Reconstructing geographical parthenogenesis: effects of niche differentiation and reproductive mode on Holocene range expansion of an alpine plant.
Fiche du document
- doi: 10.1111/ele.12908
- issn: 1461-023X
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/doi/10.1111/ele.12908
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/pmid/29349850
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/eissn/1461-0248
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/urn/urn:nbn:ch:serval-BIB_5320CAE7731F2
info:eu-repo/semantics/openAccess , Copying allowed only for non-profit organizations , https://serval.unil.ch/disclaimer
Sujets proches
Vegetable kingdom Plantae Plant kingdom Vegetation Wildlife Flora ParthogenesisCiter ce document
B. Kirchheimer et al., « Reconstructing geographical parthenogenesis: effects of niche differentiation and reproductive mode on Holocene range expansion of an alpine plant. », Serveur académique Lausannois, ID : 10.1111/ele.12908
Métriques
Partage / Export
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.