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Updated: Jul 22, 2025

High-Throughput Analysis of Optical Mapping Data Using ElectroMap

High-Throughput Analysis of Optical Mapping Data Using ElectroMap

Published on: June 4, 2019

MOMS: A pipeline for scaffolding using multi-optical maps.

Jiang Xu¹, Baosheng Liao^1,2, Shuai Guo¹

¹Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.

Molecular Ecology Resources

|July 21, 2023

Summary

This summary is machine-generated.

A new multi-optical maps scaffolder (MOMS) pipeline enhances genome assembly by integrating diverse optical maps. This tool significantly improves contiguity and completeness, offering a robust solution for high-fidelity chromosome assembly.

Keywords:

directed node graph genome assembly minimum spanning tree optical mapping telomere-to-telomere assembly

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Last Updated: Jul 22, 2025

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Area of Science:

Genomics and Bioinformatics
Computational Biology

Background:

Optical mapping is a powerful technique for genome assembly and structural variation analysis.
Existing optical map scaffolding methods can be limited by enzyme compatibility and data integration.
Improving contiguity and completeness in genome assemblies remains a key challenge.

Purpose of the Study:

To introduce a novel multi-optical maps scaffolder (MOMS) pipeline.
To leverage complementary information from optical maps labeled by distinct enzymes for improved genome assembly.
To enhance data organization, scaffolding, gap-filling, and molecule reuse in optical mapping workflows.

Main Methods:

Development of the MOMS pipeline for optical map data processing.
Implementation of scaffolding by path traversal, gap-filling, and molecule reuse.
Testing with uncapped enzyme tolerance, allowing integration of maps from various enzymes.

Main Results:

MOMS demonstrated uncapped enzyme tolerance, enabling flexible integration of diverse optical maps.
For the human GM12878 cell line, MOMS significantly improved genome assembly contiguity and completeness.
Scaffold N50 increased up to 144-fold compared to initial assemblies, outperforming other scaffolders on human and O. sativa genomes.

Conclusions:

The MOMS pipeline offers a more effective and robust solution for optical map-based genome scaffolding.
This approach significantly enhances the contiguity and completeness of genome assemblies.
MOMS is expected to advance high-fidelity chromosome assembly and chromosome-level evolutionary analyses.