Spatial distribution of sedimentary DNA is taxon-specific and linked to local occurrence at intra-lake scale

Yi Wang; Martin Wessels; Mikkel Winther Pedersen; Laura S. Epp

doi:10.1038/s43247-023-00829-y

Spatial distribution of sedimentary DNA is taxon-specific and linked to local occurrence at intra-lake scale

Yi Wang^*, Martin Wessels, Mikkel Winther Pedersen, Laura S. Epp

^*Corresponding author af dette arbejde

Section for Geogenetics

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

4 Citationer (Scopus)

14 Downloads (Pure)

Abstract

Environmental archives, such as lake sediments, harbour DNA of past and present ecosystems. However, our understanding of the provenance, deposition and distribution of sedimentary DNA in lake systems is largely unknown, limiting the breadth of derived spatiotemporal inferences. By mapping the distribution of aquatic and terrestrial taxa in a large deep lake using metabarcoding, we characterise the spatial heterogeneity of sedimentary DNA and point to its potential driving factors. Taxa composition varies across geographic gradients in the lake, and spatial distribution of DNA is linked to the range and life mode of organisms. Exogenous taxa, such as alpine plants, have the most reliable detection near the mouth of the inflow. Our data reveal that sedimentary DNA is reflecting the mosaic distribution of organisms and organic remains in the environment, and a single location from lakes with watersheds across different elevations, biomes or other diversity boundaries does not capture the full dynamics in the surrounding area.

Originalsprog	Engelsk
Artikelnummer	172
Tidsskrift	Communications Earth and Environment
Vol/bind	4
Antal sider	13
ISSN	2662-4435
DOI	https://doi.org/10.1038/s43247-023-00829-y
Status	Udgivet - 2023

Bibliografisk note

Funding Information:
This work was supported by the Baden-Württemberg Foundation through the Elite Programme for Postdocs and the Young Scholar Fund of the University of Konstanz, both granted to Laura S. Epp. Yi Wang is funded by the graduate school scholarship programme (ID: 57450037) of the German Academic Exchange Service (DAAD), and by the Research Training Group R3 - Resilience of Lake Ecosystems (GRK 2272, DFG award number 298726046) at the University of Konstanz. We thank the Scientific Compute Cluster at University of Konstanz for providing computation resources. We thank Myriam Schmid, Lisa Gutbrod, Iljas Müller, Kurt Sarembe and Andreas Schießl for assistance in sampling and in the laboratory, as well as Alfred Sulger, Charo López-Blanco and Paula Kankaala for providing copepod specimens.

Publisher Copyright:
© 2023, The Author(s).

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10.1038/s43247-023-00829-yLicens: CC BY

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Citationsformater

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abstract = "Environmental archives, such as lake sediments, harbour DNA of past and present ecosystems. However, our understanding of the provenance, deposition and distribution of sedimentary DNA in lake systems is largely unknown, limiting the breadth of derived spatiotemporal inferences. By mapping the distribution of aquatic and terrestrial taxa in a large deep lake using metabarcoding, we characterise the spatial heterogeneity of sedimentary DNA and point to its potential driving factors. Taxa composition varies across geographic gradients in the lake, and spatial distribution of DNA is linked to the range and life mode of organisms. Exogenous taxa, such as alpine plants, have the most reliable detection near the mouth of the inflow. Our data reveal that sedimentary DNA is reflecting the mosaic distribution of organisms and organic remains in the environment, and a single location from lakes with watersheds across different elevations, biomes or other diversity boundaries does not capture the full dynamics in the surrounding area.",

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T1 - Spatial distribution of sedimentary DNA is taxon-specific and linked to local occurrence at intra-lake scale

AU - Wang, Yi

AU - Wessels, Martin

AU - Pedersen, Mikkel Winther

AU - Epp, Laura S.

PY - 2023

Y1 - 2023

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AB - Environmental archives, such as lake sediments, harbour DNA of past and present ecosystems. However, our understanding of the provenance, deposition and distribution of sedimentary DNA in lake systems is largely unknown, limiting the breadth of derived spatiotemporal inferences. By mapping the distribution of aquatic and terrestrial taxa in a large deep lake using metabarcoding, we characterise the spatial heterogeneity of sedimentary DNA and point to its potential driving factors. Taxa composition varies across geographic gradients in the lake, and spatial distribution of DNA is linked to the range and life mode of organisms. Exogenous taxa, such as alpine plants, have the most reliable detection near the mouth of the inflow. Our data reveal that sedimentary DNA is reflecting the mosaic distribution of organisms and organic remains in the environment, and a single location from lakes with watersheds across different elevations, biomes or other diversity boundaries does not capture the full dynamics in the surrounding area.

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DO - 10.1038/s43247-023-00829-y

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JO - Communications Earth and Environment

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