Home Publications Tree Improvement and Genetics Southern Forest Tree Improvement Conference 24th Southern Forest Tree Improvement Conference (1997) Identification of Quantitative Trait Loci Affecting Rooting in Loblolly Pine

Identification of Quantitative Trait Loci Affecting Rooting in Loblolly Pine

Genetic control of rooting and root development is poorly-understood in conifers. This study was designed to identify quantitative trait loci (QTLs) affecting rooting 0f loblolly pine (Pinus taeda L.) stem cuttings. In each of four seasons (winter 1995, summer 1995, winter 1996 and summer 1996), sixteen cuttings were taken from each of 384 open-pollinated offspring of loblolly pine clone 9-1020, which were being maintained as hedges. Cuttings were rooted in greenhouse environments, and the rooting percentage and average number of new ro0ts were recorded for each hedge. Megagametophyte DNA from each of the 384 offspring was scored for 73 RAPD markers. Keywords: QTL mapping, rooting, loblolly pine, Pinus taeda L.


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Author(s): David L. Remington, Scott E. Surles, Barbara S. Crane, David M. O'Malley, Barry Goldfarb

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1997

Section: Poster Abstracts

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