Accéder directement au contenu Accéder directement à la navigation
Communication dans un congrès

Influence function for robust phylogenetic reconstruction

Abstract : Phylogenies in short, are the most convenient way to describe the relationship between different species and are widely used in several fields of biology: comparative genomics, epidemiology, conservation biology, etc. However, most inferences drawn from phylogenies are accurate only if the reconstructed phylogeny itself is accurate. For a given reconstruction bias, robust phylogenies are preferred to non robust ones. We are concerned here with the loss of robustness induced by outliers. One way to mitigate this loss is to detect and remove outliers from the dataset. We advocate the use of empirical influence functions to detect influent characters and taxa, which are prone to be outliers, and their removal from the data set to build robust phylogenies. Three data sets (Zygomycetes, placental mammals, T-box gene family) show that maximum likelihood phylogenies are not robust and that removing as few as a handful of outliers can significantlyincrease the robustness of a tree, as measured by average bootstrap values.
Type de document :
Communication dans un congrès
Liste complète des métadonnées

Littérature citée [1582 références]  Voir  Masquer  Télécharger

https://hal.inrae.fr/hal-02746361
Déposant : Migration Prodinra <>
Soumis le : mercredi 3 juin 2020 - 10:01:32
Dernière modification le : vendredi 12 juin 2020 - 10:43:26

Fichiers

jobim_2011_Mariadassou_1.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-02746361, version 1
  • PRODINRA : 184203

Collections

Citation

Mahendra Mariadassou, Avner Bar-Hen. Influence function for robust phylogenetic reconstruction. JOBIM 2011, Jun 2011, Paris, France. pp.422. ⟨hal-02746361⟩

Partager

Métriques

Consultations de la notice

5

Téléchargements de fichiers

8