événements et news

publications

Benthic monitoring of oil and gas offshore platforms in the North Sea using environmental DNA metabarcoding.

Since 2010, considerable efforts have been undertaken to monitor the environmental status of European marine waters and ensuring the development of methodological standards for the evaluation of this status. However, the current routine biomonitoring implicates time-consuming and costly manual sorting and morphological identification of benthic macrofauna. Environmental DNA (eDNA) metabarcoding represents an alternative to the traditional monitoring method with very promising results. Here, we tested it further by performing eDNA metabarcoding of benthic eukaryotic communities in the vicinity of two offshore oil and gas platforms in the North Sea. Three different genetic markers (18S V1V2, 18S V9 and COI) were used to assess the environmental pressures induced by the platforms. All markers showed patterns of alpha and beta diversity consistent with morphology-based macrofauna analyses. In particular, the communities structure inferred from metabarcoding and morphological data significantly changed along distance gradients from the platforms. The impact of the operational discharges was also detected by the variation of biotic indices values, AMBI index showing the best correlation between morphological and eDNA datasets. Finally, the sediment physicochemical parameters were used to build a local de novo pressure index that served as benchmark to test the potential of a taxonomy-free approach. Our study demonstrates that metabarcoding approach outperforms morphology-based approach and can be used as a cost and time-saving alternative solution to the traditional morphology-based monitoring in order to monitor more efficiently the impact of industrial activities on marine biodiversity.

news

L’origine des couleurs de peau révélée grâce aux serpents

Une mutation du serpent des blés couleur lavande permet laboratoire de Michel Milinkovitch de comprendre les mécanismes responsables de l’extraordinaire variété de couleurs de peau chez les vertébrés.

événements

Current approaches for the efficient isolation and identification of plant and fungal secondary metabolites

02.12.2020 11:15, 1S059 (Sciences III)

Emerson Ferreira Queiroz (Phytochimie et Produits Naturels Bioactifs, Section des Sciences Pharmaceutiques, UNIGE).
organisé par: Luis Lopez Molina.

Recherche

Notre département regroupe 12 laboratoires de recherche employant un total de presque 200 scientifiques, ingénieurs et techniciens. Les sujets de recherche de ces laboratoires vont de la génétique du développement à la régénération en passant par l'evo-devo, la biologie physique, phylogénétique, la systématique et l'anthropologie.

plus

Education

Nos professeurs et enseignants participe directement à l'enseignement des sciences de la vie à l'Université de Genève. Nous proposons aussi des spécialisations aux étudiants en master et aux doctorants à travers divers programmes.

plus

contact

Département de Génétique et Evolution
Quai Ernest-Ansermet, 30
1205 Genève
Suisse

bureau: 4002A
T: +41 22 379 67 85

plus