Journal
GENOME MEDICINE
Volume 15, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s13073-023-01194-3
Keywords
Long-read sequencing; Genetic variation; Medical genetics; Structural variation; Mendelian disorders
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Advances in clinical genetic testing, especially long-read sequencing (LRS), have greatly improved the diagnosis rate for rare and previously unsolved genetic disorders. LRS technology has been used to evaluate complex genetic variations, identify missing variants, and has the potential to revolutionize clinical practice in the future.
Advances in clinical genetic testing, including the introduction of exome sequencing, have uncovered the molecular etiology for many rare and previously unsolved genetic disorders, yet more than half of individuals with a suspected genetic disorder remain unsolved after complete clinical evaluation. A precise genetic diagnosis may guide clinical treatment plans, allow families to make informed care decisions, and permit individuals to participate in N-of-1 trials; thus, there is high interest in developing new tools and techniques to increase the solve rate. Long-read sequencing (LRS) is a promising technology for both increasing the solve rate and decreasing the amount of time required to make a precise genetic diagnosis. Here, we summarize current LRS technologies, give examples of how they have been used to evaluate complex genetic variation and identify missing variants, and discuss future clinical applications of LRS. As costs continue to decrease, LRS will find additional utility in the clinical space fundamentally changing how pathological variants are discovered and eventually acting as a single-data source that can be interrogated multiple times for clinical service.
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