A partir de cette page vous pouvez :
| Retourner au premier écran avec les dernières notices... |
Résultat de la recherche
2 résultat(s) recherche sur le mot-clé 'identification moléculaire' 
trié(s) par (Pertinence décroissant(e), Titre croissant(e)) Affiner la recherche Générer le flux rss de la rechercheSchoenoplectus × flevensis (S. lacustris × S. tabernaemontani, Cyperaceae) in Britain / Richard Lansdown in British & Irish Botany, vol. 2, n°3 (Année 2020)
Titre : Schoenoplectus × flevensis (S. lacustris × S. tabernaemontani, Cyperaceae) in Britain Type de document : Livre Auteurs : Richard Lansdown, Auteur ; Fred Rumsey, Auteur Année de publication : 2020 Article en page(s) : pp. 190-201 Langues : Anglais Catégories : [Espèces (in biblio)] Schoenoplectus
[Espèces (in biblio)] Schoenoplectus lacustris
[Espèces (in biblio)] Schoenoplectus tabernaemontaniMots-clés : Schoenoplectus × flevensis hybride identification moléculaire Résumé : "Intermediates between Schoenoplectus lacustris and S. tabernaemontani have been recognised at least since the late 19th century and for much of that time, there has been speculation that such intermediates may involve hybridisation. In 2017 the hybrid status of a population growing in the South-Forty-foot Drain in Lincolnshire was confirmed using molecular tools. This article presents information on the hybrid, both from the Lincolnshire population and from the literature, as well as providing an indication of how hybrid populations might be recognised. The binomial Schoenoplectus × flevensis (D.Bakker) Lansdown & Rumsey is proposed for the hybrid." (source : auteurs) Type de publication : périodique Référence biblio : Lansdown R., Rumsey F., 2020 - Schoenoplectus × flevensis (S. lacustris × S. tabernaemontani, Cyperaceae) in Britain. British & Irish Botany, 2 : 190-201. ID PMB : 69691 En ligne : https://britishandirishbotany.org/index.php/bib/article/view/49 Format de la ressource électronique : document Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69691
in British & Irish Botany > vol. 2, n°3 (Année 2020) . - pp. 190-201[article]Exemplaires
Cote Localisation Disponibilité aucun exemplaire
Titre : Hybridization in Batrachium group : Controversial delimitation between heterophyllous Ranunculus penicillatus and the hybrid Ranunculus fluitans × R. peltatus Type de document : Livre Auteurs : Joanna Zalewska-Galosz, Auteur ; Magdalena Jopek, Auteur ; Tomasz Ilnicki, Auteur Année de publication : 2015 Article en page(s) : pp. 160-168 Langues : Anglais Catégories : [Espèces (in biblio)] Batrachium
[Espèces (in biblio)] Ranunculus
[Thèmes] Plante aquatique
[Thèmes] TaxonomieMots-clés : hybridation identification moléculaire Résumé : "Members of Ranunculus sect. Batrachium are widely distributed and one of the most difficult groups of aquatic plants to identify. Novel DNA-based studies provide an opportunity to elucidate the main evolutionary processes shaping variation in this group and serve as a starting point for further, consistent taxonomic studies of the section. One issue which needs clarification is the role of hybridization in speciation within Ranunculus sect. Batrachium. In this paper we test the molecular character of heterophyllous Ranunculus penicillatus occurring in a few localities in Poland, based on nuclear and plastid DNA sequence data. We found that ITS sequences obtained from this tetraploid taxon displayed a clearly additive pattern between ITS sequences of Ranunculus fluitans and Ranunculus peltatus demonstrating its hybrid origin. The presence of both parental types of matK sequences, even within the same population, shows the multiple origins of the populations studied and suggests that hybridization between R. fluitans and R. peltatus is not rare. In the light of our results we discuss the taxonomic relationships between heterophyllous R. penicillatus and the hybrid R. fluitans × R. peltatus. In addition, based on molecular analysis of 44 individuals of Ranunculus sect. Batrachium representing different morphotypes and originating from different areas, we discuss the resultant genetic groups in the relation to traditionally recognized taxa." (source : auteurs) Type de publication : périodique Référence biblio : Zalewska-Galosz J., Jopek M., Ilnicki T., 2015 - Hybridization in Batrachium group : Controversial delimitation between heterophyllous Ranunculus penicillatus and the hybrid Ranunculus fluitans × R. peltatus. Aquatic Botany, 120 (B) : 160-168. Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=67497
in Aquatic Botany > Volume 120, Part B (Année 2015) . - pp. 160-168[article]Exemplaires
Cote Localisation Disponibilité aucun exemplaire
