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Genetic control of heterochrony in Eucalyptus globulus
Citation
Hudson, CJ and Freeman, JS and Jones, RC and Potts, BM and Wong, MML and Weller, JL and Hecht, VFG and Poethig, RS and Vaillancourt, RE, Genetic control of heterochrony in Eucalyptus globulus, G3: Genes, Genomes, Genetics, 4, (7) pp. 1235-1245. ISSN 2160-1836 (2014) [Refereed Article]
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Copyright Statement
Copyright 2014 Hudson et al. Licenced under Creative Commons Attribution 3.0 Unported (CC BY 3.0) http://creativecommons.org/licenses/by/3.0/
DOI: doi:10.1534/g3.114.011916
Abstract
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.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | QTL, microRNA, eucalypts, heterochrony, adaptation |
| Research Division: | Biological Sciences |
| Research Group: | Genetics |
| Research Field: | Gene mapping |
| Objective Division: | Plant Production and Plant Primary Products |
| Objective Group: | Forestry |
| Objective Field: | Native forests |
| UTAS Author: | Hudson, CJ (Dr Corey Hudson) |
| UTAS Author: | Freeman, JS (Dr Jules Freeman) |
| UTAS Author: | Jones, RC (Dr Rebecca Jones) |
| UTAS Author: | Potts, BM (Professor Brad Potts) |
| UTAS Author: | Weller, JL (Associate Professor Jim Weller) |
| UTAS Author: | Hecht, VFG (Dr Valerie Hecht) |
| UTAS Author: | Vaillancourt, RE (Professor Rene Vaillancourt) |
| ID Code: | 96035 |
| Year Published: | 2014 |
| Web of Science® Times Cited: | 27 |
| Deposited By: | Plant Science |
| Deposited On: | 2014-10-16 |
| Last Modified: | 2017-11-03 |
| Downloads: | 399 View Download Statistics |
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