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Persistence of environmental DNA in cultivated soils: implication of this memory effect for reconstructing the dynamics of land use and cover changes.
Foucher, Anthony; Evrard, Olivier; Ficetola, G Francesco; Gielly, Ludovic; Poulain, Julie; Giguet-Covex, Charline; Laceby, J Patrick; Salvador-Blanes, Sébastien; Cerdan, Olivier; Poulenard, Jérôme.
Afiliação
  • Foucher A; Laboratoire Des Sciences du Climat Et de L'Environnement (LSCE/IPSL), UMR 8212 (CEA/CNRS/UVSQ), Université Paris-Saclay - Orme Des Merisiers, 91191, Gif-sur-Yvette Cedex, France. Anthony.foucher@outlook.com.
  • Evrard O; Laboratoire Des Sciences du Climat Et de L'Environnement (LSCE/IPSL), UMR 8212 (CEA/CNRS/UVSQ), Université Paris-Saclay - Orme Des Merisiers, 91191, Gif-sur-Yvette Cedex, France.
  • Ficetola GF; Department of Environmental Science and Policy, Università Degli Studi Di Milano, Milan, Italy.
  • Gielly L; Laboratoire d'Écologie Alpine, CNRS, Université Grenoble Alpes, Grenoble, France.
  • Poulain J; Laboratoire d'Écologie Alpine, CNRS, Université Grenoble Alpes, Grenoble, France.
  • Giguet-Covex C; Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France.
  • Laceby JP; Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, EDYTEM (Environnements, DYnamiques Et TErritoires de La Montagne), Chambéry, France.
  • Salvador-Blanes S; Environmental Monitoring and Science Division (EMSD), Alberta Environment and Parks (AEP), Calgary, AB, Canada.
  • Cerdan O; Laboratoire GéoHydrosystèmes Continentaux (GéHCO), E.A 6293, Faculté des Sciences et Techniques, Université F. Rabelais de Tours, Parc de Grandmont, 37200, Tours, France.
  • Poulenard J; Département Risques et Prévention, Bureau de Recherches Géologiques et Minières (BRGM), 3 avenue Claude Guillemin, 45060, Orléans, France.
Sci Rep ; 10(1): 10502, 2020 06 29.
Article em En | MEDLINE | ID: mdl-32601368
ABSTRACT
eDNA refers to DNA extracted from an environmental sample with the goal of identifying the occurrence of past or current biological communities in aquatic and terrestrial environments. However, there is currently a lack of knowledge regarding the soil memory effect and its potential impact on lake sediment eDNA records. To investigate this issue, two contrasted sites located in cultivated environments in France were studied. In the first site, soil samples were collected (n = 30) in plots for which the crop rotation history was documented since 1975. In the second site, samples were collected (n = 40) to compare the abundance of currently observed taxa versus detected taxa in cropland and other land uses. The results showed that the last cultivated crop was detected in 100% of the samples as the most abundant. In addition, weeds were the most abundant taxa identified in both sites. Overall, these results illustrate the potential of eDNA analyses for identifying the recent (< 10 years) land cover history of soils and outline the detection of different taxa in cultivated plots. The capacity of detection of plant species grown on soils delivering sediments to lacustrine systems is promising to improve our understanding of sediment transfer processes over short timescales.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Solo / Sedimentos Geológicos / DNA Ambiental Tipo de estudo: Prognostic_studies País como assunto: Europa Idioma: En Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Solo / Sedimentos Geológicos / DNA Ambiental Tipo de estudo: Prognostic_studies País como assunto: Europa Idioma: En Ano de publicação: 2020 Tipo de documento: Article