Importance of eDNA taphonomy and sediment provenance for robust ecological inference: Insights from interfacial geochemistry
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Importance of eDNA taphonomy and sediment provenance for robust ecological inference : Insights from interfacial geochemistry. / Sand, K. K.; Jelavić, S.; Kjær, K. H.; Prohaska, A.
In: Environmental DNA, Vol. 6, No. 2, e519, 2024.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Importance of eDNA taphonomy and sediment provenance for robust ecological inference
T2 - Insights from interfacial geochemistry
AU - Sand, K. K.
AU - Jelavić, S.
AU - Kjær, K. H.
AU - Prohaska, A.
N1 - Funding Information: This work was supported by a research grant (00025352) from VILLUM FONDEN. SJ was partly funded by the French Government through the MOPGA Postdoctoral Programme (ref. 3-5402234721) and a postdoctoral fellowship from Labex OSUG@2020 (investissements d'avenir, ANR10-LABX56). Funding Information: This work was supported by a research grant (00025352) from VILLUM FONDEN. SJ was partly funded by the French Government through the MOPGA Postdoctoral Programme (ref. 3‐5402234721) and a postdoctoral fellowship from Labex OSUG@2020 (investissements d'avenir, ANR10‐LABX56). Publisher Copyright: © 2024 The Authors. Environmental DNA published by John Wiley & Sons Ltd.
PY - 2024
Y1 - 2024
N2 - Retrieval of modern and ancient environmental DNA (eDNA) from sediments has revolutionized our ability to study past and present ecosystems. Little emphasis has been placed, however, on the fundamentals of the DNA–sediment associations in environmental settings. Consequently, our understanding of mineralogic controls and geochemical processes that take place on the DNA–sediment interface, and its implications for eDNA taphonomy and provenance, remain extremely limited. Here, we apply interfacial geochemical principles to elucidate how depositional processes and the stability of DNA–sediment associations in different environments can influence our interpretation and identify possible interpretational biases arising from neglecting mineral and geochemical controls on eDNA taphonomy. We use atomic force microscopy to show how interfacial geochemical interactions drive DNA adsorption behavior and we outline how to increase the scope and resolution of ecological interpretations from eDNA by combining mineralogic composition information with experimental adsorption data. We bring the concepts together and propose how to integrate sediment provenance as well as mineralogic and geochemical principles in eDNA taphonomy analysis for improved reconstruction of past ecosystems and monitoring of modern ecosystems from eDNA data. We provide a conceptual understanding of how eDNA taphonomy and sediment provenance can be addressed and further applied to enhance the scope, resolution, and accuracy of modern and past ecological reconstructions based on eDNA data.
AB - Retrieval of modern and ancient environmental DNA (eDNA) from sediments has revolutionized our ability to study past and present ecosystems. Little emphasis has been placed, however, on the fundamentals of the DNA–sediment associations in environmental settings. Consequently, our understanding of mineralogic controls and geochemical processes that take place on the DNA–sediment interface, and its implications for eDNA taphonomy and provenance, remain extremely limited. Here, we apply interfacial geochemical principles to elucidate how depositional processes and the stability of DNA–sediment associations in different environments can influence our interpretation and identify possible interpretational biases arising from neglecting mineral and geochemical controls on eDNA taphonomy. We use atomic force microscopy to show how interfacial geochemical interactions drive DNA adsorption behavior and we outline how to increase the scope and resolution of ecological interpretations from eDNA by combining mineralogic composition information with experimental adsorption data. We bring the concepts together and propose how to integrate sediment provenance as well as mineralogic and geochemical principles in eDNA taphonomy analysis for improved reconstruction of past ecosystems and monitoring of modern ecosystems from eDNA data. We provide a conceptual understanding of how eDNA taphonomy and sediment provenance can be addressed and further applied to enhance the scope, resolution, and accuracy of modern and past ecological reconstructions based on eDNA data.
KW - atomic force microscopy
KW - DNA preservation
KW - environmental DNA
KW - mineralogy
KW - past ecosystems
KW - surface geochemistry
U2 - 10.1002/edn3.519
DO - 10.1002/edn3.519
M3 - Journal article
AN - SCOPUS:85187866721
VL - 6
JO - Environmental DNA
JF - Environmental DNA
SN - 2637-4943
IS - 2
M1 - e519
ER -
ID: 389422406