Differences in gene expression within a striking phenotypic mosaic Eucalyptus tree that varies in susceptibility to herbivory.

ABSTRACT:

Background

Long-lived trees can accumulate mutations throughout their lifetimes that may influence biotic and abiotic interactions. For example, some Eucalyptus trees display marked variation in herbivore defence within a single canopy. These "mosaic" trees support foliage with distinct chemotypes which are differentially favoured by insect and vertebrate herbivores, resulting in susceptible and resistant branches within a single canopy. These mosaic trees provide a unique opportunity to explore the biosynthesis and genetic regulation of chemical defences in the foliage. The biosynthesis of the principal defence compounds, terpenoid-dominated essential oils, is well understood. However, the regulation of the genes involved and thus the control of phenotypic variation within a singl

SUBMITTER: Padovan A 

PROVIDER: S-EPMC3599227 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature