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Auteur (up) Escalas, A.; Bouvier, T.; Mouchet, M.A.; Leprieur, F.; Bouvier, C.; Troussellier, M.; Mouillot, D. url  doi
  Titre A unifying quantitative framework for exploring the multiple facets of microbial biodiversity across diverse scales Type Article scientifique
  Année 2013 Publication Revue Abrégée Environmental microbiology  
  Volume 15 Numéro 10 Pages 2642-2657  
  Mots-Clés Microbial communities; Rao quadratic entropy; metagenomic; microbial biodiversity; molecular fingerprint; β diversity  
  Résumé Recent developments of molecular tools have revolutionized our knowledge of microbial biodiversity by allowing detailed exploration of its different facets and generating unprecedented amount of data. One key issue with such large datasets is the development of diversity measures that cope with different data outputs and allow comparison of biodiversity across different scales. Diversity has indeed three components: local (alpha), regional (gamma) and the overall difference between local communities (beta). Current measures of microbial diversity, derived from several approaches, provide complementary but different views. They only capture the beta component of diversity, compare communities in a pairwise way, consider all species as equivalent or lack a mathematically explicit relationship among the alpha, beta and gamma components. We propose a unified quantitative framework based on the Rao quadratic entropy, to obtain an additive decomposition of diversity (gamma = alpha + beta), so the three components can be compared, and that integrate the relationship (phylogenetic or functional) among Microbial Diversity Units that compose a microbial community. We show how this framework is adapted to all types of molecular data, and we highlight crucial issues in microbial ecology that would benefit from this framework and propose ready-to-use R-functions to easily set up our approach.  
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  ISSN 1462-2920 ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 430  
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