a joint venture of csiro & forest research ensis-genetics the joint forces of csiro & scion...
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A JOINT VENTURE OF CSIRO & FOREST RESEARCH
Ensis-Genetics
THE JOINT FORCES OF CSIRO & SCION
Harry Wu and Milos Ivkovich
Breeding For Wood Quality And End-Products in Radiata Pine:
Adverse Genetic Correlation and Economic Weights
IUFRO All Division 5 Conference, Taipei, 2007
THE JOINT FORCES OF CSIRO & SCION
The issues arising from previous breeding in radiata pine
Adverse genetic correlation between wood quantity and quality traits in radiata pine
Strategies of breeding to address adverse genetic correlation
Content
THE JOINT FORCES OF CSIRO & SCION
Trees from native standsTrees from 1st gen. progeny
Genetic gain from breeding for growth and
form in radiata pineG1. 30% realized genetic gain ($1,395m NPV rotation)
G2. 11% predicted genetic gain ($511m NPV rotation)
Trees from 2st gen. progeny
THE JOINT FORCES OF CSIRO & SCION
-0.6, 0.27, -0.59 between growth and density, MfA, and MoE
y = -0.98x + 82.451
R2 = 0.0956
60
65
70
75
80
85
90
4 5 6 7 8 9 10 11
Predicted Breeding Value for MOE (GPa)
Pre
dic
ted
Bre
ed
ing
Va
lue
fo
r C
ore
Le
ng
th (
mm
)
Adverse genetic correlation between juvenile wood quality traits and growth traits in the progeny of 2nd generation breeding population
THE JOINT FORCES OF CSIRO & SCION
Adverse effect on stiffness from selection on growth in radiata pine population
Percentage change of stiffness based on different population and selection scenario (based on 226,474 radiata pine trees in
STBA database)
-15%
-10%
-5%
0%
5%
10%
15%
20%
25%
1G 2G 3G 1G-Top20
2G-Top20
3G-Top20
Top20 MAI-Top20
STF-Top20
BRS-Top20
SWE-Top20
THE JOINT FORCES OF CSIRO & SCION
55 publications in radiata pine 1960-2007
11 traits with focus on wood quality DEN MfA MoE SGA SRG FBL DBH STS BRA
BRS BRC
Heritability and genetic correlation
Genetic Parameters
THE JOINT FORCES OF CSIRO & SCION
Genetic correlation between DBH and wood density in radiata pine
Range -1.08 - 0.60
13 Pub. 64 estimates, 94% negative
0
5
10
15
20
25
30
35
-2.0 -1.7 -1.4 -1.1 -0.8 -0.5 -0.2 0.1 0.4 0.7 1.0 1.3 1.6 1.9
Estimated Genetic Correlation Between DBH and Density
Fre
qu
en
cy
of
Es
tim
ate
s 51.0x
THE JOINT FORCES OF CSIRO & SCION
Wood Density
Range 0-1.21, Mean=0.59, Median=0.64,
25 Pub. 244 Estimates
THE JOINT FORCES OF CSIRO & SCION
MfA
Range 0-1.15, Mean=0.61, Median=0.62
5 Pub. 122 Estimates
THE JOINT FORCES OF CSIRO & SCION
MoE
Range 0.04-0.85, Mean=0.49, Median=0.51
8 Pub. 134 Estimates
THE JOINT FORCES OF CSIRO & SCION
Summary of Heritability
Mean, Min. and Max. of heritability
0.00
0.20
0.40
0.600.80
1.00
1.20
DENM
fASPG
FBL
STF (MoE
)BRC
BRSBRA
DBHSTS
SHR
Traits
Her
itab
ility Min
Max
Mean
THE JOINT FORCES OF CSIRO & SCION
Develop economic breeding objective (weights)
Dissect genetic base of the adverse correlation and developing purging strategy
Strategies dealing with adverse genetic correlation
THE JOINT FORCES OF CSIRO & SCION
Developing breeding objective
Breeding for profit – which is the best tree??
-$4
$14
$7
$10
$9$12
THE JOINT FORCES OF CSIRO & SCION
Developing breeding objective
Biological Values
Economic Values
BIO-ECONOMIC MODELBIO-ECONOMIC MODEL
Economic Weight of Target Traits
THE JOINT FORCES OF CSIRO & SCION
Sawing study and resource evaluationSawing study and resource evaluation
Resource ProductWood properties Structural grades
Link
Relate
THE JOINT FORCES OF CSIRO & SCION
Breeding objective traits and their economic weights
MAI SWE BRS MOE
unit m3 mm/m mm MPa
PlantationsEW $/ha
291 58 248 0
SawmillEW $/m3 -0.18 1.19 1.97 10.5
IntegratedEW $/ha
416 194 620 977
THE JOINT FORCES OF CSIRO & SCION
Genetic gain with selection intensity 1/10
MAI SWE* BRS* MOE ΔNPV
Mean 24 10.3 5.5 11.3
unit m3/ha mm/m cm MPa %
Grower 8.09 0.37 -0.63 0.02 115.4SawMill 2.21 -4.4 -0.31 0.32 34.1
Integrated 6.7 -2.07 -0.57 0.15 61.1
Objective Traits
THE JOINT FORCES OF CSIRO & SCION
Genetic gain for radiata pine population (based on economic breeding objective and genetic parameters)
NPV($/ha) based on different population and selection scenario (based on 226,474 radiata pine trees in STBA database)
$0
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
$4,500
$5,000
1G 2G 3G 1G-Top20
2G-Top20
3G-Top20
Top20 MAI-Top20
STF-Top20
BRS-Top20
SWE-Top20
THE JOINT FORCES OF CSIRO & SCION
Further studies addressing adverse genetic correlation
Juvenile Wood Initiative Genetic bases of negative genetic
correlation Developing breeding and deployment
strategies using a VIRTUE GENE Deterministic model
Locus-based model
Silviculture + Genetics
THE JOINT FORCES OF CSIRO & SCION
Thanks
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