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Home → Publications → Tree Improvement and Genetics → Southern Forest Tree Improvement Conference → 22nd Southern Forest Tree Improvement Conference (1993) → Genetic mapping of quantitative trait loci influencing wood specific gravity in loblolly pine (Pinus taeda)

Genetic mapping of quantitative trait loci influencing wood specific gravity in loblolly pine (Pinus taeda)

We are attempting to map quantitative trait loci affecting wood specific gravity in a three-generation loblolly pine pedigree. Forty-eight progeny were measured for wood specific gravity and genotyped for 178 restriction fragment length polymorphism markers. Each marker was tested for linkage to variable genetic factors which influence wood specific gravity by comparison of progeny marker genotype class means for wood specific gravity. Fourteen markers showed differences in genotypic class means at the 0.01 level. An additional 127 progeny were genotyped and analyzed for one of the 14 significant markers. The marker, Pt1IFG149a, accounted for 5% of the total phenotypic variation in the progeny for wood specific gravity.


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Author(s): A. T. Groover, M. E. Devey, T. A. Fiddler, J. M. Lee, R. A. Megraw, T. Mitchell-Olds, B. K. Sherman, S. L. Vujcic, Claire G. Williams, David B. Neale

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1993

Section: Concurrent Session 5: Gene Mapping