Plant-Insect Interaction: The Saga of Molecular Coevolution

Abstract

Plant-insect interaction is a prime and evolutionarily successful association that offers an excellent platform to understand coevolution. These interactions have spurred speciation and are vital players of ecological dominance. The emergence of mutualistic relationship leads to the inception of molecular coevolution and diversification of plants and insects. Here, we have cataloged the various molecular factors that drive the establishment and progression of plant-insect interactions. An imbalance in the mutualistic relationship initiated the molecular arms race between plants and insects that resulted in a plethora of defense molecules in both counterparts. We have discussed the molecular events involved in the interaction, plant defense mechanism, and strategies employed by insects to combat plant defense. Furthermore, we have also focused on the coevolution of these molecules and their implications on plant-insect dialogue. We believe that this chapter will provide detailed molecular insights involved in the plant-insect interaction.