Identification of quantitative trait loci for wood and fibre properties in two full-sib pedigrees of Eucalyptus globulus |
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| Authors: | K Thamarus K Groom A Bradley C A Raymond L R Schimleck E R Williams G F Moran |
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| Institution: | (1) CSIRO Forestry and Forest Products and CRC for Sustainable Production Forestry, P.O Box E4008, Kingston, ACT, 2604, Australia;(2) CSIRO Forestry and Forest Products and CRC for Sustainable Production Forestry, P.O. Box 252-12, Hobart, TAS, 7001, Australia;(3) CSIRO Forestry and Forest Products, Private Bag 10, Clayton South, VIC, 3169, Australia |
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| Abstract: | Regions of the genome influencing wood and fibre traits in Eucalyptus globulus Labill. have been identified in two full-sib pedigrees that share a common male parent. The first pedigree, cross A, contains 148 progeny, and the second pedigree, cross B, contains 135 progeny. Subsets of progeny of these two controlled crosses were planted at seven sites throughout Australia in 1990. Wood cores were taken at 0.9 m above ground in 1997, and wood and fibre traits were analysed for each individual. Three quantitative trait loci (QTL) affecting wood density, one QTL affecting pulp yield and one QTL affecting microfibril angle have been located in both pedigrees, using single-factor analysis of variance. Other QTLs affecting these traits, as well as fibre length and cellulose content were located in cross A only. |
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