Long-Read Sequencing Emerging in Medical Genetics

Area of Science:

• Medical Genetics
• Genomic Medicine
• Bioinformatics

Background:

• Next-generation sequencing (NGS) has transformed medical genetics but faces limitations due to short read lengths.
• Short reads hinder the accurate identification of structural variants, repetitive regions, and homologous sequences.
• These NGS limitations contribute to a diagnostic gap for patients with genetic disorders.

Purpose of the Study:

• To explore the potential of emerging long-read sequencing (LRS) technologies in medical genetics.
• To evaluate LRS's ability to overcome NGS limitations in characterizing complex genomic variations.
• To discuss LRS's role in advancing the diagnosis of genetic disorders through whole genome sequencing.

Main Methods:

• Review of current LRS-based research in human genetic disorders.
• Analysis of LRS capabilities in sequencing challenging genomic regions and structural variants.
• Discussion on the future prospects of LRS for routine whole genome sequencing and de novo assembly.

Main Results:

• LRS technologies show promise in improving the characterization of genetic variation compared to NGS.
• LRS has been applied to investigate genetic disorders with known or suspected disease loci.
• The potential for routine whole genome sequencing using LRS is being explored.

Conclusions:

• LRS technologies offer significant advantages over traditional NGS for complex genomic analyses.
• LRS has the potential to enhance diagnostic capabilities for genetic disorders.
• The widespread adoption of LRS could lead to major advancements in personalized genomic medicine.