ArticleScientific reports2017
The chemical signatures underlying host plant discrimination by aphids.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Differential responses to Melanaphis sorghi (Hemiptera: Aphididae) reveal diverse resistance mechanisms across sorghum genotypes.Journal of economic entomology · 2026Article
- Aphid adaptation to plant secondary metabolites: adaptive mechanism of resistance evolution and future prospects.Horticulture research · 2026Article
- Article
- Plant volatiles and priority effects interactively determined initial community assembly of arthropods on multiple willow species.Ecology and evolution · 2023Article
- Soil legacy effects of plants and drought on aboveground insects in native and range-expanding plant communities.Ecology letters · 2023Article
- Response of Aphid Parasitoids to Volatile Organic Compounds from Undamaged and InfestedMolecules (Basel, Switzerland) · 2022Article
- Vector-borne plant pathogens modify top-down and bottom-up effects on insect herbivores.Oecologia · 2021Article
- The Power of Electropenetrography in Enhancing Our Understanding of Host Plant-Vector Interactions.Insects · 2019Article
- The Regulation of Plant Secondary Metabolism in Response to Abiotic Stress: Interactions Between Heat Shock and Elevated COFrontiers in plant science · 2019Article
- Untargeted Metabolomics Approach Reveals Differences in Host Plant Chemistry Before and After Infestation With Different Pea Aphid Host Races.Frontiers in plant science · 2019Article
- The Use of Metabolomics to Elucidate Resistance Markers against Damson-Hop Aphid.Journal of chemical ecology · 2018Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The diversity of phytophagous insects is largely attributable to speciation involving shifts between host plants. These shifts are mediated by the close interaction between insects and plant metabolites. However, there has been limited progress in understanding the chemical signatures that underlie host preferences. We use the pea aphid (Acyrthosiphon pisum) to address this problem. Host-associated races of pea aphid discriminate between plant species in race-specific ways. We combined metabolomic profiling of multiple plant species with behavioural tests on two A. pisum races, to identify metabolites that explain variation in either acceptance or discrimination. Candidate compounds were identified using tandem mass spectrometry. Our results reveal a small number of compounds that explain a large proportion of variation in the differential acceptability of plants to A. pisum races. Two of these were identified as L-phenylalanine and L-tyrosine but it may be that metabolically-related compounds directly influence insect behaviour. The compounds implicated in differential acceptability were not related to the set correlated with general acceptability of plants to aphids, regardless of host race. Small changes in response to common metabolites may underlie host shifts. This study opens new opportunities for understanding the mechanistic basis of host discrimination and host shifts in insects.
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