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Tennant, R.K.* ; Lux, T. ; Sambles, C.M.* ; Kuhn, N.J.* ; Petticrew, E.L.* ; Oldfield, R.* ; Parker, D.A.* ; Hatton, J.* ; Moore, K.A.* ; Lee, R.* ; Turney, C.S.M.* ; Jones, R.T.* ; Love, J.*

Palaeogenomics of the hydrocarbon producing microalga Botryococcus braunii.

Sci. Rep. 9:1776 (2019)
Publ. Version/Full Text Research data DOI PMC
Open Access Gold
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Botryococcus braunii is a colonial microalga that appears early in the fossil record and is a sensitive proxy of environmental and hydroclimatic conditions. Palaeozoic Botryococcus fossils which contribute up to 90% of oil shales and approximately 1% of crude oil, co-localise with diagnostic geolipids from the degradation of source-signature hydrocarbons. However more recent Holocene sediments demonstrate no such association. Consequently, Botryococcus are identified in younger sediments by morphology alone, where potential misclassifications could lead to inaccurate paleoenvironmental reconstructions. Here we show that a combination of flow cytometry and ancient DNA (aDNA) sequencing can unambiguously identify Botryococcus microfossils in Holocene sediments with hitherto unparalleled accuracy and rapidity. The application of aDNA sequencing to microfossils offers a far-reaching opportunity for understanding environmental change in the recent geological record. When allied with other high-resolution palaeoenvironmental information such as aDNA sequencing of humans and megafauna, aDNA from microfossils may allow a deeper and more precise understanding of past environments, ecologies and migrations.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Enabling Rapid Purification; Read Alignment; Organic-matter; Ice-core; Alga; Ancient; Race; Lake; Indicators; Sediments
Language english
Publication Year 2019
HGF-reported in Year 2019
ISSN (print) / ISBN 2045-2322
e-ISSN 2045-2322
Journal Scientific Reports
Quellenangaben Volume: 9, Issue: 1, Pages: , Article Number: 1776 Supplement: ,
Publisher Nature Publishing Group
Publishing Place London
Reviewing status Peer reviewed
Institute(s) Research Unit Plant Genome and Systems Biology (PGSB)
POF-Topic(s) 30202 - Environmental Health
Research field(s) Environmental Sciences
PSP Element(s) G-503500-002
DOI 10.1038/s41598-018-38236-5
WOS ID WOS:000458295900056
Scopus ID 85061244652
PubMed ID 30742038
Erfassungsdatum 2019-03-12
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