[article]
| Titre : |
Molecular phylogenetics, seed morphometrics, chromosome number evolution and systematics of European Elatine L. (Elatinaceae) species |
| Type de document : |
texte imprimé |
| Auteurs : |
Gábor Sramkó, Auteur ; Attila Molnar, Auteur ; János Pál Tóth, Auteur ; Levente Laczkó, Auteur ; Anna Kalinka, Auteur ; Orsolya Horváth, Auteur ; Lidia Skuza, Auteur ; Balázs Andras Lukacs, Auteur ; Agnieska Popiela, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
e2800 |
| Langues : |
Anglais (eng) |
| Catégories : |
[Espèces (in biblio)] Elatinaceae
|
| Mots-clés : |
hybridation phylogénie évolution |
| Résumé : |
"The genus Elatine contains ca 25 species, all of which are small, herbaceous annuals distributed in ephemeral waters on both hemispheres. However, due to a high degree of morphological variability (as a consequence of their amphibious life-style), the taxonomy of this genus remains controversial. Thus, to fill this gap in knowledge, we present a detailed molecular phylogenetic study of this genus based on nuclear (rITS) and plastid (accD-psaI, psbJ-petA, ycf6-psbM-trnD) sequences using 27 samples from 13 species. On the basis of this phylogenetic analysis, we provide a solid phylogenetic background for the modern taxonomy of the European members of the genus. Traditionally accepted sections of this tree (i.e., Crypta and Elatinella) were found to be monophyletic; only E. borchoni—found to be a basal member of the genus—has to be excluded from the latter lineage to achieve monophyly. A number of taxonomic conclusions can also be drawn: E. hexandra, a high-ploid species, is most likely a stabilised hybrid between the main sections; E. campylosperma merits full species status based on both molecular and morphological evidence; E. gussonei is a more widespread and genetically diverse species with two main lineages; and the presence of the Asian E. ambigua in the European flora is questionable. The main lineages recovered in this analysis are also supported by a number of synapomorphic morphological characters as well as uniform chromosome counts. Based on all the evidence presented here, two new subsections within Elatinella are described: subsection Hydropipera consisting of the temperate species of the section, and subsection Macropodae including the Mediterranean species of the section." (source : auteurs) |
| Type de publication : |
périodique |
| Référence biblio : |
SRAMKÓ G., MOLNAR A., PÁL TÓTH J., LACZKÓ L., KALINKA A., HORVÁTH O., SKUZA L., ANDRAS LUKACS B., POPIELA A., 2016 - Molecular phylogenetics, seed morphometrics, chromosome number evolution and systematics of European Elatine L. (Elatinaceae) species. PeerJ, 4 : e2800 ; DOI 10.7717/peerj.2800 |
| ID PMB : |
65363 |
| DOI : |
10.7717/peerj.2800 |
| En ligne : |
https://peerj.com/articles/2800/ |
| Format de la ressource électronique : |
document |
| Permalink : |
http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=65363 |
in PeerJ > 4 (2016) . - e2800
[article]
|
Molecular phylogenetics, seed morphometrics, chromosome number evolution and systematics of European Elatine L. (Elatinaceae) species in PeerJ, 4 (2016)
