Journal
TRENDS IN ECOLOGY & EVOLUTION
Volume 35, Issue 3, Pages 259-277Publisher
CELL PRESS
DOI: 10.1016/j.tree.2019.10.014
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Funding
- NSF [DGE-1445197]
- USDA NIFA [2019-67012-29659]
- Vanderbilt University
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Transcriptomic studies lend insights into the role of transcriptional plasticity in adaptation and specialization. Recently, there has been growing interest in understanding the relationship between variation in herbivorous insect gene expression and the evolution of diet breadth. We review the studies that have emerged on insect gene expression and host plant use, and outline the questions and approaches in the field. Many candidate genes underlying herbivory and specialization have been identified, and a few key studies demonstrate increased transcriptional plasticity associated with generalist compared with specialist species. Addressing the roles that transcriptional variation plays in insect diet breadth will have important implications for our understanding of the evolution of specialization and the genetic and environmental factors that govern insect-plant interactions.
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