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Type: Journal article
Title: Regional population expansion in Eucalyptus globulus
Author: Yeoh, S.
Ho, S.
Thornhill, A.
Foley, W.
Citation: Molecular Phylogenetics and Evolution, 2013; 68(3):498-501
Publisher: Elsevier
Issue Date: 2013
ISSN: 1055-7903
Statement of
Suat Hui Yeoh, Simon Y.W. Ho, Andrew H. Thornhill, William J. Foley
Abstract: Foundation tree species define the structure of forest habitat and influence their ecosystem dynamics. However, there is limited understanding of both the patterns and timing of population fluctuations in foundation trees and how they vary among geographical regions. We have reconstructed the demographic history of five genetically distinct populations of the Tasmanian blue gum (Eucalyptus globulus ssp. globulus) at the species and regional levels, using three nuclear loci sequenced from 104 individuals. Analysis using a Bayesian skyline plot indicated that the species experienced two periods of expansion, commencing in the Pliocene. Regional analyses showed that island populations expanded earlier, but that the rate of expansion was relatively slow when compared to that of the mainland group. This highlights the need for local demographic history to be taken into account when inferring local adaptation for candidate genes. Population growth throughout the Quaternary signals the ability of the species to persist and thrive under the predominantly harsh conditions of this period.
Keywords: Bayesian skyline plot; demographic history; Eucalyptus globulus
Rights: © 2013 Elsevier Inc. All rights reserved.
DOI: 10.1016/j.ympev.2013.04.020
Grant ID: ARC
Appears in Collections:Aurora harvest 8
Ecology, Evolution and Landscape Science publications

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