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Related Experiment Videos

Adplot: detection and visualization of repetitive patterns in complete genomes.

Akito Taneda1

  • 1Department of Electronic and Information System Engineering, Faculty of Science and Technology, Hirosaki University, Hirosaki 036-8561, Japan. taneda@si.hirosaki-u.ac.jp

Bioinformatics (Oxford, England)
|February 7, 2004
PubMed
Summary

Auto Dot PLOT (Adplot) efficiently visualizes approximate DNA repeats, aiding repetitive sequence research. This tool helps analyze complex repeat structures and infer their evolutionary history.

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Area of Science:

  • Genomics
  • Bioinformatics

Background:

  • Repetitive DNA sequences are prevalent in genomes.
  • Identifying significant repeats is crucial for genomic research.
  • Analyzing approximate repeats remains a challenge.

Purpose of the Study:

  • To develop an efficient computational tool for visualizing and analyzing approximate repetitive DNA sequences.
  • To demonstrate the utility of the tool in identifying complex repeat structures.

Main Methods:

  • Development of Auto Dot PLOT (Adplot), a visualization program.
  • Application of window filtering based on iid Bernoulli trials.
  • Testing on yeast chromosomes and human T cell receptor locus.

Main Results:

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  • Adplot successfully visualized typical repeats in yeast chromosomes and a long tandem repeat in the human T cell receptor locus.
  • Complex direct and palindromic repeat structures in yeast chromosome 10 were visualized.
  • The program demonstrated high efficiency, with analysis times under 10 seconds per yeast chromosome.

    • Conclusions:

    • Adplot effectively visualizes approximate local repeat structures.
    • The tool provides diagnostic power for inferring the duplicational history of repeats.
    • Adplot is available via email request.