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The yield of essential oils in Melaleuca alternifolia (Myrtaceae) is regulated through transcript abundance of genes in the MEP pathway

Webb, Hamish, Lanfear, Robert, Hamill, John, Foley, William J. and Kulheim, Carsten 2013, The yield of essential oils in Melaleuca alternifolia (Myrtaceae) is regulated through transcript abundance of genes in the MEP pathway, PLoS one, vol. 8, no. 3, pp. 1-9, doi: 10.1371/journal.pone.0060631.

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Title The yield of essential oils in Melaleuca alternifolia (Myrtaceae) is regulated through transcript abundance of genes in the MEP pathway
Formatted title The yield of essential oils in Melaleuca alternifolia (Myrtaceae) is regulated through transcript abundance of genes in the MEP pathway
Author(s) Webb, Hamish
Lanfear, Robert
Hamill, John
Foley, William J.
Kulheim, Carsten
Journal name PLoS one
Volume number 8
Issue number 3
Article ID e60631
Start page 1
End page 9
Total pages 9
Publisher Public Library of Science
Place of publication San Francisco, Calif.
Publication date 2013
ISSN 1932-6203
Summary Medicinal tea tree (Melaleuca alternifolia) leaves contain large amounts of an essential oil, dominated by monoterpenes. Several enzymes of the chloroplastic methylerythritol phosphate (MEP) pathway are hypothesised to act as bottlenecks to the production of monoterpenes. We investigated, whether transcript abundance of genes encoding for enzymes of the MEP pathway were correlated with foliar terpenes in M. alternifolia using a population of 48 individuals that ranged in their oil concentration from 39 -122 mg x g DM(-1). Our study shows that most genes in the MEP pathway are co-regulated and that the expression of multiple genes within the MEP pathway is correlated with oil yield. Using multiple regression analysis, variation in expression of MEP pathway genes explained 87% of variation in foliar monoterpene concentrations. The data also suggest that sesquiterpenes in M. alternifolia are synthesised, at least in part, from isopentenyl pyrophosphate originating from the plastid via the MEP pathway.
Language eng
DOI 10.1371/journal.pone.0060631
Field of Research 049999 Earth Sciences not elsewhere classified
Socio Economic Objective 970104 Expanding Knowledge in the Earth Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2013, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30064365

Document type: Journal Article
Collections: Office of the Deputy Vice-Chancellor Research
Open Access Collection
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.