Population structure of a widespread species under balancing selection

• Verfasst von: Santiso, Xabier [VerfasserIn]
• Verfasst von: Lopez, Lua [VerfasserIn]
• Verfasst von: Retuerto, Rubén [VerfasserIn]
• Verfasst von: Barreiro, Rodolfo [VerfasserIn]
• Titel: Population structure of a widespread species under balancing selection
• Titelzusatz: the case of Arbutus unedo L.
• Verf.angabe: Xabier Santiso, Lua Lopez, Rubén Retuerto and Rodolfo Barreiro
• E-Jahr: 2016
• Jahr: 13 January2016
• Fussnoten: Gesehen am 08.05.2020
• Titel Quelle: Enthalten in: Frontiers in plant science
• Ort Quelle: Lausanne : Frontiers Media, 2010
• Jahr Quelle: 2016
• Band/Heft Quelle: 6(2016) Artikel-Nummer 1264, 12 Seiten
• ISSN Quelle: 1664-462X
• DOI: doi:10.3389/fpls.2015.01264
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: AFLP
• Sach-SW: Arbutus unedo
• Sach-SW: Atlantic-Mediterranean split
• Sach-SW: Disjunct distribution
• Sach-SW: genetic diversity
• Sach-SW: Genetic structure
• Sach-SW: stabilizing selection.
• K10plus-PPN: 1697753418

Abstract

Arbutus unedo L. is an evergreen shrub with a circum-Mediterranean distribution that also reaches the Eurosiberian region in northern Iberia, Atlantic France, and a disjunct population in southern Ireland. Due to the variety of climatic conditions across its distribution range, the populations of A. unedo were expected to display local adaptation. Conversely, common garden experiments revealed that diverse genotypes from a range of provenances produce similar phenotypes through adaptive plasticity, suggesting the action of stabilizing selection across its climatically heterogeneous range. Nonetheless, since an uniform response might also result from extensive gene flow, we have inferred the population structure of A. unedo and assessed whether its extended and largely one-dimensional range influences gene flow with the help of AFLP genotypes for 491 individuals from 19 populations covering the whole range of the species.