Macroevolutionary chemical escalation in an ancient plant-herbivore arms race.

  title={Macroevolutionary chemical escalation in an ancient plant-herbivore arms race.},
  author={Judith X. I. Becerra and Koji Noge and D. Lawrence Venable},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={106 43},
A central paradigm in the field of plant-herbivore interactions is that the diversity and complexity of secondary compounds in plants have intensified over evolutionary time, resulting in the great variety of secondary products that currently exists. Unfortunately, testing of this proposal has been very limited. We analyzed the volatile chemistry of 70 species of the tropical plant genus Bursera and used a molecular phylogeny to test whether the species' chemical diversity or complexity have… CONTINUE READING