Journal article
Association mapping for wood quality and growth traits in Eucalyptus globulus ssp. globulus Labill identifies nine stable marker-trait associations for seven traits
S Thavamanikumar, LJ McManus, PK Ades, G Bossinger, DJ Stackpole, R Kerr, S Hadjigol, JS Freeman, RE Vaillancourt, P Zhu, JFG Tibbits
Tree Genetics and Genomes | Published : 2014
Abstract
The moderate to high levels of nucleotide diversity and low linkage disequilibrium found in many forest tree species make them ideal candidates for association mapping. Here, we report candidate gene-based association mapping results for complex wood quality and growth traits in Eucalyptus globulus Labill. ssp. globulus, the most widely grown eucalypt in temperate regions of the world. Ninety-eight single nucleotide polymorphisms (SNPs) from 20 wood quality candidate genes were assayed in a discovery population consisting of 385 trees sourced from a provenance-progeny trial. Twenty-five selected SNPs with significant associations (P < 0.05) in the discovery population were assayed for valida..
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Funding Acknowledgements
The authors wish to thank Gunns Ltd for providing access to the provenance-progeny trial to collect DNA samples and the Southern Tree Breeding Association for access to the validation population and provision of phenotypic data and breeding values. Dr. Chris Harwood is thanked for his constant support throughout the project and for comments on the manuscript. Professor Brad Potts and Dr. Pauline Garnier-Gere are thanked for their comments on the manuscript. Funding support for this project was provided by the CRC for Forestry (www.crcforestry.com.au).