Optimized conditions for rapd analysis inPinus radiata

  • Ewa Ostrowska
  • Morley Muralitharan
  • Stephen Chandler
  • Peter Volker
  • Sandra Hetherington
  • Robin Mitra
  • Frank Dunshea
Genetic Transformation/Somatic Cell Genetics Technical Note


Pinus radiata is the most important softwood plantation species in Australia and New Zealand. The improtance of this species in forestry has led to an increasing demand to improve the efficiency of selection time of the production population, which currently takes 13 yr by traditional methods. With the application of molecular biology techniques such as random amplified polymorphic DNA (RAPD) the selection period can be reduced to 6 yr. In this study, the conditions for RAPD were optimized and the feasibility of this marker system was investigated with different families ofPinus radiata from Tasmania and South Australia. Best concentrations of Taq-polymerase (1 U), magnesium chloride (2 mM), and template DNA (20 ng) were selected to test different polymerase chain reaction (PCR) thermocycler profiles. Devey's et al. (1996) program was the most effective for production of clear RAPD bands. Best conditions were investigated to screen 10–12 bp arbitrary Breasatec and Operon primers. Both types were found useful at detecting genetic variation between families. Seventy percent and thirty percent of the selected Bresatec and Operon primers, respectively, produced polymorphic bands.

Key words

Polymorphisms RAPD Pinus radiata genetic diversity PCR primers 


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Copyright information

© Society for In Vitro Biology 1998

Authors and Affiliations

  • Ewa Ostrowska
    • 1
    • 2
  • Morley Muralitharan
    • 2
    • 3
  • Stephen Chandler
    • 4
  • Peter Volker
    • 5
  • Sandra Hetherington
    • 5
  • Robin Mitra
    • 6
  • Frank Dunshea
    • 1
  1. 1.Agriculture VictoriaWerribeeAustralia
  2. 2.Department of Chemical SciencesVictoria University of TechnologySt AlbansAustralia
  3. 3.School of AgricultureCharles Sturt UniversityWagga WaggaAustralia
  4. 4.FlorigeneCollingwoodAustralia
  5. 5.ANM Forest ManagementNew NorfolkAustralia
  6. 6.School of AgricultureLaTiobe UniversityBundooraAustralia

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