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Related Experiment Video

Updated: May 11, 2026

The Use of Induced Somatic Sector Analysis (ISSA) for Studying Genes and Promoters Involved in Wood Formation and Secondary Stem Development

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Published on: October 5, 2016

Regional population expansion in Eucalyptus globulus.

Suat Hui Yeoh¹, Simon Y W Ho, Andrew H Thornhill

¹Evolution, Ecology and Genetics, Research School of Biology, The Australian National University, Canberra, ACT 0200, Australia. suathui_yeoh@um.edu.my

Molecular Phylogenetics and Evolution

|May 7, 2013

Summary

This summary is machine-generated.

Foundation tree species like Tasmanian blue gum experienced significant population expansions starting in the Pliocene. Regional differences in expansion timing and rates were observed, highlighting the importance of local demographic history.

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Area of Science:

Ecology
Evolutionary Biology
Genetics

Background:

Foundation tree species are crucial for forest structure and ecosystem dynamics.
Understanding population fluctuations and their geographical variations in these key species is limited.

Purpose of the Study:

To reconstruct the demographic history of Eucalyptus globulus ssp. globulus at species and regional levels.
To investigate the timing and patterns of population fluctuations in foundation tree species.

Main Methods:

Sequencing of three nuclear loci from 104 individuals across five genetically distinct populations.
Analysis of demographic history using Bayesian skyline plots.

Main Results:

Eucalyptus globulus ssp. globulus experienced two major expansion periods, beginning in the Pliocene.
Island populations initiated expansion earlier than mainland populations, but at a slower rate.
Quaternary population growth indicates resilience to harsh environmental conditions.

Conclusions:

Local demographic history is essential for accurate inference of local adaptation in candidate genes.
The species demonstrates a capacity for persistence and growth through the Quaternary period.