| Titre : |
Hybridisation and introgression in British Helosciadium (Apiaceae) |
| Type de document : |
texte imprimé |
| Auteurs : |
Stuart Desjardins, Auteur ; Andrew Shaw, Auteur ; Judith Webb, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
pp. 27-42 |
| Langues : |
Anglais (eng) |
| Catégories : |
[Espèces (in biblio)] Apium
[Espèces (in biblio)] Helosciadium nodiflorum
[Espèces (in biblio)] Helosciadium repens
|
| Mots-clés : |
DNA barcoding systématique moléculaire réticulation |
| Résumé : |
"Reticulation between Helosciadium repens (Jacq.) W.D.J. Koch and H. nodiflorum (L.) W.D.J. Koch (Apiaceae) has been the source of much speculation, but until now supporting evidence has remained largely anecdotal. In the current study inter-specific hybridisation and introgression between the two species was confirmed using DNA barcoding. The parentage of three putative hybrids collected from Port Meadow, Oxfordshire (UK) was determined using a maternally-inherited chloroplast marker (rps16-trnK) and two biparentally-inherited nuclear markers (LEAFYi2, ITS). Two of the individuals are early-generation hybrids between H. repens and H. nodiflorum, F1 or otherwise, while the third is most likely a backcross to H. repens. These individuals are the first confirmed hybrids/hybrid derivatives between the two parental species, and represent a new addition to the British flora. The hybrids closely resemble H. nodiflorum var. longipedunculatum F.W. Schultz, and in our view should be treated as H. × longipedunculatum (F.W. Schultz) Desjardins." (source : auteur) |
| Type de publication : |
périodique |
| Référence biblio : |
Desjardins S., Shaw A., Webb J., 2020 - Hybridisation and introgression in British Helosciadium (Apiaceae). British & Irish Botany, 2 (1) : 27-42. |
| ID PMB : |
69689 |
| DOI : |
10.33928/bib.2020.02.027 |
| En ligne : |
https://britishandirishbotany.org/index.php/bib/article/view/40 |
| Format de la ressource électronique : |
document |
| Permalink : |
http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69689 |
in British & Irish Botany > vol. 2, n°1 (Année 2020) . - pp. 27-42
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