[article] | Titre : | Niche differentiation between Malus sylvestris and its hybrid with Malus domestica indicated by plant community, soil and light | | Type de document : | Livre | | Auteurs : | Lisa Ahl, Auteur ; Gregor Aas, Auteur ; Helge Walentowski, Auteur ; Aki Michael Höltken, Auteur ; Martin Feulner, Auteur | | Année de publication : | 2021 | | Article en page(s) : | e13078 | | Langues : | Anglais | | Catégories : | [Espèces (in biblio)] Malus domestica
[Espèces (in biblio)] Malus sylvestris
| | Mots-clés : | hybride comparaison d'espèces | | Résumé : | "Malus sylvestris is considered an endangered tree species in Central Europe. Hybridization with Malus domestica poses a serious threat to the genetic integrity of the wild species. Here we investigate whether M. sylvestris and the hybrid M. domestica × sylvestris occur in the same habitat or have different ecological niches and whether M. sylvestris is threatened by displacement by the hybrid.
Genetic markers identified 22 M. sylvestris and 11 hybrid specimens, meaning that in the study area the wild taxon is much more frequent than the hybrid. Ecological site differences between M. sylvestris and its hybrid with M. domestica were best explained by light availability, pH and mean Ellenberg moisture value. In contrast to the ecological demands of the hybrid, Malus sylvestris tolerated wet soil and flooding and even somewhat shadier conditions in the later successional stages. DCA revealed that differences in the composition of the plant communities in which the taxa were found were primarily driven by soil moisture.
Our data suggested different ecological niches, which are appropriate to reduce the risk of replacement of M. sylvestris by the hybrid M. domestica × sylvestris. Hence, these findings provide important implications for a more targeted planning of in-situ conservation strategies of M. sylvestris genomes with low levels of admixture and help to protect plant communities suitable for the threatened wild apple." (source : auteurs) | | Type de publication : | périodique | | Référence biblio : | Ahl L., Aas G., Walentowski H., Höltken A., Feulner M., 2021 - Niche differentiation between Malus sylvestris and its hybrid with Malus domestica indicated by plant community, soil and light. Journal of Vegetation Science, 32 (5) : e13078. | | ID PMB : | 70932 | | En ligne : | https://onlinelibrary.wiley.com/doi/full/10.1111/jvs.13078?campaign=woletoc | | Format de la ressource électronique : | document | | Permalink : | http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=70932 |
in Journal of Vegetation Science > vol. 32, n°5 (Année 2021) . - e13078
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