conservation thresholds to control how strict shading is (e.g., 70% identity).
- Preview and tweak: Inspect shaded columns and adjust color contrast so colors reproduce well in print and grayscale. For publication, prefer high-contrast palettes and avoid red/green-only distinctions.
5. Annotate features and labels
- Add sequence annotations: Use the Annotation or Comment tools to mark domains, motifs, active sites, or post-translational modifications. Place short labels above or below the alignment.
- Numbering scheme: Confirm sequence numbering matches the biological reference (choose alignment numbering or original sequence coordinates).
- Arrows/boxes: Draw boxes or lines to emphasize conserved regions or structural features using the drawing tools.
6. Create inset or zoomed regions
- For long alignments, choose a conserved segment to display as an inset.
- Use the Select tool to crop the region and copy it into a new GeneDoc window or export separately for a detailed panel.
7. Final layout for figures
- Remove unnecessary elements: Turn off gridlines or background that may clutter the figure.
- Add scale bars and labels: Include sequence position scales and descriptive figure captions outside GeneDoc in your figure editor.
- Assemble multipanel figures: Export multiple panels (full alignment, zoomed view, annotation schematic) and combine in a graphics program (Inkscape, Illustrator).
8. Export high-quality images
- Use File → Export to save as BMP or EMF if supported; EMF preserves vector-like quality on Windows. If you need raster images, export at a high resolution (e.g., 300–600 dpi).
- If GeneDoc’s export options are limited, take a full-screen, high-resolution screenshot and crop in an image editor, or copy/paste into Illustrator/PowerPoint and save as PDF or EPS.
- For grayscale journals, convert a color export to grayscale and verify contrast of shaded regions.
9. Check journal requirements
- Confirm figure size, resolution (usually ≥300 dpi), and file format (TIFF, EPS, PDF) required by your target journal.
- Ensure fonts and labels remain legible at final print size; increase font sizes in GeneDoc before export if necessary.
10. Final polishing tips
- Legend: Provide a clear legend explaining shading/colour rules and numbering.
- Accessibility: Avoid color combinations that are inaccessible to colorblind readers; use patterns or labels in addition to color when needed.
- File backups: Save a GeneDoc project file and export intermediate files so you can revise figures quickly.
Conclusion Follow this workflow to turn raw alignments into clear, annotated, publication-ready figures using GeneDoc: prepare and import the alignment, optimize display and shading, annotate key features, export at high resolution, and assemble final panels according to journal specifications.
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