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Testing the boundaries of closely related daisy taxa using metabolomic profiling

Messina,A, Callahan,DL, Walsh,NG, Hoebee,SE and Green,PT 2014, Testing the boundaries of closely related daisy taxa using metabolomic profiling, Taxon, vol. 63, no. 2, pp. 367-376, doi: 10.12705/632.15.

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Title Testing the boundaries of closely related daisy taxa using metabolomic profiling
Author(s) Messina,A
Callahan,DLORCID iD for Callahan,DL orcid.org/0000-0002-6384-8717
Walsh,NG
Hoebee,SE
Green,PT
Journal name Taxon
Volume number 63
Issue number 2
Start page 367
End page 376
Total pages 10
Publisher International Association for Plant Taxonomy
Place of publication Utrecht, The Netherlands
Publication date 2014-04
ISSN 0040-0262
Summary Advances in high-throughput, comprehensive small molecule analytical techniques have seen the development of the field of metabolomics. The coupling of mass spectrometry with high-resolution chromatography provides extensive chemical profiles from complex biological extracts. These profiles include thousands of compounds linked to gene expression, and can be used as taxonomic characters. Studies have shown metabolite profiles to be taxon specific in a range of organisms, but few have investigated taxonomically problematic plant taxa. This study used a phenetic analysis of metabolite profiles to test taxonomic boundaries in the Olearia phlogopappa (Asteraceae) complex as delimited by morphological data. Metabolite profiles were generated from both field- and shade house-grown material, using liquid chromatography-mass spectrometry (LC-MS). Aligned profiles of 51 samples from 12 taxa gave a final dataset of over 10,000 features. Multivariate analyses of field and shade house material gave congruent results, both confirming the distinctiveness of the morphologically defined species and subspecies in this complex. Metabolomics has great potential in alpha taxonomy, especially for testing the boundaries of closely related taxa where DNA sequence data has been uninformative.
Language eng
DOI 10.12705/632.15
Field of Research 059999 Environmental Sciences not elsewhere classified
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, International Association for Plant Taxonomy
Persistent URL http://hdl.handle.net/10536/DRO/DU:30072790

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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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.