Age trends of microfibril angle inheritance and their genetic and environmental correlations with growth, density and chemical properties in Eucalyptus urophylla ST Blake wood
HEIN, Paulo Ricardo Gherardi
Universidade Federal de Lavras = Federal University of Lavras [UFLA]
Centre de Coopération Internationale en Recherche Agronomique pour le Développement [Cirad]
Mécanique de l'Arbre et du Bois [MAB]
Universidade Federal de Lavras = Federal University of Lavras [UFLA]
Centre de Coopération Internationale en Recherche Agronomique pour le Développement [Cirad]
Mécanique de l'Arbre et du Bois [MAB]
BOUVET, Jean-Marc
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
MANDROU, Eric
Biodiversité, Gènes & Communautés [BioGeCo]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
CEVA Santé Animale [Libourne, France] [Laboratoire Vétérinaire Pharmaceutique]
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Biodiversité, Gènes & Communautés [BioGeCo]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
CEVA Santé Animale [Libourne, France] [Laboratoire Vétérinaire Pharmaceutique]
HEIN, Paulo Ricardo Gherardi
Universidade Federal de Lavras = Federal University of Lavras [UFLA]
Centre de Coopération Internationale en Recherche Agronomique pour le Développement [Cirad]
Mécanique de l'Arbre et du Bois [MAB]
Universidade Federal de Lavras = Federal University of Lavras [UFLA]
Centre de Coopération Internationale en Recherche Agronomique pour le Développement [Cirad]
Mécanique de l'Arbre et du Bois [MAB]
BOUVET, Jean-Marc
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
MANDROU, Eric
Biodiversité, Gènes & Communautés [BioGeCo]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
CEVA Santé Animale [Libourne, France] [Laboratoire Vétérinaire Pharmaceutique]
Biodiversité, Gènes & Communautés [BioGeCo]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
CEVA Santé Animale [Libourne, France] [Laboratoire Vétérinaire Pharmaceutique]
VIGNERON, Philippe
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
Centre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles [CRDPI]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
Centre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles [CRDPI]
CHAIX, Gilles
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
< Reduce
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
Language
en
Article de revue
This item was published in
Annals of Forest Science. 2012, vol. 69, n° 6, p. 681 - 691
Springer Nature (since 2011)/EDP Science (until 2010)
English Abstract
The genetic and environmental control of microfibril angle (MFA) and its genetic correlations with other wood and growth traits are still not well established in Eucalyptus sp. To determine the narrow-sense heritability ...Read more >
The genetic and environmental control of microfibril angle (MFA) and its genetic correlations with other wood and growth traits are still not well established in Eucalyptus sp. To determine the narrow-sense heritability estimates (h (2)) of MFA, wood density (D), Klason lignin (KL) content, syringyl to guaiacyl (S/G) ratio and growth traits, their variation from pith to cambium and their genetic correlations. Heritability and correlations were assessed in 340 control-pollinated progenies of 14-year-Eucalyptus urophylla S.T. Blake using near infrared spectroscopic models. Moderate to high heritability were found for MFA (h (2) = 0.43), D (h (2) = 0.61), S/G (h (2) = 0.71) and LK (h (2) = 0.76). The genetic control of D and MFA and the genetic and residual correlation between chemical and growth traits varied with age. The genetic correlation C x D was always strongly negative (r < -0.80) while the correlation D x MFA remained constant and positive in the juvenile wood (r = 0.7), before disappearing in the mature wood. These results could be explained by gene pleiotropic effect, low microfibril angle compensating for low wood density and fast growth or by linkage disequilibrium induced by sampling. Variations in MFA and KL in the mature wood were also genetically controlled. These findings provide the opportunity for developing breeding strategies for pulpwood, fuelwood and sawntimber production in Eucalyptus sp.Read less <
Keywords
MFA
NIR spectroscopy
TRAITS
NITENS
GLOBULUS
VARIANCE
MODEL
English Keywords
Variance components
Klason lignin
Syringyl to guaiacyl ratio
Factorial mating design
Wood phenotyping
WITHIN-TREE VARIATION
BASIC DENSITY
PARAMETERS
SELECTION
TASMANIA
Origin
Hal imported