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FlexiDot: highly customizable, ambiguity-aware dotplots for visual sequence analyses.

Kathrin M Seibt1, Thomas Schmidt1, Tony Heitkam1

  • 1Technische Universität Dresden, School of Science, Faculty of Biology, Institute of Botany, Dresden, Germany.

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|May 16, 2018
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Summary
This summary is machine-generated.

FlexiDot is a new software suite that enhances dotplot visualizations for comparing DNA sequences, especially those with errors. It improves motif identification and allows for rapid screening of large sequence sets in routine analyses.

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Area of Science:

  • Bioinformatics
  • Computational Biology
  • Genomics

Background:

  • Dotplot visualization is crucial for sequence comparison.
  • Existing tools may struggle with ambiguous or error-prone sequences.
  • Efficient analysis of large sequence datasets is a persistent challenge.

Purpose of the Study:

  • To introduce FlexiDot, a versatile dotplot software suite.
  • To enhance the utility of dotplots for comparing consensus and error-prone sequences.
  • To facilitate motif identification and large-scale sequence dataset screening.

Main Methods:

  • FlexiDot implements routines for strict and relaxed handling of sequence ambiguities and substitutions.
  • Shading modules integrate sequence annotations and similarity information.
  • Collage-like outputs enable simultaneous visual screening of multiple sequence alignments.

Main Results:

  • FlexiDot generates high-quality self, pairwise, and all-against-all dotplot visualizations.
  • The software improves dotplot suitability for error-prone and consensus sequence comparison.
  • Shading and collage outputs aid in interpretation and motif discovery.

Conclusions:

  • FlexiDot expands the applicability of dotplot analysis for routine genomic tasks.
  • The software supports efficient visual screening of large sequence sets.
  • FlexiDot offers improved interpretation and motif identification capabilities for sequence comparisons.