Genetic Control of Heterochrony in Eucalyptus globulus

Corey J Hudson; Jules S Freeman; Rebecca C Jones; Brad M Potts; Melissa M L Wong; James L Weller; Valerie F G Hecht; R Scott Poethig; R E Vaillancourt

doi:10.1534/g3.114.011916

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Genetic Control of Heterochrony in Eucalyptus globulus

Journal article

Open access

Peer reviewed

Genetic Control of Heterochrony in Eucalyptus globulus

Corey J Hudson, Jules S Freeman, Rebecca C Jones, Brad M Potts, Melissa M L Wong, James L Weller, Valerie F G Hecht, R Scott Poethig and R E Vaillancourt

G3: Geochemistry, Geophysics, Geosystems, Vol.4(7), pp.1235-1245

2014

DOI: https://doi.org/10.1534/g3.114.011916

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Abstract

adaptation

eucalypts

heterochrony

MicroRNA

QTL

A change in the timing or rate of developmental events throughout ontogeny is referred to as heterochrony, and it is a major evolutionary process in plants and animals. We investigated the genetic basis for natural variation in the timing of vegetative phase change in the tree Eucalyptus globulus, which undergoes a dramatic change in vegetative morphology during the juvenile-to-adult transition. Quantitative trait loci analysis in an outcross F2 family derived from crosses between individuals from a coastal population of E. globulus with precocious vegetative phase change and individuals from populations in which vegetative phase change occurs several years later implicated the microRNA EglMIR156.5 as a potential contributor to this heterochronic difference. Additional evidence for the involvement of EglMIR156.5 was provided by its differential expression in trees with early and late phase change. Our findings suggest that changes in the expression of miR156 underlie natural variation in vegetative phase change in E. globulus, and may also explain interspecific differences in the timing of this developmental transition. © 2014 Hudson et al.

Details

Title: Genetic Control of Heterochrony in Eucalyptus globulus
Authors: Corey J Hudson (Author) - University of Tasmania
Jules S Freeman (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Rebecca C Jones (Author) - University of Tasmania
Brad M Potts (Author) - University of Tasmania
Melissa M L Wong (Author) - University of Saskatchewan, Canada
James L Weller (Author) - University of Tasmania
Valerie F G Hecht (Author) - University of Tasmania
R Scott Poethig (Author) - University of Tasmania
R E Vaillancourt (Author) - University of Tasmania
Publication details: G3: Geochemistry, Geophysics, Geosystems, Vol.4(7), pp.1235-1245
Publisher: Wiley-Blackwell Publishing Inc.
Date published: 2014
DOI: 10.1534/g3.114.011916
ISSN: 1525-2027
Copyright note: Copyright © 2014 Hudson et al. This is an open-access article distributed under the terms of the Creative Commons Attribution Unported License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99448814602621
Output Type: Journal article

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