Independent lines of evidence of a genetic relationship between acoustic wave velocity and kraft pulp yield in Eucalyptus globulus

Matthew G Hamilton; Jules S Freeman; David P Blackburn; Geoffrey M Downes; David J Pilbeam; Brad M Potts

doi:10.1007/s13595-017-0617-2

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Independent lines of evidence of a genetic relationship between acoustic wave velocity and kraft pulp yield in Eucalyptus globulus

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Independent lines of evidence of a genetic relationship between acoustic wave velocity and kraft pulp yield in Eucalyptus globulus

Matthew G Hamilton, Jules S Freeman, David P Blackburn, Geoffrey M Downes, David J Pilbeam and Brad M Potts

Annals of Forest Science, Vol.74(1), 17

2017

DOI: https://doi.org/10.1007/s13595-017-0617-2

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Abstract

genetic correlation

quantitative trait loci (QTL)

wood property

heritability

dominance

Key message: Multiple lines of evidence suggest acoustic wave velocity (AWV) would provide a rapid and efficient method to indirectly select for superior pulp yield inEucalyptus globulusbreeding programs. Context: Eucalyptus globulus is one of the most widely planted hardwood species in temperate regions of the world and is primarily grown for pulpwood. Aims: To determine if acoustic wave velocity (AWV) can be used to indirectly select for kraft pulp yield in E. globulus. Methods: Genetic group effects, additive and non-additive variance components, and genetic correlations were estimated for AWV and pulpwood traits, including Kraft pulp yield. In a separate trial, the relative position of quantitative trait loci (QTL) for these traits was compared. Results: Estimated narrow-sense heritabilities for AWV and pulp yield were both 0.26, and these traits were strongly genetically correlated (0.84). Furthermore, co-located QTL for these traits were identified. Further evidence that AWV could be used to indirectly select for pulp yield was provided by the ranking of genetic groups-Otways and King Island had the highest AWV and pulp yield and Strzelecki and Tasmania the lowest. There was no evidence of dominance variation in wood property traits. Conclusion: Together, these findings suggest that AWV could be used as a selection criterion for kraft pulp yield in E. globulus breeding programs.

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Title: Independent lines of evidence of a genetic relationship between acoustic wave velocity and kraft pulp yield in Eucalyptus globulus
Authors: Matthew G Hamilton (Author) - University of Tasmania
Jules S Freeman (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
David P Blackburn (Author) - University of Tasmania
Geoffrey M Downes (Author) - Forest Quality Pty Ltd
David J Pilbeam (Author) - Southern Tree Breeding Association Inc
Brad M Potts (Author) - University of Tasmania
Publication details: Annals of Forest Science, Vol.74(1), 17; 10
Publisher: Springer-Verlag France
Date published: 2017
DOI: 10.1007/s13595-017-0617-2
ISSN: 1286-4560
Organisation Unit: University of the Sunshine Coast, Queensland; Forest Industries Research Centre
Language: English
Record Identifier: 99450358102621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Forestry