A comparative study of structural variant calling in WGS from Alzheimer's disease families

© 2024 Malamon et al..

Detecting structural variants (SVs) in whole-genome sequencing poses significant challenges. We present a protocol for variant calling, merging, genotyping, sensitivity analysis, and laboratory validation for generating a high-quality SV call set in whole-genome sequencing from the Alzheimer's Disease Sequencing Project comprising 578 individuals from 111 families. Employing two complementary pipelines, Scalpel and Parliament, for SV/indel calling, we assessed sensitivity through sample replicates (N = 9) with in silico variant spike-ins. We developed a novel metric, D-score, to evaluate caller specificity for deletions. The accuracy of deletions was evaluated by Sanger sequencing. We generated a high-quality call set of 152,301 deletions of diverse sizes. Sanger sequencing validated 114 of 146 detected deletions (78.1%). Scalpel excelled in accuracy for deletions ≤100 bp, whereas Parliament was optimal for deletions >900 bp. Overall, 83.0% and 72.5% of calls by Scalpel and Parliament were validated, respectively, including all 11 deletions called by both Parliament and Scalpel between 101 and 900 bp. Our flexible protocol successfully generated a high-quality deletion call set and a truth set of Sanger sequencing-validated deletions with precise breakpoints spanning 1-17,000 bp.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:7

Enthalten in:

Life science alliance - 7(2024), 5 vom: 28. März

Sprache:

Englisch

Beteiligte Personen:

Malamon, John S [VerfasserIn]
Farrell, John J [VerfasserIn]
Xia, Li Charlie [VerfasserIn]
Dombroski, Beth A [VerfasserIn]
Das, Rueben G [VerfasserIn]
Way, Jessica [VerfasserIn]
Kuzma, Amanda B [VerfasserIn]
Valladares, Otto [VerfasserIn]
Leung, Yuk Yee [VerfasserIn]
Scanlon, Allison J [VerfasserIn]
Lopez, Irving Antonio Barrera [VerfasserIn]
Brehony, Jack [VerfasserIn]
Worley, Kim C [VerfasserIn]
Zhang, Nancy R [VerfasserIn]
Wang, Li-San [VerfasserIn]
Farrer, Lindsay A [VerfasserIn]
Schellenberg, Gerard D [VerfasserIn]
Lee, Wan-Ping [VerfasserIn]
Vardarajan, Badri N [VerfasserIn]

Links:

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Themen:

Journal Article

Anmerkungen:

Date Completed 01.03.2024

Date Revised 02.03.2024

published: Electronic-Print

Citation Status MEDLINE

doi:

10.26508/lsa.202302181

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369080084