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'Internal transcribed spacer (ITS)' 




Redefining the phylogenetic relationships of European Angelica (Apiaceae) species / Claudia González-Toral in Plant Biosystems, vol. 158, n°1 (Année 2024)
[article]
Titre : Redefining the phylogenetic relationships of European Angelica (Apiaceae) species Auteurs : Claudia González-Toral, Auteur ; Andrea EstandÃa, Auteur ; Marta Pérez, Auteur ; Thomas E. Holloway, Auteur ; Herminio S. Nava, Auteur ; José Antonio Fernández Prieto, Auteur ; Eduardo Cires, Auteur Année de publication : 2024 Article en page(s) : pp. 155-181 Langues : Anglais (eng) Catégories : [ZG] Europe occidentale
[ZG] Péninsule ibérique
[Espèces (in biblio)] Angelica
[Thèmes] TaxonomieMots-clés : diversité morphologique méthode moléculaire Internal transcribed spacer (ITS) Résumé : "Angelica (Apiaceae) is a large complex genus with high morphological diversity. The many taxonomic treatments explain the controversy regarding the number of European species, which range from four to ten. Molecular methods have unraveled the complicated Asian and American taxonomies; however, no comprehensive molecular study has been conducted on the European taxa. We aim to determine the number of different European Angelica s.l. taxa and their relationship within the Selineae tribe by conducting Maximum Likelihood (ML) and Bayesian Inference (BI) analyses based on the nuclear Internal Transcribed Spacer (ITS) and haplotype networks by Templeton Crandall and Sing and neighbour-net analyses based on the plastid trnL. Three separate Iberian species (A. angelicastrum, A. razulii and A. pyrenaea) form the new Iberian Angelica clade, which is sister to the Archangelica clade. Although morphologically different, A. pachycarpa cannot be differentiated from A. angelicastrum by molecular methods, casting new doubts on the existing taxonomies. Molecular evidences suggest that A. heterocarpa should be considered an estuary forma of A. sylvestris. The east and west A. sylvestris subclades support the subspecies A. sylvestris subsp. elatior and A. sylvestris subsp. villosa (including A. heterocarpa). Our evidences support the classification of A. palustris as Ostericum palustre." (source : auteurs) Type de publication : périodique Référence biblio : González-Toral C., EstandÃa A., Pérez M., Holloway T., Nava H., Fernández Prieto J., Cires E., 2024 - Redefining the phylogenetic relationships of European Angelica (Apiaceae) species. Plant Biosystems, 158 (1) : 155-181. ID PMB : 72145 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=72145
in Plant Biosystems > vol. 158, n°1 (Année 2024) . - pp. 155-181[article]Exemplaires(0)
Disponibilité aucun exemplaire Stellaria ruderalis, a new species in the Stellaria mediagroup from central Europe / Martin Lepsà in Preslia, vol. 91 (Année 2019)
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[article]
Titre : Stellaria ruderalis, a new species in the Stellaria mediagroup from central Europe Type de document : texte imprimé Auteurs : Martin Lepsà (LepÅ¡Ã, Martin), Auteur ; Petr Lepsà (LepÅ¡Ã, Petr), Auteur ; Petr Koutecky, Auteur ; Magdalena Lucanová (Lu%u010Danová, Magdalena), Auteur ; Eva Koutecká, Auteur ; Zdenek Kaplan, Auteur Année de publication : 2019 Article en page(s) : pp. 391-420 Langues : Anglais (eng) Catégories : [Espèces (in biblio)] Stellaria
[ZG] Europe centrale
[Thèmes] TaxonomieMots-clés : Stellaria ruderalis cytométrie Internal transcribed spacer (ITS) caryologie morphométrie multivariée Résumé : "A new allotetraploid species in the Stellaria media group, S. ruderalis M. LepÅ¡Ã, P. LepÅ¡Ã, Z. Kaplan & P. Koutecký, which is possibly of hybridogenous origin between S. pallida and S. neglecta, is distinguished and described based on a biosystematic revision of the S. media group. A suite of biosystematic techniques, including molecular (internal transcribed spacer sequencing), karyological (chromosome counting, flow cytometry), multivariate morphometrics and phenological observations, was used to assess the variation in this species group and determine the taxonomic status of the species. All the methods employed produced similar results and supported the delimitation of four species within the Stellaria media group in central Europe: Stellaria ruderalis (2n = 4x = 44), S. pallida (2n = 2x = 22), S. neglecta (2n = 2x = 22) and S. media s. str. (2n = 4x = 40). Stellaria ruderalis is a winter annual growing mainly in disturbed ruderal open or semi-open communities. This species’ broad ecological amplitude allows it to commonly co-occur with its three related species. It is probably a widespread species in southern and central Europe. It is currently spreading in the northern part of central Europe. Photographs of the type specimen and individuals of the new species in situ are presented. Scanning electron micrographs of seeds, microphotographs of seeds and mitotic chromosome spreads and a key for the identification of all four species are provided." (source : auteurs) Type de publication : périodique Référence biblio : Lepsà M., Lepsà P., Koutecky P., Lucanová M., Koutecká E., Kaplan Z., 2019 - Stellaria ruderalis, a new species in the Stellaria mediagroup from central Europe. Preslia, 91 : 391-420. ID PMB : 69010 DOI : 10.23855/preslia.2019.391 En ligne : http://www.preslia.cz/doi/preslia.2019.391.html Format de la ressource électronique : document Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69010
in Preslia > vol. 91 (Année 2019) . - pp. 391-420[article]Exemplaires(0)
Disponibilité aucun exemplaire