Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology
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 ( e DNA...
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ftdoajarticles:oai:doaj.org/article:6aca94f05e28474396bc549f93d27eb7 2023-05-15T18:00:21+02:00 Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology R. Morard F. Lejzerowicz K. F. Darling B. Lecroq-Bennet M. Winther Pedersen L. Orlando J. Pawlowski S. Mulitza C. de Vargas M. Kucera 2017-06-01T00:00:00Z https://doi.org/10.5194/bg-14-2741-2017 https://doaj.org/article/6aca94f05e28474396bc549f93d27eb7 EN eng Copernicus Publications http://www.biogeosciences.net/14/2741/2017/bg-14-2741-2017.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-14-2741-2017 1726-4170 1726-4189 https://doaj.org/article/6aca94f05e28474396bc549f93d27eb7 Biogeosciences, Vol 14, Pp 2741-2754 (2017) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2017 ftdoajarticles https://doi.org/10.5194/bg-14-2741-2017 2022-12-31T14:35:12Z 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 ( e DNA) 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 e DNA 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 e DNA 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 e DNA. We show that planktonic foraminifera DNA is preserved in a range of marine sediment types, the composition of the recovered e DNA metabarcode is replicable and that both the similarity structure and the diversity pattern are preserved. Our results suggest that sedimentary e DNA could preserve the ecological structure of the entire pelagic community, including non-fossilized ... Article in Journal/Newspaper Planktonic foraminifera Directory of Open Access Journals: DOAJ Articles Biogeosciences 14 11 2741 2754 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 R. Morard F. Lejzerowicz K. F. Darling B. Lecroq-Bennet M. Winther Pedersen L. Orlando J. Pawlowski S. Mulitza C. de Vargas M. Kucera Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
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 ( e DNA) 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 e DNA 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 e DNA 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 e DNA. We show that planktonic foraminifera DNA is preserved in a range of marine sediment types, the composition of the recovered e DNA metabarcode is replicable and that both the similarity structure and the diversity pattern are preserved. Our results suggest that sedimentary e DNA could preserve the ecological structure of the entire pelagic community, including non-fossilized ... |
format |
Article in Journal/Newspaper |
author |
R. Morard F. Lejzerowicz K. F. Darling B. Lecroq-Bennet M. Winther Pedersen L. Orlando J. Pawlowski S. Mulitza C. de Vargas M. Kucera |
author_facet |
R. Morard F. Lejzerowicz K. F. Darling B. Lecroq-Bennet M. Winther Pedersen L. Orlando J. Pawlowski S. Mulitza C. de Vargas M. Kucera |
author_sort |
R. Morard |
title |
Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology |
title_short |
Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology |
title_full |
Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology |
title_fullStr |
Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology |
title_full_unstemmed |
Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology |
title_sort |
planktonic foraminifera-derived environmental dna extracted from abyssal sediments preserves patterns of plankton macroecology |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/bg-14-2741-2017 https://doaj.org/article/6aca94f05e28474396bc549f93d27eb7 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Biogeosciences, Vol 14, Pp 2741-2754 (2017) |
op_relation |
http://www.biogeosciences.net/14/2741/2017/bg-14-2741-2017.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-14-2741-2017 1726-4170 1726-4189 https://doaj.org/article/6aca94f05e28474396bc549f93d27eb7 |
op_doi |
https://doi.org/10.5194/bg-14-2741-2017 |
container_title |
Biogeosciences |
container_volume |
14 |
container_issue |
11 |
container_start_page |
2741 |
op_container_end_page |
2754 |
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1766169416718876672 |