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Morard, Raphael; Lejzerowicz, Franck; Darling, Kate F; Lecroq-Bennet, Beatrice; Pedersen, Mikkel Winther; Orlando, Ludovic; Pawlowski, Jan; Mulitza, Stefan; De Vargas, Colomban; Kucera, Michal (2016): (Supplement 1) Detailed information on environmental samples and sequence data [dataset]. PANGAEA,, Supplement to: Morard, R et al. (2017): Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology. Biogeosciences, 14, 2741-2754,

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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 planktonic foraminifera. We confirm that the largest portion of the metabarcode originates from benthic bottom-dwelling foraminifera, representing the in situ community, but a small portion (<10 %) of the metabarcodes can be unambiguously assigned to planktonic taxa. These organisms live exclusively in the surface ocean and the recovered barcodes thus represent an allochthonous component deposited with the rain of organic remains from the surface ocean. We take advantage of the planktonic foraminifera portion of the metabarcodes to establish to what extent the structure of the surface ocean biota is preserved in sedimentary eDNA. We show that planktonic foraminifera DNA is preserved in a range of marine sediment types, the composition of the recovered eDNA metabarcode is replicable and that both the similarity structure and the diversity pattern are preserved. Our results suggest that sedimentary eDNA could preserve the ecological structure of the entire pelagic community, including non-fossilized taxa, thus opening new avenues for paleoceanographic and paleoecological studies.
Median Latitude: 34.312035 * Median Longitude: 23.499871 * South-bound Latitude: -62.010800 * West-bound Longitude: -65.010000 * North-bound Latitude: 87.069600 * East-bound Longitude: 136.310000
Date/Time Start: 2007-03-22T00:00:00 * Date/Time End: 2008-09-11T19:44:00
Minimum Elevation: -5338.0 m * Maximum Elevation: -222.0 m
Galathea_3_Win3 (Win 3) * Latitude: 17.582000 * Longitude: -65.010000 * Date/Time: 2007-03-22T00:00:00 * Elevation: -4352.0 m * Campaign: Galathea 3 * Basis: HDMS Vaedderen
Galathea_3_Win4 (Win 4) * Latitude: 18.135600 * Longitude: -64.323700 * Date/Time: 2007-03-22T00:00:00 * Elevation: -1745.0 m * Campaign: Galathea 3 * Basis: HDMS Vaedderen
Galathea_3_Win6 (Win 6) * Latitude: 18.052600 * Longitude: -64.563100 * Date/Time: 2007-03-23T00:00:00 * Elevation: -2875.0 m * Campaign: Galathea 3 * Basis: HDMS Vaedderen
Swiss National Science Foundation grants 31003A-140766 and 313003A-159709.
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventMorard, Raphael
2Latitude of eventLatitudeMorard, Raphael
3Longitude of eventLongitudeMorard, Raphael
4Elevation of eventElevationmMorard, Raphael
5Date/Time of eventDate/TimeMorard, Raphael
6NameNameMorard, RaphaelLibrary name
7Cruise/expeditionExpeditionMorard, Raphael
8Station labelStationMorard, Raphael
9Sediment typeSedimentMorard, Raphael
10Reference/sourceReferenceMorard, Raphael
11ReadsReads#Morard, RaphaelTotal raw reads
12ReadsReads#Morard, RaphaelFiltered reads
13Number of sequencesSequence no#Morard, RaphaelDereplicated sequences
14ReadsReads#Morard, RaphaelReads - no singletons
15Number of sequencesSequence no#Morard, RaphaelDereplicated sequences - no singletons
16ReadsReads#Morard, RaphaelTotal number of planktonic foraminifera reads
17Number of sequencesSequence no#Morard, RaphaelNumber of planktonic foraminifera dereplicated sequences
18ReadsReads#Morard, RaphaelNumber of retained reads
19Number of e-ribotypeNo e-ribotype#Morard, RaphaelNumber of unique e-ribotype per sample
20Number of genotypeNo genotype#Morard, RaphaelNumber of unique genotype per sample
21Number of morphospeciesNo morphospecies#Morard, RaphaelNumber of unique morphospecies per sample
496 data points

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