112467 20240319080958.0 doi 10.3390/plants11101276 sideral 128524 ART-2022-128524 eng Arnelas, Itziar Molecular Systematics of Valerianella Mill. (Caprifoliaceae): Challenging the Taxonomic Value of Genetically Controlled Carpological Traits 2022 Access copy available to the general public Unrestricted : Valerianella (cornsalad) is a taxonomically complex genus formed by 50–65 annual Holarctic species classified into at least four main sections. Carpological traits (sizes and shapes of achenes and calyx teeth) have been used to characterize its sections and species. However, the potential systematic value of these traits at different taxonomic ranks (from sections to species (and infraspecific taxa)) has not been tested phylogenetically yet. Here, we have assessed the evolutionary systematic value of Valerianella diagnostic carpological traits at different hierarchical ranks and have demonstrated their ability to separate taxa at the sectional level but not at species level for species of several species pairs. A total of 426 individuals (17 species, 4 sections) of Valerianella were analyzed using AFLP and plastid data. Genetic clusters, phylogenetic trees, and haplotype networks support the taxonomic classification of Valerianella at the four studied sectional levels (V. sects. Valerianella, Cornigerae, Coronatae, Platycoelae) but show admixture for ten taxa from five species pairs (V. locusta—V. carinata, V. coronata—V. pumila, V. multidentata—V. discoidea, V. dentata—V. rimosa, V. eriocarpa—V. microcarpa), which are not reciprocally monophyletic. Dating analyses indicate that the Valerianella sections are relatively old (mid-Miocene), while most species diverged in the Pliocene–Pleistocene. A new section Valerianella sect. Stipitae is described to accommodate the highly divergent and taxonomically distinct V. fusiformis type species. Taxonomic treatments that recognize the sectional ranks and that subsume the separate species of each species pair into single species represent a natural classification for Valerianella. info:eu-repo/grantAgreement/ES/DGA-FSE/Bioflora info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 4.5 2022 PLANT SCIENCES 43 / 239 = 0.18 2022 Q1 T1 0.79 2022 Ecology 2022 Q1 Plant Science 2022 Q1 Ecology, Evolution, Behavior and Systematics 2022 Q1 5.4 2022 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pérez-Collazos, Ernesto Universidad de Zaragoza (orcid)0000-0002-8731-1009 López-Martínez, Josefa Devesa, Juan Antonio Catalán, Pilar Universidad de Zaragoza (orcid)0000-0001-7793-5259 5011 063 Universidad de Zaragoza Dpto. CC.Agrar.y Medio Natural Área Botánica 11 (2022), 1276 [22 pp.] Plants 2223-7747 368817 http://zaguan.unizar.es/record/112467/files/texto_completo.pdf Versión publicada 2622310 http://zaguan.unizar.es/record/112467/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:112467 articulos driver 2024-03-18-13:50:53 ARTICLE