[article]
| Titre : |
Variation of Potentilla sect. Potentilla (Rosaceae) in Estonia and neighbouring countries |
| Type de document : |
texte imprimé |
| Auteurs : |
Malle Leht, Auteur ; Jaanus Paal, Auteur |
| Année de publication : |
2004 |
| Article en page(s) : |
pp. 53-61 |
| Langues : |
Anglais (eng) |
| Catégories : |
[Espèces (in biblio)] Potentilla
[Espèces (in biblio)] Potentilla anglica
[Espèces (in biblio)] Potentilla erecta
[Espèces (in biblio)] Potentilla reptans
[Espèces (in biblio)] Potentilla x italica
[Thèmes] Taxonomie
|
| Mots-clés : |
plante hybride génome zoologie chromosome génétique hybridation |
| Résumé : |
"One-hundred and eighty specimens of Potentilla erecta, 58 of P. reptans, 49 of P. anglica and 19 of P.¥ italica were studied phenetically using 19 macromorphological characters. As P. erecta and P. reptans are quite common in Estonia, while P. anglica is absent from that country, the occurrence of P. ¥italica in Estonia points to its possible origin from hybridization of the former two species. Estonian P. ¥italica produces no seeds and is hexaploid (2n = 42). Potentilla ¥italica and P. anglica appeared, from the statistical point of view, morphologically well separable from each other as well as from their putative parents. In comparison with the varieties of P. erecta, var. erecta and var. strictissima, which do not cluster into separate groups, it is reasonable to treat P.¥ italica, which clearly forms clusters of its own,on the same level as P. reptans and P. anglica, i.e., to recognize it as a morphologically stable nothospecies." (source : auteurs) |
| Type de publication : |
périodique |
| Référence biblio : |
Leht M., Paal J., 2004 - Variation of Potentilla sect. Potentilla (Rosaceae) in Estonia and neighbouring countries. Annales Botanici Fennici, 41 (1) : 53-61. |
| ID PMB : |
69220 |
| En ligne : |
http://www.sekj.org/PDF/anbf41/anbf41-053.pdf |
| Format de la ressource électronique : |
document |
| Permalink : |
http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69220 |
in Annales Botanici Fennici > vol. 41, n°1 (Année 2004) . - pp. 53-61
[article]
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trié(s) par (Pertinence décroissant(e), Titre croissant(e)) Affiner la rechercheTourbière de Vauville, La Grande Vallé (commune de Vauville - 50) : note d'expertise (2003)
Variation of Potentilla sect. Potentilla (Rosaceae) in Estonia and neighbouring countries in Annales Botanici Fennici, vol. 41, n°1 (Année 2004)
