The invasive pest Drosophila suzukii uses trans-generational medication to resist parasitoid attack

Poyet, Mathilde; Eslin, Patrice; Chabrerie, Olivier; Prudhomme, Sophie; Desouhant, Emmanuel; Gibert, Patricia

doi:10.1038/srep43696

Cited by 26 publications

(18 citation statements)

References 42 publications

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“…Differences in biotic and abiotic environmental conditions can influence host resistance levels. By laying eggs in fruits rich in atropine, an entomotoxic alkaloid present in plants of the Solanaceae family , D. suzukii can enhance resistance to parasitoids via transgenerational medication (Poyet et al., ). Other abiotic factors that affect the immune response in drosophilids are temperature (Fellowes, Kraaijeveld, & Godfray, ; Fleury et al., ), and host diet (Anagnostou, LeGrand, & Rohlfs, ; Ayres & Schneider, ; Howick & Lazzaro, ; Meshrif, Rohlfs, & Roeder, ).…”

Section: Step 3: Understanding Variation In D Suzukii–parasitoid Intmentioning

confidence: 99%

Optimization of native biocontrol agents, with parasitoids of the invasive pest Drosophila suzukii as an example

Kruitwagen

Beukeboom

Wertheim

2018

Evolutionary Applications

115

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The development of biological control methods for exotic invasive pest species has become more challenging during the last decade. Compared to indigenous natural enemies, species from the pest area of origin are often more efficient due to their long coevolutionary history with the pest. The import of these well‐adapted exotic species, however, has become restricted under the Nagoya Protocol on Access and Benefit Sharing, reducing the number of available biocontrol candidates. Finding new agents and ways to improve important traits for control agents (“biocontrol traits”) is therefore of crucial importance. Here, we demonstrate the potential of a surprisingly under‐rated method for improvement of biocontrol: the exploitation of intraspecific variation in biocontrol traits, for example, by selective breeding. We propose a four‐step approach to investigate the potential of this method: investigation of the amount of (a) inter‐ and (b) intraspecific variation for biocontrol traits, (c) determination of the environmental and genetic factors shaping this variation, and (d) exploitation of this variation in breeding programs. We illustrate this approach with a case study on parasitoids of Drosophila suzukii, a highly invasive pest species in Europe and North America. We review all known parasitoids of D. suzukii and find large variation among and within species in their ability to kill this fly. We then consider which genetic and environmental factors shape the interaction between D. suzukii and its parasitoids to explain this variation. Insight into the causes of variation informs us on how and to what extent candidate agents can be improved. Moreover, it aids in predicting the effectiveness of the agent upon release and provides insight into the selective forces that are limiting the adaptation of indigenous species to the new pest. We use this knowledge to give future research directions for the development of selective breeding methods for biocontrol agents.

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Section: Step 3: Understanding Variation In D Suzukii–parasitoid Intmentioning

confidence: 99%

Optimization of native biocontrol agents, with parasitoids of the invasive pest Drosophila suzukii as an example

Kruitwagen

Beukeboom

Wertheim

2018

Evolutionary Applications

115

View full text Add to dashboard Cite

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“…This is the case of the non-native fruit fly Drosophila suzukii which is able to feed and use the toxic compounds of native plants present in its invasive range (Poyet et al, 2015). This drosophila lays its eggs preferentially in a toxic substrate (containing atropine, a compound naturally present in the fruits of the native plant Atropa belladonna) in the presence of parasitoids (Poyet et al, 2017). Interestingly, the presence of atropine in the developmental medium confers a better resistance of Drosophila offspring against parasitoids, thus revealing the existence of a form of transgenerational medication in this species.…”

Section: (5) Expansion Of Non-native Populations Associated With Novementioning

confidence: 99%

Biological Invasion Theories: Merging Perspectives from Population, Community and Ecosystem Scales

Chabrerie¹,

Massol²,

Facon³

et al. 2019

Preprint

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Biological invasions have reached an unprecedented level and the number of introduced species is still increasing worldwide. Despite major advances in invasion science, the determinants of success of introduced species, the magnitude and dimensions of their impact, and the mechanisms sustaining successful invasions are still debated. Empirical studies show divergent impacts of non-native populations on ecosystems and contrasting effects of biotic and abiotic factors on the dynamics of non-native populations; this is hindering the emergence of a unified theory of biological invasions. We propose a synthesis that merges perspectives from population, community, and ecosystem levels. Along a timeline of ecosystem transformation driven by non-native species, from historical to human-modified ecosystems, we order invasion concepts and theories to clarify their chaining and relevance during each step of the invasion process. This temporal sorting of invasion concepts shows that each concept is relevant at a specific stage of the invasion. Concepts and empirical findings on non-native species may appear contradictory. However, we suggest that, when mapped onto an invasion timeline, they may be combined in a complementary way. An overall scheme is proposed to summarise the theoretical dynamics of ecosystems subjected to invasions. For any given case study, this framework provides a guide through the maze of theories and should help choose the appropriate concepts according to the stage of invasion.

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“…A more plausible hypothesis is that the establishment and successful invasion of D. suzukii is due not to its thermal plasticity but to other factors, such as the 'enemy release hypothesis' (Keane and Crawley, 2002) or the 'vacant trophic niche' (MacArthur, 1970;Behmer and Joern, 2008). Indeed, D. suzukii is exposed to a low level of natural enemies in the areas it has invaded (Kacsoh and Schlenke, 2012;Chabert et al, 2012;Poyet et al, 2013Poyet et al, , 2017, and it can exploit fruits at a stage of maturity where there are few competitors (Lee et al, 2011;Atallah et al, 2014;Keesey et al, 2015). Its main hosts, which are healthy fruits, seem to be exploited by few resident species, thus leaving an omnipresent trophic resource that is suitable for the survival, reproduction and dispersal of this alien species.…”

Section: Ds 30°cmentioning

confidence: 99%

Phenotypic plasticity in the invasive pest Drosophila suzukii: activity rhythms and gene expression in response to temperature

Plantamp

Henri

Andrieux

et al. 2019

Journal of Experimental Biology

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Phenotypic plasticity may contribute to the invasive success of an alien species in a new environment. A highly plastic species may survive and reproduce in more diverse environments, thereby supporting establishment and colonization. We focused on plasticity in the circadian rhythm of activity, which can favour species coexistence in invasion, for the invasive species Drosophila suzukii, which is expected to be a weaker direct competitor than other Drosophila species of the resident community. We compared the circadian rhythms of the locomotor activity in adults and the expression of clock genes in response to temperature in the invasive D. suzukii and the resident Drosophila melanogaster. We showed that D. suzukii is active in a narrower range of temperatures than D. melanogaster and that the activities of the two species overlap during the day, regardless of the temperature. Both species are diurnal and exhibit rhythmic activity at dawn and dusk, with a much lower activity at dawn for D. suzukii females. Our results show that the timeless and clock genes are good candidates to explain the plastic response that is observed in relation to temperature. Overall, our results suggest that thermal phenotypic plasticity in D. suzukii activity is not sufficient to explain the invasive success of D. suzukii and call for testing other hypotheses, such as the release of competitors and/or predators.

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The invasive pest Drosophila suzukii uses trans-generational medication to resist parasitoid attack

Cited by 26 publications

References 42 publications

Optimization of native biocontrol agents, with parasitoids of the invasive pest Drosophila suzukii as an example

Optimization of native biocontrol agents, with parasitoids of the invasive pest Drosophila suzukii as an example

Biological Invasion Theories: Merging Perspectives from Population, Community and Ecosystem Scales

Phenotypic plasticity in the invasive pest Drosophila suzukii: activity rhythms and gene expression in response to temperature

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