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Updated: Apr 3, 2026

Optimization and Comparative Analysis of Plant Organellar DNA Enrichment Methods Suitable for Next-generation Sequencing

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Published on: July 28, 2017

Comparing the performance of three ancient DNA extraction methods for high-throughput sequencing.

Cristina Gamba¹, Kristian Hanghøj¹, Charleen Gaunitz¹

¹Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350K, Copenhagen, Denmark.

Molecular Ecology Resources

|September 25, 2015

Summary

Silica column DNA extraction methods are superior for ancient remains, recovering more endogenous DNA. This cost-effective approach enhances ancient genome sequencing, even with degraded samples.

Keywords:

DNA extraction ancient DNA palaeogenomics ultrashort fragments

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Area of Science:

Paleogenomics
Molecular Anthropology
Ancient DNA (aDNA) research

Background:

Ancient DNA (aDNA) extracted from archaeological and paleontological samples is typically degraded and contaminated by microbial DNA.
This contamination hinders the effectiveness of high-throughput sequencing (HTS) for ancient genome reconstruction.
Optimizing DNA recovery during extraction and purification is crucial for advancing ancient genomics.

Purpose of the Study:

To compare the efficacy of three common DNA extraction methods for ancient bone samples.
To determine which method maximizes the recovery of endogenous DNA molecules.
To assess the impact of extraction methods on the cost-effectiveness of ancient genome sequencing.

Main Methods:

Applied three standard DNA extraction techniques to five ancient bone samples with a 30,000-year temporal range.
Samples originated from diverse geographical locations, including South America and Alaska.
Evaluated DNA yield, endogenous DNA proportion, and molecular diversity post-extraction.

Main Results:

DNA purification methods utilizing silica columns significantly outperformed in-solution methods.
Silica column methods increased both the total DNA yield and the relative abundance of endogenous DNA fragments.
These methods also enhanced the molecular diversity of the retrieved endogenous DNA.

Conclusions:

Silica column-based DNA extraction and purification are advantageous for processing degraded ancient DNA.
These methods offer a cost-effective strategy to improve ancient genome characterization via HTS.
Enhanced recovery of endogenous DNA molecules facilitates more robust paleogenomic studies.