(Supplement 1) Detailed information on environmental samples and sequence data ...
Deep-sea sediments constitute a unique archive of ocean change, fueled by a permanent rain of mineral and organic remains from the surface ocean. Until now, paleo-ecological analyses of this archive have been mostly based on information from taxa leaving fossils. In theory, environmental DNA (eDNA)...
Main Authors: | , , , , , , , , , |
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Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2016
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Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.868770 https://doi.pangaea.de/10.1594/PANGAEA.868770 |
Summary: | Deep-sea sediments constitute a unique archive of ocean change, fueled by a permanent rain of mineral and organic remains from the surface ocean. Until now, paleo-ecological analyses of this archive have been mostly based on information from taxa leaving fossils. In theory, environmental DNA (eDNA) in the sediment has the potential to provide information on non-fossilized taxa, allowing more comprehensive interpretations of the fossil record. Yet, the process controlling the transport and deposition of eDNA onto the sediment and the extent to which it preserves the features of past oceanic biota remains unknown. Planktonic foraminifera are the ideal taxa to allow an assessment of the eDNA signal modification during deposition because their fossils are well preserved in the sediment and their morphological taxonomy is documented by DNA barcodes. Specifically, we re-analyze foraminiferal-specific metabarcodes from 31 deep-sea sediment samples, which were shown to contain a small fraction of sequences from ... : Swiss National Science Foundation grants 31003A-140766 and 313003A-159709. ... |
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