Genetic association studies in Eucalyptus pilularis Smith (blackbutt)

Sexton, Timothy R., Henry, Robert J., McManus, Luke J., Henson, Michael, Thomas, Dane S. and Shepherd, Mervyn (2010) Genetic association studies in Eucalyptus pilularis Smith (blackbutt). Australian Forestry, 73 4: 254-258.

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Author Sexton, Timothy R.
Henry, Robert J.
McManus, Luke J.
Henson, Michael
Thomas, Dane S.
Shepherd, Mervyn
Title Genetic association studies in Eucalyptus pilularis Smith (blackbutt)
Journal name Australian Forestry   Check publisher's open access policy
ISSN 0004-9158
Publication date 2010-12-01
Sub-type Article (original research)
Volume 73
Issue 4
Start page 254
End page 258
Total pages 5
Place of publication Yarralumla, ACT
Publisher Institute of Foresters of Australia
Language eng
Abstract Breeding for wood quality is limited by the long generation times and the delay before wood quality can be measured reliably. Association studies allow links between phenotype and genotype to be made, and are a prelude to accelerated domestication of trees by molecular breeding approaches. This study uses association genetics to identify DNA polymorphisms that correlate with solid wood properties of Eucalyptus pilularis Smith (blackbutt). We undertook extensive phenotyping of dimensional stability, growth and structural wood properties on a nine-year-old progeny trial established by Forests NSW at Hannam Vale, near Port Macquarie in NSW. A subset of 372 phenotyped individuals representing 284 families collected from 37 provenances was used as the association population for genotypic assessment. Fifty-two out of 127 novel DNA polymorphisms were surveyed within four candidate genes, CCR, CAD, MYB1 and MYB2. Several putative associations between wood quality traits and selected DNA polymorphisms are reported, along with the likely mechanism of action on wood quality. Association studies such as this will facilitate non-destructive DNA tests for heritable wood properties that can be used to enrich breeding populations at any developmental stage with desirable alleles.
Keyword Wood properties
Phenotypic variation
Genetic variation
Molecular markers
Marker-aided selection
Eucalyptus pilularis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Official 2011 Collection
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Created: Fri, 25 Mar 2011, 22:13:40 EST by Samantha Richards on behalf of Qld Alliance for Agriculture and Food Innovation