A deep dig-hindsight on Holocene plant composition from ancient environmental DNA

Détails

ID Serval
serval:BIB_7D10657E943D
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Editorial
Collection
Publications
Institution
Titre
A deep dig-hindsight on Holocene plant composition from ancient environmental DNA
Périodique
Molecular Ecology
Auteur⸱e⸱s
Gugerli F., Alvarez N., Tinner W.
ISSN
0962-1083
Statut éditorial
Publié
Date de publication
2013
Peer-reviewed
Oui
Volume
22
Numéro
13
Pages
3433-3436
Langue
anglais
Résumé
Want a glimpse at past vegetation? Studying pollen and other plant remains, which are preserved for example in lake sediments or mires for thousands of years, allows us to document regional occurrences of plant species over radiocarbon-dated time series. Such vegetation reconstructions derived from optical analyses of fossil samples are inherently incomplete because they only comprise taxa that contribute sufficient amounts of pollen, spores, macrofossil or other evidences. To complement optical analyses for paleoecological inference, molecular markers applied to ancient DNA (aDNA) may help in disclosing information hitherto inaccessible to biologists. Parducci etal. (2013) targeted aDNA from sediment cores of two lakes in the Scandes Mountains with generic primers in a meta-barcoding approach. When compared to palynological records from the same cores, respective taxon lists show remarkable differences in their compositions, but also in quantitative representation and in taxonomic resolution similar to a previous study (JOrgensen etal. 2012). While not free of assumptions that need critical and robust testing, notably the question of possible contamination, this study provides thrilling prospects to improve our knowledge about past vegetation composition, but also other organismic groups, stored as a biological treasure in the ground.
Mots-clé
DNA barcoding, environmental DNA, macrofossils, paleoecology, palynology, vegetation history
Web of science
Open Access
Oui
Création de la notice
24/04/2013 15:57
Dernière modification de la notice
20/08/2019 15:38
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