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A High-Throughput Ancient DNA Extraction Method for Large-Scale Sample Screening
Stockholm University, Faculty of Science, Department of Zoology. Centre for Palaeogenetics, Stockholm, Sweden.
Stockholm University, Faculty of Science, Department of Zoology. Centre for Palaeogenetics, Stockholm, Sweden.ORCID iD: 0000-0002-4717-1988
Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies. Centre for Palaeogenetics, Stockholm, Sweden.
Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies. Centre for Palaeogenetics, Stockholm, Sweden.
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Number of Authors: 122025 (English)In: Molecular Ecology Resources, ISSN 1755-098X, E-ISSN 1755-0998Article in journal (Refereed) Epub ahead of print
Abstract [en]

Large-scale DNA screening of palaeontological and archaeological collections remains a limiting and costly factor for ancient DNA studies. Several DNA extraction protocols are routinely used in ancient DNA laboratories and have even been automated on robotic platforms. Robots offer a solution for high-throughput screening but the costs, as well as necessity for trained technicians and engineers, can be prohibitive for some laboratories. Here, we present a high-throughput alternative to robot-based ancient DNA extraction using a 96-column plate. When compared to routine single MinElute columns, we retrieved highly similar endogenous DNA contents, an important metric in ancient DNA screening. Mitogenomes with a coverage depth greater than 0.1× could be generated and allowed for taxonomic assignment. However, average fragment lengths, DNA damage and library complexities significantly differed between methods but these differences became nonsignificant after modification of our library purification protocol. Our high-throughput extraction method allows generation of 96 extracts within approximately 4 hours of laboratory work while bringing the cost down by ~39% compared to using single columns. Additionally, we formally demonstrate that the addition of Tween-20 during the elution step results in higher complexity libraries, thereby enabling higher genome coverage for the same sequencing effort.

Place, publisher, year, edition, pages
2025.
Keywords [en]
96-column plate, ancient DNA, DNA extraction, high-throughput
National Category
Archaeology Genetics and Genomics
Identifiers
URN: urn:nbn:se:su:diva-240154DOI: 10.1111/1755-0998.14077ISI: 001415410200001PubMedID: 39912442Scopus ID: 2-s2.0-105001864724OAI: oai:DiVA.org:su-240154DiVA, id: diva2:1942148
Available from: 2025-03-04 Created: 2025-03-04 Last updated: 2025-05-06

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Lord, EdanaOteo Garcia, GonzaloHeintzman, PeterDalén, Love

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Lord, EdanaOteo Garcia, GonzaloHeintzman, PeterDalén, Love
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Department of ZoologyDepartment of Archaeology and Classical StudiesDepartment of Geological SciencesThe Bolin Centre for Climate Research (together with KTH & SMHI)Department of Ecology, Environment and Plant SciencesAnimal Ecology
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Molecular Ecology Resources
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