Nutritional phenotype underlines the performance trade-offs of Drosophila suzukii on different fruit diets

Current Research in Insect Science, Journal Year: 2021, Volume and Issue: 2, P. 100026 - 100026

Published: Dec. 16, 2021

Animals confined to different dietary conditions often exhibit distinct, sometimes contrasting, nutritional phenotypes and performance outcomes. This is especially true for many oviparous insects whose developmental diets can vary depending on the mother's egg-laying site selection. Much research relationship between preference in has focused larval success, which overlooks complexities of effects diverse parameters across life stages potential trade-offs those parameters. Furthermore, connection diet-induced phenotype not well understood. Here, using Drosophila suzukii, we quantify multiple indices larvae adults reared five host fruits protein-to-sugar ratios (P:S) have previously been shown differ attractiveness fly foraging oviposition. Our results demonstrate robust diet-specific trade-offs, with fecundity, development time, pupal size, adult weight superior flies high P:S raspberry diet, contrast low grape diet; but reverse was found terms starvation resistance. Notably, contrasting are readily explained by phenotype, reflected protein energy (glucose lipid) contents two fruits. Together, our provide experimental evidence metabolic plasticity D. suzukii possibility as a marker diet

Language: Английский

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Mind the Wound!—Fruit Injury Ranks Higher than, and Interacts with, Heterospecific Cues for Drosophila suzukii Oviposition

Insects, Journal Year: 2021, Volume and Issue: 12(5), P. 424 - 424

Published: May 9, 2021

Drosophila suzukii is a globally distributed insect that infests many economically important fruit varieties by ovipositing into ripening fruits. The mechanisms underlying host selection, in particular the fly’s preference for fresh, intact, and competitor-free fruits, are only partially understood. We hypothesize D. females use cues of different properties to rank potential fruits hierarchical manner. created four naturally occurring (blueberries) categories: (1) intact; (2) artificially wounded; (3) wounded + containing eggs species; (4) intact exposed melanogaster. Individual were offered several two-way combinations categories. Females showed robust oviposition vs. infested which was even stronger compared intact–wounded combination. preferred blueberries; however, they over blueberries. This implies suzukii, determined heterospecific (possibly fecal matter components) an unknown “wounding factor”

Language: Английский

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Bacillus thuringiensisbioinsecticide influencesDrosophilaoviposition decision

Royal Society Open Science, Journal Year: 2023, Volume and Issue: 10(8)

Published: Aug. 1, 2023

Behavioural avoidance has obvious benefits for animals facing environmental stressors such as pathogen-contaminated foods. Most current bioinsecticides are based on the and opportunistic bacterium

Language: Английский

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Microbiota-mediated competition between Drosophila species

Microbiome, Journal Year: 2023, Volume and Issue: 11(1)

Published: Sept. 7, 2023

The influence of microbiota in ecological interactions, and particular competition, is poorly known. We studied competition between two insect species, the invasive pest Drosophila suzukii model melanogaster, whose larval niches overlap ripe, but not rotten, fruit.We discovered D. females prevent costly interspecific by avoiding oviposition on substrates previously visited melanogaster. More precisely, melanogaster association with gut bacteria genus Lactobacillus triggered avoidance. However, avoidance behavior condition-dependent, that themselves carry stop sites adaptive significance cues from competitor's was revealed experimentally reproducing in-fruit competition: reduced survival larvae only occurred if competitor had its normal microbiota.This study establishes microbiotas as potent mediators reveals a central role for context-dependent behaviors under bacterial influence. Video Abstract.

Language: Английский

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Female oviposition decisions are influenced by the microbial environment

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: July 4, 2024

Abstract In ovipositing animals, egg placement decisions can be key determinants of offspring survival. One oviposition strategy reported across taxa is clustering, whereby a female lays multiple eggs next to one another or the other females. The fitness benefits especially in mixed maternity clusters, are unknown. some species, mothers provision with diffusible defence compounds, such as antimicrobials, raising possibility public good arising from clustering. Here we report that Drosophila melanogaster females frequently lay clusters. We tested two hypotheses for potential drivers this behaviour: (i) microbial environment affects fecundity and groups D. females; (ii) exhibit antimicrobial activity. results partially supported first hypothesis. Females exposed environmental microbes naturally colonised substrates absence preservatives reduced their levels but did not significantly alter contrast, presence commensal (fly-associated) affect oviposition. second hypothesis was supported. There no evidence activity, either whole soluble surface material extracted them. conclusion, while there shaped by opportunity share provides cues use make sophisticated on placement.

Language: Английский

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Shaping the environment – Drosophila suzukii larvae construct their own niche

iScience, Journal Year: 2024, Volume and Issue: 27(12), P. 111341 - 111341

Published: Nov. 8, 2024

Language: Английский

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Live Drosophila melanogaster Larvae Deter Oviposition by Drosophila suzukii

Insects, Journal Year: 2022, Volume and Issue: 13(8), P. 688 - 688

Published: July 29, 2022

The worldwide invasive insect pest, Drosophila suzukii Matsumura (spotted-wing Drosophila), lays eggs in soft and stone fruit before harvest. Hatched larvae cause collapse significant economic losses. Current control methods rely primarily on foliar insecticide applications, which are not sustainable long-term solutions due to regulatory restrictions the risk of resistance developing. We showed that D. were deterred from laying artificial media previously visited by its sister species—Drosophila melanogaster. In current study, laboratory choice test experiments conducted identify melanogaster life stage (eggs, larvae, or adult) oviposition. demonstrated presence live egg-laying consistently cuticular hydrocarbons (CHCs) examined as candidate for oviposition deterrent. CHCs larval adult analyzed. both species, composition was similar adults, although quantities present much lower. Furthermore, CHC profiles two species markedly different. However, when assayed deterrents experiment, extracts did deter suzukii.

Language: Английский

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Drosophila suzukii energetic pathways are differently modulated by nutritional geometry in males and females

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Dec. 7, 2022

Abstract As a polyphagous pest, Drosophila suzukii has variety of host fruits available for feeding and oviposition, but how the nutritional geometry different hosts influences its metabolism is still poorly understood. This work aimed to evaluate D. metabolic transcriptional pathways are influenced by on fruits, sex these responses. Adult flies were allowed feed five fruit-based media. Lipids, glucose, glycogen, energy pathways-associated gene expression, quantified. Females showed an energetic easily adaptable food’s characteristics; in contrast, males’ was particularly food, predominantly those fed raspberry media who changes glucose levels expression genes associated with pathways, suggesting activation gluconeogenesis trehaloneogenesis as result deficiency. Here we present novel insight into ’s modulated depending fruits’ sex. While females high adaptability their diet, males more feeding-sensitive. These findings might be used not only control this pest population better advise producers invest less suitable based hosts’ geometry.

Language: Английский

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Trichomes on female reproductive tract: rapid diversification and underlying gene regulatory network in Drosophila suzukii and its related species

BMC Ecology and Evolution, Journal Year: 2022, Volume and Issue: 22(1)

Published: July 28, 2022

The ovipositors of some insects are external female genitalia, which have their primary function to deliver eggs. Drosophila suzukii and its sibling species D. subpulchrella known acquired highly sclerotized enlarged upon shifts in oviposition sites from rotting ripening fruits. Inside the ovipositor plates, there scale-like polarized protrusions termed "oviprovector scales" that likely aid mechanical movement size spatial distribution scales need be rearranged following divergence ovipositors. In this study, we examined features oviprovector closely related species. We also investigated whether single-cell comprised F-actin under same conserved gene regulatory network as well-characterized trichomes on larval cuticular surface.

Language: Английский

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Effect of acetic acid bacteria colonization on oviposition and feeding site choice in

PubMed, Journal Year: 2024, Volume and Issue: 2024

Published: Jan. 1, 2024

Unlike many species of

Language: Английский

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