Résultat de la recherche
2 recherche sur le mot-clé
'flow cytometry' 




Morphological and cytological variation in Spergularia echinosperma and S. rubra, and notes on potential hybridization of these two species / Pavel Kur in Preslia, vol. 84 (Année 2012)
[article]
Titre : Morphological and cytological variation in Spergularia echinosperma and S. rubra, and notes on potential hybridization of these two species Auteurs : Pavel Kur, Auteur ; Milan Stech, Auteur ; Petr Koutecky, Auteur ; Pavel Travnicek, Auteur Année de publication : 2012 Article en page(s) : pp. 905-924 Langues : Anglais (eng) Catégories : [ZG] République tchèque Use for events after 1992.
[Espèces (in biblio)] Spergularia echinosperma
[Espèces (in biblio)] Spergularia echinosperma (Celak.) Asch. & Graebn.
[Espèces (in biblio)] Spergularia rubra (L.) J.Presl & C.PreslMots-clés : allopolyploïdie classification analyse discriminante linéaire (ADL) flow cytometry genome size inter-ploidy hybridization morphometric analysis cytologie Résumé : "Morphological and cytological variation in Spergularia echinosperma and S. rubra and the possibility of these two species hybridizing were investigated. The plant material was collected mainly in the western- and southern-Bohemian pond basins where S. echinosperma is most abundant. Using flow cytometry, we found diploid and tetraploid cytotypes among plants morphologically identified as Type de publication : périodique Référence biblio : Kur P., Stech M., Koutecky P., Travnicek P., 2012 - Morphological and cytological variation in Spergularia echinosperma and S. rubra, and notes on potential hybridization of these two species. Preslia, 84 : 905-924. ID PMB : 55658 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=55658
in Preslia > vol. 84 (Année 2012) . - pp. 905-924[article]Exemplaires(0)
Disponibilité aucun exemplaire Ophrys fusca and Ophrys dyris (Orchidaceae) – constancy of tetraploidy amongst populations in Central Portugal / Joana Abreu in New Journal of botany, vol. 7, n°2-3 (Année 2017)
[article]
Titre : Ophrys fusca and Ophrys dyris (Orchidaceae) – constancy of tetraploidy amongst populations in Central Portugal Type de document : texte imprimé Auteurs : Joana Abreu, Auteur ; Julie A. Hawkins, Auteur ; Helena Cotrim, Auteur ; Michael F. Fay, Auteur ; Oriane Hidalgo, Auteur ; Jaume Pellicer, Auteur Année de publication : 2018 Article en page(s) : pp. 94-100 Langues : Anglais (eng) Mots-clés : flow cytometry  chromosome numbers  cytotype  genome size  polyploidy Résumé : "Ophrys is amongst the best known orchid genera and is an established system for the study of pollinator-mediated floral evolution. Two species, Ophrys fusca s.l. and Ophrys dyris (= O. omegaifera subsp. dyris) belonging to Ophrys section Pseudophrys are the focus of this study. In the context of an integrative study of morphological and genetic diversity of O. fusca and O. dyris, genome size (GS) and cytotype diversity were surveyed from Portuguese populations. Flow cytometry methods were used to assess GS, and subsequently determine the ploidy level of 67 specimens, including the species and putative hybrids. Cytotypes were also confirmed based on chromosome counts from the roots of two specimens, one of each species. Constancy of nuclear DNA content (1C = 11.19 pg) and ploidy level (2n = 4x = 72, 74) was documented among all the individuals analysed. Implications are considered, in terms of interpreting the origin and predicting the persistence of putative hybrids." Type de publication : périodique Référence biblio : Abreu J., Hawkins J., Cotrim H., Fay M., Hidalgo O., Pellicer J., 2018 - Ophrys fusca and Ophrys dyris (Orchidaceae) – constancy of tetraploidy amongst populations in Central Portugal. New Journal of botany, 7 : 94-100. DOI : 10.1080/20423489.2017.1408185 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=66864
in New Journal of botany > vol. 7, n°2-3 (Année 2017) . - pp. 94-100[article]Exemplaires(1)
Cote Localisation Disponibilité P0130-5 Brest Exclu du prêt