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

Age trend of heritability, genetic correlation, and efficiency of early selection for wood quality traits in Scots pine

2015 ◽  
Vol 45 (7) ◽  
pp. 817-825 ◽  
Author(s):  
Zhou Hong ◽  
Anders Fries ◽  
Harry X. Wu
Keyword(s):  
Genetic Correlation ◽  
Wood Density ◽  
Scots Pine ◽  
Wood Quality ◽  
Microfibril Angle ◽  
Ring Width ◽  
Early Selection ◽  
Quality Traits ◽  
Wood Traits ◽  
Selection For

To examine the efficiency of early selection for wood quality traits in the Scots pine (Pinus sylvestris L.) breeding program in Sweden, a total of 778 wood increment cores were sampled from 179 full-sib families in a single progeny trial at 40 years of age. Age trend of inheritance, age–age genetic correlation, and early selection efficiency for eight wood traits including annual ring width, wood density, microfibril angle (MFA), modulus of elasticity (i.e., wood stiffness; MOE), and fibre dimensions were studied. Heritabilities for the eight wood traits reached a plateau between age 5 years and age 15 years, with the highest heritability for radial fibre width and fibre coarseness (∼0.6) and the lowest heritability for ring width (∼0.2). Heritability reached about 0.4 for both wood density and MFA but only reached about 0.3 for MOE. Genetic correlation from early to reference age 30 years reached a very high level (>0.8) for all eight wood traits at age 5 years. Early selection was effective for wood quality traits in Scots pine, and selection at age 8 years is recommended for MOE in Scots pine.

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

Inheritance of density, microfibril angle, and modulus of elasticity in juvenile wood of Pinus radiata at two locations in Australia

2007 ◽  
Vol 37 (11) ◽  
pp. 2164-2174 ◽  
Author(s):  
Brian S. Baltunis ◽  
Harry X. Wu ◽  
Mike B. Powell
Keyword(s):  
Genetic Correlation ◽  
Pinus Radiata ◽  
Modulus Of Elasticity ◽  
Juvenile Wood ◽  
Wood Quality ◽  
Genetic Correlations ◽  
Microfibril Angle ◽  
Wood Properties ◽  
Quality Traits ◽  
Selection For

A total of 1640 increment cores from 343 radiata pine ( Pinus radiata D. Don) families were sampled at two second-generation progeny trials, aged 6 and 7 years, for a detailed genetic study of juvenile wood quality traits. Density, microfibril angle (MFA), and modulus of elasticity (MOE) were determined from pith to bark using SilviScan® technology. Heritability was greatest for area-weighted density at the two sites (0.63 and 0.77, respectively), and the lowest for growth traits (<0.23). Genotype by environment interaction was low for all three wood quality traits. A positive genetic correlation between density and MOE (0.43), and a highly negative, and therefore, favourable genetic correlation between MFA and MOE (–0.92) were observed, implying that improvement of multiple juvenile wood properties is possible. The genetic correlations between whole-core wood quality traits and individual-ring measurements suggest that improvement for juvenile wood properties across the entire profile of the corewood including the innermost rings can be achieved. However, density, MFA, and MOE had unfavourable genetic correlations with diameter growth suggesting that selection for increased density and MOE, and reduced MFA in the absence of selection for growth will result in a genetic loss for growth rate.

Expected benefits of genomic selection for growth and wood quality traits in Eucalyptus grandis

2020 ◽  
Vol 16 (4) ◽  
Author(s):  
Makobatjatji M. Mphahlele ◽  
Fikret Isik ◽  
Marja M. Mostert-O’Neill ◽  
S. Melissa Reynolds ◽  
Gary R. Hodge ◽  
...  
Keyword(s):  
Genomic Selection ◽  
Wood Quality ◽  
Eucalyptus Grandis ◽  
Quality Traits ◽  
Selection For ◽  
Expected Benefits

scholarly journals Factors affecting the accuracy of genomic selection for growth and wood quality traits in an advanced-breeding population of black spruce (Picea mariana)

BMC Genomics ◽  
2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Patrick R.N. Lenz ◽  
Jean Beaulieu ◽  
Shawn D. Mansfield ◽  
Sébastien Clément ◽  
Mireille Desponts ◽  
...  
Keyword(s):  
Genomic Selection ◽  
Picea Mariana ◽  
Black Spruce ◽  
Wood Quality ◽  
Breeding Population ◽  
Quality Traits ◽  
Factors Affecting ◽  
Selection For

Genomic relationship–based genetic parameters and prospects of genomic selection for growth and wood quality traits in Eucalyptus benthamii

2021 ◽  
Vol 17 (4) ◽  
Author(s):  
João Gabriel Zanon Paludeto ◽  
Dario Grattapaglia ◽  
Regiane Abjaud Estopa ◽  
Evandro Vagner Tambarussi
Keyword(s):  
Genomic Selection ◽  
Genetic Parameters ◽  
Wood Quality ◽  
Quality Traits ◽  
Genomic Relationship ◽  
Selection For
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