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REPrise: de novo interspersed repeat detection using inexact seeding
Atsushi Takeda1,2, Daisuke Nonaka3, Yuta Imazu4
1Department of Electrical Engineering and Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, 1698555, Japan.
Mobile DNA
|April 4, 2025
Summary
REPrise is a new software for detecting interspersed repeats in genomes. It improves accuracy, especially for mutated sequences, enhancing genome analysis and discovery of novel repeat families.
Area of Science:
- Genomics
- Bioinformatics
Background:
- Interspersed repeats are crucial components of eukaryotic genomes.
- Accurate repeat annotation is vital for genome analysis.
- Database-free de novo repeat detection is needed for genomes lacking curated databases.
Purpose of the Study:
- To develop a novel de novo interspersed repeat detection software.
- To improve the performance of existing repeat detection tools.
Main Methods:
- Developed REPrise, a de novo interspersed repeat detection software.
- Utilized a seed-and-extension method with unique techniques: inexact seeding, affine gap scoring, and loose masking.
Main Results:
- REPrise demonstrated higher sensitivity than RepeatScout on rice and simulation datasets, particularly for mutated repeat sequences.
- REPrise identified novel repeat sequence families in the T2T-CHM13 human genome dataset.
Conclusions:
- REPrise achieves high-sensitivity detection of interspersed repeats, even in large genomes.
- The software advances repeat annotation for various genomic studies and deepens understanding of genomic structures.
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