Elliptical Fourier descriptors of leaf outlines: a tool to discriminate among Aquilaria species (Thymelaeaceae)

Arlene Lopez-Sampson; Tony Page

doi:10.2478/sg-2018-0012

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Elliptical Fourier descriptors of leaf outlines: a tool to discriminate among Aquilaria species (Thymelaeaceae)

Journal article

Peer reviewed

Elliptical Fourier descriptors of leaf outlines: a tool to discriminate among Aquilaria species (Thymelaeaceae)

Arlene Lopez-Sampson and Tony Page

Silvae Genetica, Vol.67(1), pp.89-92

2018

DOI: https://doi.org/10.2478/sg-2018-0012

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Abstract

Genetics

Forestry Sciences

Agricultural Biotechnology

Leaf shape

SHAPE

species discrimination

vegetative characters

Leaf shape analysis of three Aquilaria species was undertaken using Elliptical Fourier descriptors (EFD) within a research planting in tropical Australia. This approach was taken to develop a method for discriminating the species in the absence of reproductive traits or genetic analysis and as a morphological scale of leaf variation. Leaf outlines were analysed to distinguish variability between species. Principal components analysis and canonical discriminant analysis were applied to group the species based on 25 Fourier descriptors. Four components were required to explain 78 % of the variance and the first and second canonical functions discriminated three groups of species therefore EFD was a useful approach for analysing leaf outline variability and distinguish species in the genus Aquilaria. This approach provides a rapid method that could assist in the species identification in Aquilaria where reproductive traits are absent.

Details

Title: Elliptical Fourier descriptors of leaf outlines: a tool to discriminate among Aquilaria species (Thymelaeaceae)
Authors: Arlene Lopez-Sampson (Author) - James Cook University
Tony Page (Author) - University of the Sunshine Coast - Faculty of Arts, Business and Law
Publication details: Silvae Genetica, Vol.67(1), pp.89-92
Publisher: Sciendo
Date published: 2018
DOI: 10.2478/sg-2018-0012
ISSN: 0037-5349
Organisation Unit: Australian Centre for Pacific Islands Research; Tropical Forests and People Research Centre; University of the Sunshine Coast, Queensland; Forest Industries Research Centre; Forest Research Institute; Sustainability Research Cluster
Language: English
Record Identifier: 99450797102621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Forestry; Genetics & Heredity

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