Reconstructing geographical parthenogenesis: effects of niche differentiation and reproductive mode on Holocene range expansion of an alpine plant.

Détails

Ressource 1Télécharger: Kirchheimer_et_al-2018-Ecology_Letters.pdf (2043.73 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_5320CAE7731F
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Lettre (letter): communication adressée à l'éditeur.
Collection
Publications
Titre
Reconstructing geographical parthenogenesis: effects of niche differentiation and reproductive mode on Holocene range expansion of an alpine plant.
Périodique
Ecology letters
Auteur(s)
Kirchheimer B., Wessely J., Gattringer A., Hülber K., Moser D., Schinkel CCF, Appelhans M., Klatt S., Caccianiga M., Dellinger A., Guisan A., Kuttner M., Lenoir J., Maiorano L., Nieto-Lugilde D., Plutzar C., Svenning J.C., Willner W., Hörandl E., Dullinger S.
ISSN
1461-0248 (Electronic)
ISSN-L
1461-023X
Statut éditorial
Publié
Date de publication
03/2018
Peer-reviewed
Oui
Volume
21
Numéro
3
Pages
392-401
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
Asexual taxa often have larger ranges than their sexual progenitors, particularly in areas affected by Pleistocene glaciations. The reasons given for this 'geographical parthenogenesis' are contentious, with expansion of the ecological niche or colonisation advantages of uniparental reproduction assumed most important in case of plants. Here, we parameterized a spread model for the alpine buttercup Ranunculus kuepferi and reconstructed the joint Holocene range expansion of its sexual and apomictic cytotype across the European Alps under different simulation settings. We found that, rather than niche broadening or a higher migration rate, a shift of the apomict's niche towards colder conditions per se was crucial as it facilitated overcoming of topographical barriers, a factor likely relevant for many alpine apomicts. More generally, our simulations suggest potentially strong interacting effects of niche differentiation and reproductive modes on range formation of related sexual and asexual taxa arising from their differential sensitivity to minority cytotype disadvantage.
Mots-clé
Altitude, Ecosystem, Geography, Parthenogenesis, Plants, Ranunculus, Ranunculus kuepferi, Apomictic plants, European Alps, geographical range, minority cytotype disadvantage, niche shift, polyploidization
Pubmed
Web of science
Open Access
Oui
Création de la notice
29/11/2017 15:54
Dernière modification de la notice
08/05/2019 18:40
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