ArticleProceedings of the National Academy of Sciences of the United States of America2022
Additive genetic effects in interacting species jointly determine the outcome of caterpillar herbivory.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Evolution of species' range and niche in changing environments.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Admixture in a butterfly species complex creates a genomic mosaic of ancestry with distinct histories for different chromosomes.bioRxiv : the preprint server for biology · 2025Article
- High Quality Diet Enhances Immune Response and Affects Gene Expression During Viral Infection in an Insect Herbivore.Molecular ecology · 2025Article
- Genetic and behavioral differences between above and below ground Culex pipiens bioforms.Heredity · 2024Article
- Additive and interactive effects of anthropogenic stressors on an insect herbivore.Proceedings. Biological sciences · 2023Article
- Host association, environment, and geography underlie genomic differentiation in a major forest pest.Evolutionary applications · 2022Article
- Additive genetic effects in interacting species jointly determine the outcome of caterpillar herbivory.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
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Authors and funding
14 authors.
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Abstract
Plant-insect interactions are common and important in basic and applied biology. Trait and genetic variation can affect the outcome and evolution of these interactions, but the relative contributions of plant and insect genetic variation and how these interact remain unclear and are rarely subject to assessment in the same experimental context. Here, we address this knowledge gap using a recent host-range expansion onto alfalfa by the Melissa blue butterfly. Common garden rearing experiments and genomic data show that caterpillar performance depends on plant and insect genetic variation, with insect genetics contributing to performance earlier in development and plant genetics later. Our models of performance based on caterpillar genetics retained predictive power when applied to a second common garden. Much of the plant genetic effect could be explained by heritable variation in plant phytochemicals, especially saponins, peptides, and phosphatidyl cholines, providing a possible mechanistic understanding of variation in the species interaction. We find evidence of polygenic, mostly additive effects within and between species, with consistent effects of plant genotype on growth and development across multiple butterfly species. Our results inform theories of plant-insect coevolution and the evolution of diet breadth in herbivorous insects and other host-specific parasites.
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Registered trials
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