title: Biogeographical patterns of soil bacterial communities.
abstract: This study provides the first maps of variations in bacterial community structure on a broad scale based on genotyping of DNA extracts from 593 soils from four different regions of France (North, Brittany, South-East and Landes). Soils were obtained from the soil library of RMQS ('Réseau de Mesures de la Qualité des Sols' = French soil quality monitoring network). The relevance of a biogeographic approach for studying bacterial communities was demonstrated by the great variability in community structure and specific geographical patterns within and between the four regions. The data indicated that the distribution of bacterial community composition might be more related to local factors such as soil type and land cover than to more global factors such as climatic and geomorphologic characteristics. Furthermore, the regional pools of biodiversity could be ordered: South-East ≥ North > Brittany > Landes, according to the observed regional variability of the bacterial communities, which could be helpful for improving land use in accordance with soil biodiversity management.
authors.affiliation: INRA-Université de Bourgogne, UMR Microbiologie du Sol et de l'Environnement, CMSE, 17, rue Sully, B.V. 86510, 21065 Dijon, Cedex, France. Université de Bourgogne, UMR 1229, CMSE, 17, rue Sully, B.V. 86510, 21065 Dijon, Cedex, France. Platform GenoSol, INRA-Université de Bourgogne, CMSE, 17, rue Sully, B.V. 86510, 21065 Dijon, Cedex, France. Université de Lyon, F-69000, Lyon; Université Lyon 1; CNRS, UMR5558, Laboratoire de Biométrie et Biologie Evolutive, F-69622, Villeurbanne Cedex, France. INRA Orléans - US 1106, Unité INFOSOL, Avenue de la Pomme de Pin - BP 20619 Ardon 45166 Olivet, Cedex, France.
authors.forename: Samuel
authors.initials: S
authors.lastname: Dequiedt
authors.forename: Jean
authors.initials: J
authors.lastname: Thioulouse
authors.forename: Claudy
authors.initials: C
authors.lastname: Jolivet
authors.forename: Nicolas P A
authors.initials: NP
authors.lastname: Saby
authors.forename: Mélanie
authors.initials: M
authors.lastname: Lelievre
authors.forename: Pierre-Alain
authors.initials: PA
authors.lastname: Maron
authors.forename: Manuel P
authors.initials: MP
authors.lastname: Martin
authors.forename: Nicolas Chemidlin
authors.initials: NC
authors.lastname: Prévost-Bouré
authors.forename: Benoit
authors.initials: B
authors.lastname: Toutain
authors.forename: Dominique
authors.initials: D
authors.lastname: Arrouays
authors.forename: Philippe
authors.initials: P
authors.lastname: Lemanceau
authors.forename: Lionel
authors.initials: L
authors.lastname: Ranjard