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Phylogeny and evolution of a highly diversified catfish subfamily: the Loricariinae (Siluriformes, Loricariidae)

Fisch-Muller, Sonia
Dray, Stéphane
Defense Thèse de doctorat : Univ. Genève, 2011 - Sc. 4359 - 2011/09/15
Abstract The Loricariinae belong to the Neotropical mailed catfish family Loricariidae. A first exhaustive and robust phylogeny of this group was reconstructed using mitochondrial and nuclear data. The resulting phylogeny indicated that the Harttiini tribe formed a paraphyletic assemblage, and within the Loricariini tribe, two sister subtribes were distinguished, Farlowellina and Loricariina. Subsequently using this phylogeny as exploratory tool, we demonstrated: (1) using co-inertia analysis that the diagnostic features provided to define the different genera were phylogenetically dependent; (2) using multiple co-inertia analysis that the underlying evolutionary forces shaping their diversification included intraphenotypic (morphology and genetics) and extraphenotypic (ecology and distribution) components; (3) using the RLQ analysis that co-dispersion events occurred between co-distributed species responsible for the current fish distribution; and (4) using the multi-scale pattern analysis that the co-evolution in traits related to the mouth characteristics was linked to reproductive functions responsible for a tertiary evolution of this organ.
Keywords Phylogénie moléculaireAnalyses multivariéesAnalyses multi-tableauxCoévolutionCo-dispersionContraintes évolutives
URN: urn:nbn:ch:unige-176310
Note Thèse en cotutelle avec l'Université Claude Bernard - Lyon 1, France
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COVAIN, Raphaël. Phylogeny and evolution of a highly diversified catfish subfamily: the Loricariinae (Siluriformes, Loricariidae). Université de Genève. Thèse, 2011. https://archive-ouverte.unige.ch/unige:17631

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Deposited on : 2011-11-29

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