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Benchmarking DNA isolation methods for marine metagenomics
Demkina, A.; Slonova, D.; Mamontov, V.; Konovalova, O.; Yurikova, D.; Rogozhin, V.; Belova, V.; Korostin, D.; Sutormin, D.; Severinov, K.; Isaev, A. (2023). Benchmarking DNA isolation methods for marine metagenomics. NPG Scientific Reports 13(1): 22138. https://dx.doi.org/10.1038/s41598-023-48804-z
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
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| Trefwoorden |
Magallana gigas (Thunberg, 1793) [WoRMS]
Marien/Kust |
| Auteurs | | Top |
- Demkina, A.
- Slonova, D.
- Mamontov, V.
- Konovalova, O.
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- Yurikova, D.
- Rogozhin, V.
- Belova, V.
- Korostin, D.
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- Sutormin, D.
- Severinov, K.
- Isaev, A.
|
| Abstract |
Metagenomics is a powerful tool to study marine microbial communities. However, obtaining high-quality environmental DNA suitable for downstream sequencing applications is a challenging task. The quality and quantity of isolated DNA heavily depend on the choice of purification procedure and the type of sample. Selection of an appropriate DNA isolation method for a new type of material often entails a lengthy trial and error process. Further, each DNA purification approach introduces biases and thus affects the composition of the studied community. To account for these problems and biases, we systematically investigated efficiency of DNA purification from three types of samples (water, sea sediment, and digestive tract of a model invertebrate Magallana gigas) with eight commercially available DNA isolation kits. For each kit-sample combination we measured the quantity of purified DNA, extent of DNA fragmentation, the presence of PCR-inhibiting contaminants, admixture of eukaryotic DNA, alpha-diversity, and reproducibility of the resulting community composition based on 16S rRNA amplicons sequencing. Additionally, we determined a “kitome”, e.g., a set of contaminating taxa inherent for each type of purification kit used. The resulting matrix of evaluated parameters allows one to select the best DNA purification procedure for a given type of sample. |
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