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Integrating restriction site-associated DNA sequencing (RAD-seq) with morphological cladistic analysis clarifies evolutionary relationships among major species groups of bee orchids / Richard M. Bateman in Annals of Botany, vol. 121, n°1 (Année 2018)
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Titre : Integrating restriction site-associated DNA sequencing (RAD-seq) with morphological cladistic analysis clarifies evolutionary relationships among major species groups of bee orchids Type de document : texte imprimé Auteurs : Richard M. Bateman, Auteur ; Gábor Sramkó, Auteur ; Ovidiu Paun, Auteur Année de publication : 2018 Article en page(s) : pp. 85-105 Langues : Anglais (eng) Catégories : [Espèces (in biblio)] Ophrys Mots-clés : biogéographie évolution morphologie phylogénétique systématique pseudo-copulation séquençage génétique Résumé : "Bee orchids (Ophrys) have become the most popular model system for studying reproduction via insect-mediated pseudo-copulation and for exploring the consequent, putatively adaptive, evolutionary radiations. However, despite intensive past research, both the phylogenetic structure and species diversity within the genus remain highly contentious. Here, we integrate next-generation sequencing and morphological cladistic techniques to clarify the phylogeny of the genus.
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The comparatively high level of morphological homoplasy reflects extensive convergence, whereas the derived placement of the fusca group is attributed to paedomorphic simplification. The phenotype of the most recent common ancestor of the extant lineages is inferred, but it post-dates the majority of the character-state changes that typify the genus. RAD-seq may represent the high-water mark of the contribution of molecular phylogenetics to understanding evolution within Ophrys; further progress will require large-scale population-level studies that integrate phenotypic and genotypic data in a cogent conceptual framework." (source : auteurs)Type de publication : périodique Référence biblio : Bateman R., Sramkó G., Paun O., 2018 - Integrating restriction site-associated DNA sequencing (RAD-seq) with morphological cladistic analysis clarifies evolutionary relationships among major species groups of bee orchids. Annals of Botany, 121 (1) : 85-105. En ligne : https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5786241/pdf/mcx129.pdf Format de la ressource électronique : document Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=67821
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