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Hannrup, B.; Cahalan, C.; Chantre, G.; Grabner, M.; Karlsson, B.; Le Bayon, I.; Jones, G.L.; Müller, U.; Pereira, H.; Rodrigues, J.C.; Rosner, S.; Rozenberg, P.; Wilhelmsson, L.; Wimmer, R.. |
Genetic parameters were estimated for wood and growth traits in two 19-yr-old clonal trials and a 40-yr-old full-sib progeny trial of Norway spruce [Picea abies (L.) Karst.]. In the clonal trials high (>0.4) broad-sense heritabilities were found for wood density traits, lignin content, number of internal cracks, growth traits, spiral grain and number of resin canals. Moderate (0.2-0.4) heritabilities were found for tracheid lumen diameter and cell wall thickness, microfibril angle and tracheid length, while low heritabilities (<0.2) were found for pulp yield, fibre strength, wood stiffness and wood colour. Lignin content and pulp yield showed low genetic variation, whereas the genotypic coefficient of variation for most other traits ranged between 5... |
Tipo: Journal Article |
Palavras-chave: PARAMETRE GENETIQUE; PROPRIETE DU BOIS; DENSITE DU BOIS; QUALITE DU BOIS; CROISSANCE; GAIN GENETIQUE; SELECTION GENETIQUE; CORRELATION GENETIQUE; HERITABILITE; ANGLE DU FIL DU BOIS; RENDEMENT EN PATE; DIMENSION DES TRACHEIDES. |
Ano: 2004 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007476df714&uri=/notices/prodinra1/2007/06/ |
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Pot, D.; Rodrigues, J.C.; Rozenberg, P.; Chantre, G.; Tibbits, J.; Cahalan, C.; Pichavant, F.; Plomion, C.. |
A three-generation outbred pedigree of 186 individuals was used to identify the genomic regions involved in the variability of chemical and physical wood properties of Pinus pinaster. A total of 54 quantitative trait loci (QTLs) was detected, with an average of 2.4 QTLs per trait. Clusters of wood properties QTLs were found at several points in the genome, suggesting the existence of pleiotropic effects of a limited number of genes. The colocalizationsobserved in this study are in accordance withthe genetic correlations previously reported in the literature. In addition, in an attempt to identify the genes underlying the QTLs, nine wood quality candidate genes involvedin cell wall structure were localized on the genetic map. Only one of them, Korrigan, a... |
Tipo: Journal Article |
Palavras-chave: QUALITE DU BOIS; PROPRIETE DU BOIS; LOCALISATION DE GENE; GENE CANDIDAT; KORRIGAN. |
Ano: 2006 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007c0866ba7&uri=/notices/prodinra1/2007/04/ |
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