Identifying deployment zones for Eucalyptus camaldulensis × E. globulus and × E. grandis hybrids using factor analytic modelling of genotype by environment interaction

Hardner, C, Dieters, M, DeLacy, I, Neal, J, Fletcher, S, Dale, G and Basford, K (2011) Identifying deployment zones for Eucalyptus camaldulensis × E. globulus and × E. grandis hybrids using factor analytic modelling of genotype by environment interaction. Australian Forestry, 74 1: 30-35.

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Author Hardner, C
Dieters, M
DeLacy, I
Neal, J
Fletcher, S
Dale, G
Basford, K
Title Identifying deployment zones for Eucalyptus camaldulensis × E. globulus and × E. grandis hybrids using factor analytic modelling of genotype by environment interaction
Formatted title
Identifying deployment zones for Eucalyptus camaldulensis × E. globulus and × E. grandis hybrids using factor analytic modelling of genotype by environment interaction
Journal name Australian Forestry   Check publisher's open access policy
ISSN 0004-9158
Publication date 2011-03
Sub-type Article (original research)
Volume 74
Issue 1
Start page 30
End page 35
Total pages 6
Place of publication Yarralumla, A.C.T., Australia
Publisher Institute of Foresters of Australia
Collection year 2012
Language eng
Formatted abstract
In this study we apply factor analytic methods to the analysis of diameter at breast height (DBH) at 3 years for 22 trials of 892 clones from four E. camaldulensis x E. globulus and six E. camaldulensis x E. grandis families established throughout Australia (Queensland, New South Wales, Victoria, Tasmania and Western Australia). Three factors were sufficient to describe the genetic variation in the data set and, on average, described 86% of the genetic variance within a trial. Estimated broad-sense heritability ranged from 0.05 to 0.85, and genetic correlation estimates between pairs of trials ranged from 0.09 to 0.99. Two-dimensional plots of factor loadings and cluster analysis of the estimated genetic correlation matrix indicated that the trials formed three groups that represent potential zones for deployment to maximise genetic gain. However, there was no geographic pattern in the distribution of the trials within these groups; further research is required to develop predictive models of the patterns in GxE for the germplasm and identify genotypes that are superior in each deployment zone.
Keyword Breeding
Breeding value
Environmental factors
Genotype environment interaction
Genetic gain
Hybrids
Eucalyptus camaldulensis
Eucalyptus globulus
Eucalyptus grandis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Agriculture and Food Sciences
 
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Created: Thu, 17 Mar 2011, 12:41:09 EST by Dr Craig Hardner on behalf of School of Agriculture and Food Sciences