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

Citation

Hamilton, MG and Freeman, JS and Blackburn, DP and Downes, GM and Pilbeam, DJ and Potts, BM, Independent lines of evidence of a genetic relationship between acoustic wave velocity and kraft pulp yield in Eucalyptus globulus, Annals of Forest Science, 74 Article 17. ISSN 1286-4560 (2017) [Refereed Article]


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Copyright Statement

Copyright 2017 INRA and Springer-Verlag France

DOI: doi:10.1007/s13595-017-0617-2

Abstract

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 in Eucalyptus globulus breeding 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.

Item Details

Item Type:Refereed Article
Keywords:genetics, acoustic, kraft pulp, eucalyptus globulus, breeding, heritability
Research Division:Agricultural and Veterinary Sciences
Research Group:Forestry Sciences
Research Field:Tree Improvement (Selection and Breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Hardwood Plantations
Author:Hamilton, MG (Dr Matthew Hamilton)
Author:Freeman, JS (Dr Jules Freeman)
Author:Blackburn, DP (Dr David Blackburn)
Author:Potts, BM (Professor Brad Potts)
ID Code:114599
Year Published:2017
Deposited By:Plant Science
Deposited On:2017-02-21
Last Modified:2017-12-08
Downloads:0

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