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Multilocus analyses of an Antarctic fish species flock (Teleostei, Notothenioidei, Trematominae): Phylogenetic approach and test of the early-radiation event

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    0368205 - ÚŽFG 2012 RIV US eng J - Článek v odborném periodiku
    Janko, Karel - Marshall, C. - Musilová, Zuzana - Van Houdt, J. - Couloux, A. - Cruaud, C. - Lecointre, G.
    Multilocus analyses of an Antarctic fish species flock (Teleostei, Notothenioidei, Trematominae): Phylogenetic approach and test of the early-radiation event.
    Molecular Phylogenetics and Evolution. Roč. 60, č. 3 (2011), s. 305-316. ISSN 1055-7903. E-ISSN 1095-9513
    Grant CEP: GA AV ČR KJB600450903; GA MŠMT LC06073
    Výzkumný záměr: CEZ:AV0Z50450515
    Klíčová slova: Species tree versus gene tree * Multilocus phylogeny * Diversification rate
    Kód oboru RIV: EB - Genetika a molekulární biologie
    Impakt faktor: 3.609, rok: 2011

    Clades that have undergone episodes of rapid cladogenesis are challenging from a phylogenetic point of view. They are generally characterised by short or missing internal branches in phylogenetic trees and by conflicting topologies among individual gene trees. This may be the case of the subfamily Trematominae, a group of marine teleosts of coastal Antarctic waters, which is considered to have passed through a period of rapid diversification. Despite much phylogenetic attention, the relationships among Trematominae species remain unclear. In contrast to previous studies that were mostly based on concatenated datasets of mitochondrial and/or single nuclear loci, we applied various single-locus and multilocus phylogenetic approaches to sequences from 11 loci (eight nuclear) and we also used several methods to assess the hypothesis of a radiation event in Trematominae evolution. Diversification rate analyses support the hypothesis of a period of rapid diversification during
    Trvalý link: http://hdl.handle.net/11104/0202611

     
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