Determining Hybridization in Jack Pine and Lodgepole Pine from British Columbia

Authors

  • Lisa J. Wood
  • Ian D. Hartley
  • Paul Watson

Keywords:

Hybridization, <i>Pinus contorta</i> var. <i>latifolia</i>, <i>Pinus banksiana</i>, wood properties, Fiber Quality Analysis, SilviScan

Abstract

This study was conducted to find wood quality evidence of hybridization between jack pine (Pinus banksiana) and lodgepole pine (Pinus contorta var. latifolia) in northeast British Columbia (BC). To determine if wood and fiber traits could be used as distinguishing features among jack pine, lodgepole pine, and their hybrids, differences in morphology and wood and fiber traits were related to the genetic identity of each sample. Thirty samples each of pure lodgepole pine, pure jack pine, and potential hybrids were collected from the Prince George area of BC, the Smoky Lake area of Alberta, and the Fort Nelson region of BC, respectively. Two 10-mm cores (bark to bark) were taken from each tree and analyzed for fiber length and coarseness, microfibril angle (MFA), basic density, earlywood:latewood ratios, and cell dimensions. Needle and cone morphology was used to distinguish among species groups in the field. Based on genetically identified samples, the fiber traits that best differentiated among pure jack pine, lodgepole pine, and hybrids were MFA and cell area.

References

Barbour J (2004) Wood quality. Pages 1840 - 1847 in J Evans, J Burley, J Youngquist, eds, Encyclopedia of forest sciences. Elsevier Major Reference Works, Oxford, UK.nBarnett JR, Jeronimidis G (2003) Wood quality and its biological basis. CRC Press LLC, Boca Raton, FL. 226 pp.nChristensen KI, Dar GH (2003) A morphometric study of hybridization between Pinus mugo and P. sylvestris (Pinaceae). Intern Soc Hortical Sci Acta Hort 615:211 - 221.nCritchfield WB (1985) The late quaternary history of lodgepole and jack pines. Can J Res 15:749 - 772.nDelong C, MacKinnon A, Jang L (1990) A field guide for identification and interpretation of ecosystems of the northeast portion of the Prince George forest region. BC Ministry of Forests. Pages 9 - 11, 21, 35.nFranklin GL (1945) Preparation of thin sections of synthetic resins and wood-resin composites, and a new macerating method for wood. Nature 155:51.nHatton JV (1997) Pulping and papermaking properties of managed second growth softwoods. TAPPI J 80(1):178 - 184.nHaygreen JG, Bowyer JL (1996) Forest products and wood science. Iowa State University Press, Ames, IA. 484 pp.nIvkovich M, Namkoong G, Koshy M (2002) Genetic variation in wood properties of interior spruce 2. Tracheid characteristics. Can J Res 32:2128 - 2139.nJones PD, Schimleck LR, Peter GF, Daniels RF, Clark AI II (2005) Non-destructive estimation of Pinus taeda L tracheid morphological characteristics for samples from a wide range of sites in Georgia. Wood Sci Technol 39:529 - 545.nKoch P (1996) Lodgepole pine in North America, Vol. 1 - 3. Forest Products Society, Madison, WI. 1096 pp.nKozlowski TT (1979) Tree growth and environmental stresses. The University of Washington Press, Seattle, WA. 192 pp.nMeidinger D, Pojar J (1991). Ecosystems of British Columbia. BC Ministry of Forests, Victoria, BC, Canada. 330 pp.nPanshin AJ, de Zeeuw C (1980) Textbook of wood technology, 4th ed. McGraw-Hill Inc. Toronto, Ontario, Canada. 722 pp.nPotter S, Hanemaayer V, Pitts S, Watson P (2001) Fiber quality prediction in BC spruce with DNA based methods. Pulp and Paper Research Institute of Canada, PPR 1528, Vancouver, BC.nSavolainen O, Kärkkäinen K (2004) Breeding and genetic resources of scots pine. Pages 1517 - 1520 in J Evans, J Burley, J Youngquist, eds, Encyclopedia of forest sciences. Elsevier Major Reference Works, Oxford, UK.nvan Buijtenen JP (2004) Genetics and improvement of wood properties. Pages 1466 - 1472 in J Evans, J Burley, J Youngquist, eds, Encyclopedia of forest sciences. Elsevier Major Reference Works, Oxford, UK.nWheeler NC, Guries RP (1987) A quantitative measure of introgression between lodgepole and jack pines. Can J Bot 65:1876 - 1885.nWood LJ (2006) An investigation of the natural hybridization between jack pine (Pinus banksiana) and lodgepole pine (Pinus contorta var. latifolia) in Northern British Columbia. MSc thesis, University of Northern British Columbia, Prince George, BC, Canada. 251 pp.nWoodruff D (1973) Natural hybridization and hybrid zones. Syst Zool 22:213 - 218.nZobel B (2004) Biological improvement of wood properties. Pages 1458 - 1466 in J Evans, J Burley, J Youngquist, eds, Encyclopedia of forest sciences. Elsevier Major Reference Works, Oxford, UK.n

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Published

2009-10-16

Issue

Number 4 / October 2009

Section

Research Contributions

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