scholarly journals Roles of European and Japanese larch in the genetic control of growth, architecture and wood quality traits in interspecific hybrids (Larix � eurolepis Henry)

2004 ◽  
Vol 61 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Luc E. P�ques
Keyword(s):  
Genetic Control ◽  
Interspecific Hybrids ◽  
Wood Quality ◽  
Japanese Larch ◽  
Quality Traits

Heritability and phenotypic and genetic correlations of coastal Douglas-fir (Pseudotsuga menziesii) wood quality traits

2008 ◽  
Vol 38 (6) ◽  
pp. 1536-1546 ◽  
Author(s):  
Nicholas K. Ukrainetz ◽  
Kyu-Young Kang ◽  
Sally N. Aitken ◽  
Michael Stoehr ◽  
Shawn D. Mansfield
Keyword(s):  
Cell Wall ◽  
Genetic Control ◽  
Pseudotsuga Menziesii ◽  
Wood Quality ◽  
Genetic Correlations ◽  
Douglas Fir ◽  
Correlated Response ◽  
Sample Population ◽  
Quality Traits ◽  
Glucose Content

Genetic control and relationships among coastal Douglas-fir ( Pseudotsuga menziesii (Mirb.) Franco var. menziesii) growth and wood quality traits were assessed by estimating heritability and phenotypic and genetic correlations using 600 trees representing 15 full-sib families sampled from four progeny test sites. Heritability estimates ranged from 0.23 to 0.30 for growth traits, 0.19 for fibre coarseness, from 0.21 to 0.54 for wood density, from 0.16 to 0.97 for cell wall carbohydrates, and 0.79 and 0.91 for lignin content at two sites, Squamish River and Gold River, respectively. Glucose content, indicative of cell wall cellulose composition, and lignin were shown to be under strong genetic control, whereas fibre coarseness was shown to be under weak genetic control. Phenotypic correlations revealed that larger trees generally have longer fibres with higher fibre coarseness, lower density, lower carbohydrate content, a greater proportion of cell wall lignin, and higher microfibril angle. Genetic correlations and correlated response to selection suggest that breeding for height growth would result in a reduction in wood quality, whereas breeding for improved earlywood density in Douglas-fir would result in negligible reductions in volume and appears to be an ideal target for selecting for improved wood quality (density) while maintaining growth in the sample population.

scholarly journals Efficiency of early selection for rotation-aged wood quality traits in radiata pine

2007 ◽  
Vol 64 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Harry X. Wu ◽  
Mike B. Powell ◽  
Junli L. Yang ◽  
Milo Ivković ◽  
Tony A. McRae
Keyword(s):  
Wood Quality ◽  
Radiata Pine ◽  
Early Selection ◽  
Quality Traits ◽  
Selection For

Quantitative trait locus (QTL) analysis of wood quality traits in Eucalyptus nitens

2009 ◽  
Vol 6 (2) ◽  
pp. 305-317 ◽  
Author(s):  
Bala R. Thumma ◽  
Simon G. Southerton ◽  
John C. Bell ◽  
John V. Owen ◽  
Martin L. Henery ◽  
...  
Keyword(s):  
Quantitative Trait Locus ◽  
Qtl Analysis ◽  
Quantitative Trait ◽  
Wood Quality ◽  
Quality Traits ◽  
Eucalyptus Nitens ◽  
Trait Locus

scholarly journals Genetic control of wood quality of Myracrodruon urundeuva populations under anthropogenic disturbance

2020 ◽  
Vol 20 (4) ◽  
Author(s):  
Lara Comar Riva ◽  
Marcela Aparecida de Moraes ◽  
José Cambuim ◽  
Daniele Fernanda Zulian ◽  
Luciane Missae Sato ◽  
...  
Keyword(s):  
Genetic Control ◽  
Anthropogenic Disturbance ◽  
Wood Quality

scholarly journals Genomic selection for resistance to spruce budworm in white spruce and relationships with growth and wood quality traits

2020 ◽  
Vol 13 (10) ◽  
pp. 2704-2722 ◽  
Author(s):  
Jean Beaulieu ◽  
Simon Nadeau ◽  
Chen Ding ◽  
Jose M. Celedon ◽  
Aïda Azaiez ◽  
...  
Keyword(s):  
Genomic Selection ◽  
Wood Quality ◽  
Spruce Budworm ◽  
White Spruce ◽  
Quality Traits ◽  
Selection For

scholarly journals Effect of population structure and kinship relationships on the results of association mapping tests of growth and wood quality traits in four Eucalyptuspopulations

2011 ◽  
Vol 5 (S7) ◽  
Author(s):  
Eduardo Pablo Cappa ◽  
Maria C Martínez ◽  
Martín N Garcia ◽  
Pamela V Villalba ◽  
Susana N Marcucci Poltri
Keyword(s):  
Population Structure ◽  
Association Mapping ◽  
Wood Quality ◽  
Quality Traits

scholarly journals Candidate gene-based association mapping of growth and wood quality traits in Eucalyptus globulusLabill

2011 ◽  
Vol 5 (S7) ◽  
Author(s):  
Saravanan Thavamanikumar ◽  
Josquin Tibbits ◽  
Luke McManus ◽  
Peter Ades ◽  
Desmond Stackpole ◽  
...  
Keyword(s):  
Association Mapping ◽  
Candidate Gene ◽  
Wood Quality ◽  
Quality Traits

scholarly journals Seasonal Differences in Structural and Genetic Control of Digestibility in Perennial Ryegrass

2022 ◽  
Vol 12 ◽  
Author(s):  
Vincent Colas ◽  
Philippe Barre ◽  
Frederik van Parijs ◽  
Lukas Wolters ◽  
Yannick Quitté ◽  
...  
Keyword(s):  
Cell Wall ◽  
Genetic Control ◽  
Perennial Ryegrass ◽  
Lignin Content ◽  
Forage Quality ◽  
Phenotypic Variance ◽  
Quality Traits ◽  
Forage Digestibility ◽  
Cell Wall Biogenesis ◽  
Candidate Gene Association

Perennial ryegrass is an important forage crop in dairy farming, either for grazing or haying purposes. To further optimise the forage use, this study focused on understanding forage digestibility in the two most important cuts of perennial ryegrass, the spring cut at heading and the autumn cut. In a highly diverse collection of 592 Lolium perenne genotypes, the organic matter digestibility (OMD) and underlying traits such as cell wall digestibility (NDFD) and cell wall components (cellulose, hemicellulose, and lignin) were investigated for 2 years. A high genotype × season interaction was found for OMD and NDFD, indicating differences in genetic control of these forage quality traits in spring versus autumn. OMD could be explained by both the quantity of cell wall content (NDF) and the quality of the cell wall content (NDFD). The variability in NDFD in spring was mainly explained by differences in hemicellulose. A 1% increase of the hemicellulose content in the cell wall (HC.NDF) resulted in an increase of 0.81% of NDFD. In autumn, it was mainly explained by the lignin content in the cell wall (ADL.NDF). A 0.1% decrease of ADL.NDF resulted in an increase of 0.41% of NDFD. The seasonal traits were highly heritable and showed a higher variation in autumn versus spring, indicating the potential to select for forage quality in the autumn cut. In a candidate gene association mapping approach, in which 503 genes involved in cell wall biogenesis, plant architecture, and phytohormone biosynthesis and signalling, identified significant quantitative trait loci (QTLs) which could explain from 29 to 52% of the phenotypic variance in the forage quality traits OMD and NDFD, with small effects of each marker taken individually (ranging from 1 to 7%). No identical QTLs were identified between seasons, but within a season, some QTLs were in common between digestibility traits and cell wall composition traits confirming the importance of hemicellulose concentration for spring digestibility and lignin concentration in NDF for autumn digestibility.

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