Journal of Forestry Research

, Volume 14, Issue 2, pp 171–179 | Cite as

Recent advances in the molecular genetics of resin biosynthesis and genetic engineering strategies to improve defenses in conifers

  • Tang Wei
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Abstract

Since the first terpenoid synthase cDNA was obtained by the reverse genetic approach from grand fir, great progress in the molecular genetics of terpenoid formation has been made with angiosperms and genes encoding a monoterpene synthase, a sesquiterpene synthase, and a diterpene synthase. Tree killing bark beetles and their vectored fungal pathogens are the most destructive agents of conifer forests worldwide. Conifers defend against attack by the constitutive and inducible production of oleoresin that accumulates at the wound site to kill invaders and both flush and seal the injury. Although toxic to the bark beetle and fungal pathogen, oleoresin also plays a central role in the chemical ecology of these boring insects. Recent advances in the molecular genetics of terpenoid biosynthesis provide evidence for the evolutionary origins of oleoresin and permit consideration of genetic engineering strategies to improve conifer defenses as a component of modern forest biotechnology. This review described enzymes of resin biosynthesis, structural feathers of genes genomic intron and exon organization, pathway organization and evolution, resin production and accumulation, interactions between conifer and bark beetle, and engineering strategies to improve conifer defenses.

Keywords

Genetic engineering strategies Resin biosynthesis Bark beetles Genomics Molecular genetics 

CLC Number

Q341 TQ322.4 

Document code

A 
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Copyright information

© Northeast Forestry University 2003

Authors and Affiliations

  • Tang Wei
    • 1
  1. 1.Forest Biotechnology GroupNorth Carolina State UniversityRaleighUSA

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