Lauron-MoreauPitreArgusEtAl2015

Référence

Lauron-Moreau, A., Pitre, F.E., Argus, G.W., Labrecque, M. and Brouillet, L. (2015) Phylogenetic relationships of American Willows (Salix L., Salicaceae). PLoS ONE, 10(4). (Scopus )

Résumé

Salix L. is the largest genus in the family Salicaceae (450 species). Several classifications have been published, but taxonomic subdivision has been under continuous revision. Our goal is to establish the phylogenetic structure of the genus using molecular data on all American willows, using three DNA markers. This complete phylogeny of American willows allows us to propose a biogeographic framework for the evolution of the genus. Material was obtained for the 122 native and introduced willow species of America. Sequences were obtained from the ITS (ribosomal nuclear DNA) and two plastid regions, matK and rbcL. Phylogenetic analyses (parsimony, maximum likelihood, Bayesian inference) were performed on the data. Geographic distribution was mapped onto the tree. The species tree provides strong support for a division of the genus into two subgenera, Salix and Vetrix. Subgenus Salix comprises temperate species from the Americas and Asia, and their disjunction may result from Tertiary events. Subgenus Vetrix is composed of boreo-arctic species of the Northern Hemisphere and their radiation may coincide with the Quaternary glaciations. Sixteen species have ambiguous positions; genetic diversity is lower in subg. Vetrix. A molecular phylogeny of all species of American willows has been inferred. It needs to be tested and further resolved using other molecular data. Nonetheless, the genus clearly has two clades that have distinct biogeographic patterns. © 2015 Lauron-Moreau et al.

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@ARTICLE { Lauron-MoreauPitreArgusEtAl2015,
    AUTHOR = { Lauron-Moreau, A. and Pitre, F.E. and Argus, G.W. and Labrecque, M. and Brouillet, L. },
    TITLE = { Phylogenetic relationships of American Willows (Salix L., Salicaceae) },
    JOURNAL = { PLoS ONE },
    YEAR = { 2015 },
    VOLUME = { 10 },
    NUMBER = { 4 },
    NOTE = { cited By 1 },
    ABSTRACT = { Salix L. is the largest genus in the family Salicaceae (450 species). Several classifications have been published, but taxonomic subdivision has been under continuous revision. Our goal is to establish the phylogenetic structure of the genus using molecular data on all American willows, using three DNA markers. This complete phylogeny of American willows allows us to propose a biogeographic framework for the evolution of the genus. Material was obtained for the 122 native and introduced willow species of America. Sequences were obtained from the ITS (ribosomal nuclear DNA) and two plastid regions, matK and rbcL. Phylogenetic analyses (parsimony, maximum likelihood, Bayesian inference) were performed on the data. Geographic distribution was mapped onto the tree. The species tree provides strong support for a division of the genus into two subgenera, Salix and Vetrix. Subgenus Salix comprises temperate species from the Americas and Asia, and their disjunction may result from Tertiary events. Subgenus Vetrix is composed of boreo-arctic species of the Northern Hemisphere and their radiation may coincide with the Quaternary glaciations. Sixteen species have ambiguous positions; genetic diversity is lower in subg. Vetrix. A molecular phylogeny of all species of American willows has been inferred. It needs to be tested and further resolved using other molecular data. Nonetheless, the genus clearly has two clades that have distinct biogeographic patterns. © 2015 Lauron-Moreau et al. },
    ART_NUMBER = { e0121965 },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1371/journal.pone.0121965 },
    KEYWORDS = { cell nucleus DNA; internal transcribed spacer, Article; biogeography; controlled study; DNA sequence; genetic polymorphism; genetic variability; geographic distribution; geographic mapping; matK gene; molecular phylogeny; nonhuman; plant evolution; plant gene; rbcL gene; Salicaceae; Vetrix; willow, Salicaceae; Salix },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84928137579&partnerID=40&md5=eb68f31e1703cbb4566bf9a0285b77d9 },
}

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