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STRyper: A macOS application for microsatellite genotyping and chromatogram management.

¹Laboratoire Écologie et Biologie des Interactions, Équipe Écologie Évolution Symbiose, Université de Poitiers, UMR CNRS 7267, Poitiers, France.

|February 20, 2025

Summary

STRyper is a new, free macOS application for analyzing microsatellite genotyping data. This tool simplifies chromatogram analysis for non-human species, offering powerful features for researchers.

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Area of Science:

Genetics
Bioinformatics
Software Development

Background:

Microsatellite markers are valuable for rapid, low-cost genotyping.
Existing microsatellite analysis software is often restricted to human genotyping or lacks free accessibility.
There is a need for a versatile, user-friendly tool for microsatellite data analysis across diverse species.

Purpose of the Study:

To develop a free, macOS-compatible application for microsatellite genotyping analysis.
To provide a tool that is not limited to human genotyping.
To offer advanced features for efficient and accurate analysis of microsatellite data.

Main Methods:

Developed STRyper, a macOS application with open-source code (General Public License).
Utilized macOS native libraries for a lightweight and responsive user experience.
Implemented a three-pane window for managing chromatograms, size standards, and marker panels.
Integrated powerful search functions (smart folders) and a drag-and-drop interface for manual corrections.

Main Results:

STRyper enables easy import and management of chromatograms (FSA, HID files).
The application facilitates the creation of size standards and microsatellite marker panels with bins.
Users can manually adjust DNA ladders and genotypes using an intuitive graphical interface.
A novel method is introduced to minimize variations in allele size estimation due to electrophoretic conditions.

Conclusions:

STRyper addresses the need for a free, non-human-focused microsatellite genotyping analysis tool.
The application offers a streamlined workflow for managing and analyzing microsatellite data.
STRyper's features enhance the efficiency and accuracy of genetic studies utilizing microsatellite markers.