Identifying hybridisation in Pinus species using near infrared spectroscopy of foliage

Roger Meder; D Kain; N Ebdon; Paul MacDonell; Jeremy T Brawner

doi:10.1255/jnirs.1127

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Identifying hybridisation in Pinus species using near infrared spectroscopy of foliage

Journal article

Peer reviewed

Identifying hybridisation in Pinus species using near infrared spectroscopy of foliage

Roger Meder, D Kain, N Ebdon, Paul MacDonell and Jeremy T Brawner

Journal of Near Infrared Spectroscopy, Vol.22(5), pp.337-345

2014

DOI: https://doi.org/10.1255/jnirs.1127

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Abstract

NIR spectroscopy

PLS discriminant analysis

SIMCA

Pinus Elliotti

Pinus caribaea

Pinus radiata

Near infrared (NIR) spectra from foliage of the tropical pine species Pinus caribaea var. hondurensis, P. elliottii var. elliottii and their hybrids have been used to classify the extent of hybridisation for the F1 and backcross progeny. Comparison of results for F1 hybrids with simulated hybrids, made from admixtures of pure parent foliage samples, showed increased variation in the NIR spectra of the F1 hybrids as evidenced by greater scatter in the principal component analysis scores plot. Both partial least-squares-discriminant analysis and soft independent modelling of class analogy using the foliage spectra provide identification of the hybrid individuals from the parent taxa. In addition, it is possible to visualise the extent of genetic additive effect in hybrid-parent backcrosses. NIR spectra from foliage samples of P. radiata, a temperate pine species, were clearly discriminated from P. elliottii and P. caribaea. Near infrared spectroscopy has the potential to confirm and assess the extent of hybridisation in softwood species. In extreme situations whereby trial records are lost or trial plot labelling is missing, it might be possible to use NIR spectra from foliage to recover taxon information of seedlings.

Details

Title: Identifying hybridisation in Pinus species using near infrared spectroscopy of foliage
Authors: Roger Meder (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
D Kain (Author) - HQPlantations Pty Ltd, Australia
N Ebdon (Author) - CSIRO Materials Science and Engineering
Paul MacDonell (Author) - University of the Sunshine Coast
Jeremy T Brawner (Author) - University of the Sunshine Coast
Publication details: Journal of Near Infrared Spectroscopy, Vol.22(5), pp.337-345
Publisher: N I R Publications
Date published: 2014
DOI: 10.1255/jnirs.1127
ISSN: 0967-0335
Organisation Unit: Tropical Forests and People Research Centre; University of the Sunshine Coast, Queensland; Forest Industries Research Centre; Forest Research Institute
Language: English
Record Identifier: 99449472802621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Chemistry, Applied; Spectroscopy