Poplar defense against insect herbivoresThis review is one of a selection of papers published in the Special Issue on Poplar Research in Canada.

Author:

Philippe Ryan N.123,Bohlmann Jörg123

Affiliation:

1. Michael Smith Laboratories, University of British Columbia, 2185 East Mall, Vancouver, BC V6T 1Z4, Canada.

2. Department of Botany, University of British Columbia, 6270 University Boulevard, Vancouver, BC V6T 1Z4, Canada.

3. Department of Forest Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.

Abstract

The availability of a poplar ( Populus trichocarpa Torr & A. Gray, black cottonwood) genome sequence is enabling new research approaches in angiosperm tree biology. Much of the recent genomics research in poplars has been on wood formation, growth and development, resistance to abiotic stress and pathogens, motivated, at least in part, by the fact that poplars provide an important system for large-scale, short-rotation plantation forestry in the Northern Hemisphere. To sustain productivity and ecosystem health of natural and planted poplar forests it is of critical importance to also develop a better understanding of the molecular mechanisms of defense and resistance of poplars against insect pests. Previous research has established a solid foundation of the chemical ecology of poplar defense against insects. This review summarizes some of the relevant literature on defense against insect herbivores in poplars with an emphasis on molecular, biochemical, and emerging genomic research in this important field within forest biotechnology and chemical ecology. Following a general introduction, we provide a brief overview of some of the most relevant insect pests of poplars; we then describe some of the general defense strategies of poplars along with selected examples of their activities. We conclude with a summary of emerging results and perspectives from recent advances in genomics research on poplar defense against insects.

Publisher

Canadian Science Publishing

Subject

Plant Science

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