Transcriptome Responses in Herbivorous Insects Towards Host Plant and Toxin Feeding

Vogel, Heiko; Musser, Richard O.; Celorio‐Mancera, Maria de la Paz

doi:10.1002/9781118829783.ch6

Cited by 74 publications

(100 citation statements)

References 142 publications

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“…; Vogel et al . ). We did not observe overt enrichment of other categories such as carboxylesterases that seem to be important in other systems (e.g.…”

Section: Resultsmentioning

confidence: 97%

“…Studies of plastic responses often identify digestive proteases as a highly differentially expressed category, hypothesized to be a response to plant protease inhibitors (Vogel et al . ). Although our enrichment analysis did not identify proteases as enriched in any plastic/evolved pattern, examination of representative protease transcripts on our array suggests that many demonstrate substantial evolved differences among the species, but most demonstrated no plastic response (Fig.…”

Section: Resultsmentioning

confidence: 97%

“…; Vogel et al . ). In addition to facilitating colonization of novel habitats, transcriptomic responses in the novel environment may also provide new, formerly covert targets of selection that influence evolutionary trajectories and adaptation (Moczek et al .…”

Section: Introductionmentioning

confidence: 97%

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Differences in performance and transcriptome‐wide gene expression associated with Rhagoletis (Diptera: Tephritidae) larvae feeding in alternate host fruit environments

et al. 2015

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Host race formation, the establishment of new populations using novel resources, is a major hypothesized mechanism of ecological speciation, especially in plant-feeding insects. The initial stages of host race formation will often involve phenotypic plasticity on the novel resource, with subsequent genetically based adaptations enhancing host-associated fitness differences. Several studies have explored the physiology of the plastic responses of insects to novel host environments. However, the mechanisms underlying evolved differences among host races and species remain poorly understood. Here, we demonstrate a reciprocal larval performance difference between two closely related species of Rhagoletis flies, R. pomonella and R. zephyria, specialized for feeding in apple and snowberry fruit, respectively. Microarray analysis of fly larvae feeding in apples versus snowberries revealed patterns of transcriptome-wide differential gene expression consistent with both plastic and evolved responses to the different fruit resources, most notably for detoxification-related genes such as cytochrome p450s. Transcripts exhibiting evolved expression differences between species tended to also demonstrate plastic responses to fruit environment. The observed pattern suggests that Rhagoletis larvae exhibit extensive plasticity in gene expression in response to novel fruit that may potentiate shifts to new hosts. Subsequent selection, particularly selection to suppress initially costly plastic responses, could account for the evolved expression differences observed between R. pomonella and R. zephyria, creating specialized races and new fly species. Thus, genetically based ecological adaptations generating new biodiversity may often evolve from initial plastic responses in gene expression to the challenges posed by novel environments.

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“…; Vogel et al . ). We did not observe overt enrichment of other categories such as carboxylesterases that seem to be important in other systems (e.g.…”

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 97%

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Differences in performance and transcriptome‐wide gene expression associated with Rhagoletis (Diptera: Tephritidae) larvae feeding in alternate host fruit environments

et al. 2015

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“…Although we tested several plants to identify differentially expressed genes specific to a certain host plant the larvae fed on, it may be that some of the identified genes perform multiple roles (Vogel et al, 2014b). For example, CYP6B46, initially identified as strongly up-regulated in larvae feeding on diet containing nicotine, was proposed to be linked to nicotine-uptake ortransport processes in the larval guts of Manduca (Kumar et al, 2014).…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

The plastic response of Manduca sexta to host and non-host plants

Koenig

Bretschneider

Heckel

et al. 2015

Insect Biochemistry and Molecular Biology

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“…Our transcriptomic data also provide new insights into the mode of expression of detoxification genes in generalist phloem feeders. It has been argued that detoxification genes in generalist species should show high level of plasticity upon host switches due to their crucial role in early mitigation of the new host defensive chemistry (Celorio‐Mancera et al., ; Grbić et al., ; Vogel, Musser, & Celorio‐Mancera, ; Wybouw et al., ). At the same time, these genes could be primary targets of natural selection (Celorio‐Mancera et al., ; Roy et al., ) that may fix, via genetic accommodation, adaptive changes that decrease the environmental responsiveness of the genes (Schlichting & Wund, ), leading to their environmental‐independent (constitutive) expression.…”

Section: Discussionmentioning

confidence: 99%

Species‐complex diversification and host‐plant associations in Bemisia tabaci: A plant‐defence, detoxification perspective revealed by RNA‐Seq analyses

et al. 2018

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Insect-plant associations and their role in diversification are mostly studied in specialists. Here, we aimed to identify macroevolution patterns in the relationships between generalists and their host plants that have the potential to promote diversification. We focused on the Bemisia tabaci species complex containing more than 35 cryptic species. Mechanisms for explaining this impressive diversification have focused so far on allopatric forces that assume a common, broad, host range. We conducted a literature survey which indicated that species in the complex differ in their host range, with only few showing a truly broad one. We then selected six species, representing different phylogenetic groups and documented host ranges. We tested whether differences in the species expression profiles of detoxification genes are shaped more by their phylogenetic relationships or by their ability to successfully utilize multiple hosts, including novel ones. Performance assays divided the six species into two groups of three, one showing higher performance on various hosts than the other (the lower performance group). The same grouping pattern appeared when the species were clustered according to their expression profiles. Only species placed in the lower performance group showed a tendency to lower the expression of multiple genes. Taken together, these findings bring evidence for the existence of a common detoxification "machinery," shared between species that can perform well on multiple hosts. We raise the possibility that this "machinery" might have played a passive role in the diversification of the complex, by allowing successful migration to new/novel environments, leading, in some cases, to fragmentation and speciation.

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Transcriptome Responses in Herbivorous Insects Towards Host Plant and Toxin Feeding

Cited by 74 publications

References 142 publications

Differences in performance and transcriptome‐wide gene expression associated with Rhagoletis (Diptera: Tephritidae) larvae feeding in alternate host fruit environments

Differences in performance and transcriptome‐wide gene expression associated with Rhagoletis (Diptera: Tephritidae) larvae feeding in alternate host fruit environments

The plastic response of Manduca sexta to host and non-host plants

Species‐complex diversification and host‐plant associations in Bemisia tabaci: A plant‐defence, detoxification perspective revealed by RNA‐Seq analyses

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