Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
201
datasets available to search
ShareScore release 0.9.0
Dataset results
201 results for “Spodoptera”
FIGS 38–50 in Scuttle flies (Diptera: Phoridae) reared from Spodoptera exigua (Hübner, 1808) (Lepidoptera: Noctuidae) in Iran
FIGS 38–50. Megaselia tubuslonga sp. n. male. 38, frons; 39, postpedicels, palps and proboscis; 40, postpedicel with SPS vesicles; 41, proboscis from below; 42, side of thorax; 43, abdomen; 44-45 hypopygium; 46, front tibia and tarsus; 47, mid tibia and tarsal segments 1 and 2; 48, hind femur; 49, wing, 50, axillary ridge of wing.
FIGS 17–26 in Scuttle flies (Diptera: Phoridae) reared from Spodoptera exigua (Hübner, 1808) (Lepidoptera: Noctuidae) in Iran
FIGS 17–26. Megaselia necalbiclava sp. n. male. 17, frons; 18, postpedicels, palps and proboscis; 19, side of thorax; 20, abdomen; 21-22, hyppygium; 23, front tarsus; 24, mid tibia and basitarsus; 26, wing.
FIGS 1–11 in Scuttle flies (Diptera: Phoridae) reared from Spodoptera exigua (Hübner, 1808) (Lepidoptera: Noctuidae) in Iran
FIGS 1–11. Megaselia exspodoptera sp. n. male. 1, frons and postpedicels; 2, postpedicels, palps and proboscis; 3, side of thorax; 4. Abdomen; 5-7, hypopygium,; 8, front tarsus; 9, mid tibia and basitarsus; 10. Hind femur; 11, wing. Figs 12–15. Megaselia exspodoptera sp. n. female. 12, abdominal tergites 4-6; 13, tergite 7; 14, spermatheca; 15, sternite 6. Fig 16. Hypopygium of Megaselia microcurtineura Disney.
Plant growth-promoting rhizobacteria modulate induced corn defense against Spodoptera litura (Lepidoptera: Noctuidae)
<p>Common cutworm, <em>Spodoptera litura</em> is an important pest of corn causing significant crop yield loss. Synthetic insecticides have mostly been used to combat this pest, raising human and environmental health concerns. Plant-growth promoting rhizobacteria (PGPR) could compensate for or augment the harmful effects of agrochemicals. Herein, we aimed to assess whether PGPR-induced defenses in corn plants impact the host-plant selection behavior of <em>S. litura</em>. Headspace volatile organic compounds (VOCs) were analyzed using Gas chromatography-mass spectrometry (GC-MS). Larvae-fed inoculated corn exhibited lower weights and RGR than non-inoculated plants. Under choice experiments, PGPR-treated plants significantly reduced percentage leaf damage area and oviposition rate compared to untreated plants. VOC ratio emission varied significantly between control and PGPR treatments, which, in part, explains feeding and oviposition deterrence in PGPR-treated plants. The results demonstrate that PGPR inoculation can enhance corn resistance to <em>S. litura</em>, making it a promising candidate for crop protection strategies.</p>
Supplementary material 1 from: Early R, González-Moreno P, Murphy ST, Day R (2018) Forecasting the global extent of invasion of the cereal pest Spodoptera frugiperda, the fall armyworm. NeoBiota 40: 25-50. https://doi.org/10.3897/neobiota.40.28165
Supplementary material : Explanation note: Table S1. Summary of evidence for fall armyworm developmental and population responses to the environment extracted from literature sources. Figure S1. Effect of different sub-sampling proportions and pseudo-absence selection diameters on model predictions (maps). Figure S2. Effect of different sub-sampling proportions and pseudo-absence selection diameters on Balanced Accuracy. Figure S3. Histograms of each environmental variable in 10 arc-minute grid-cells from which the fall armyworm is recorded. Figure S4. Multivariate Environmental Similarity Surface analysis. Figure S5. Empirically measured environmental effects on fall armyworm life cycle. Figure S6. Trade and passenger air transportation within Africa.
Data from: Patterns of genomic and allochronic strain divergence in the fall armyworm, Spodoptera frugiperda
<p>Speciation is the process through which reproductive isolation develops between distinct populations. Because this process takes time, speciation studies often necessarily examine populations within a species that are at various stages of divergence. The fall armyworm, <em>Spodoptera frugiperda </em>(J.E.Smith), is comprised of two strains (R=Rice & C=Corn) that serve as a novel system to explore population divergence in sympatry. Here, we use ddRADSeq data to show that fall armyworm strains in the field are largely genetically distinct, but some interstrain hybridization occurs. Although we detected F1 hybrids of both R- and C-strain maternal origin, only hybrids with R-strain mtDNA were found to contribute to subsequent generations, possibly indicating a unidirectional barrier to gene flow. Although these strains have been previously defined as 'host plant-associated,' we recovered an equal proportion of R- and C-strain individuals in fields dominated by C-strain host plants. As an alternative to host associated divergence, we tested the hypothesis that differences in nightly activity patterns could account for reproductive isolation by genotyping temporally-collected moths. Our data indicates that strains exhibit a significant shift in the timing of their nightly activities in the field. This divergence in phenology creates a prezygotic reproductive barrier that likely maintains the genetic isolation between strains. Thus, we conclude that it may be ecologically inaccurate to refer to the C- and R- strain as 'host-associated' and they should more appropriately be considered 'allochronic strains.'</p>
Effects of food plants on life-history traits of the newly invasive fall armyworm Spodoptera frugiperda
<p><strong>Background:</strong>The fall armyworm (FAW) <em>Spodoptera frugiperda</em> (J. E. Smith) (Lepidoptera; Noctuidae) has invaded Jiangxi Province, Southeast China for the past three years. Although the FAW displays a wide host range, its main host plants in Jiangxi Province is field corn. Understanding the population dynamics of the FAW on different host plants is critical for developing an appropriate control strategy.</p> <p><strong>Objectives: </strong>This study investigated the effects of food plants (corn, peanut, soybean and sugarcane) on life-history traits of FAW and tested the leaf contents of the total flavonoids, reducing sugars, sucrose and C/N ratio of these host plants.</p> <p><strong>Results: </strong>We found that the FAW fed on corn leaves exhibited significantly shorter larval and pupal development times, larger body weight, higher growth rate, lower weight loss, smaller sexual size dimorphism, shorter preoviposition period and higher fecundity than those fed on peanut, soybean and sugarcane leaves. The FAW showed a protogyny phenomenon because the pupal development stage was significantly longer in males than females. Food plants changed the relationships between larval development time and pupal weight and between fecundity and longevity. The corn leaves showed significantly higher contents of reducing sugars and sucrose, lower content of the total flavonoids and a moderate C/N ratio compared with the other leaves, suggesting that the corn leaf tissues are more nutritious.</p> <p><strong>Conclusions: </strong>Our results provide the most comprehensive information about the life-history traits of this newly invasive pest. These findings may help us understand why the FAW mainly infests corn plants and may be critical for the development of strategies to predict infestation levels.</p>
Development time and fecundity of Spodoptera frugiperda fed on different host plant
<p>Data set of development time and fecundity of Spodoptera frugiperda fed on different host plant in Indonesia</p>
Fitness and cold tolerance of Spodoptera frugiperda fed on corn and two winter crops(Original data)
<p>Fall armyworm (FAW) <em>Spodoptera frugiperda</em> is a major migratory and polyphagous pest. Overwintering, migrating and colonizing characters of FAW are closely related to vegetation and host adaptation. In this study, oviposition preference, feeding preference, fitness and cold tolerance of FAW fed on spring & summer crop (corn) and two winter crops (cabbage, <em>Brassica campestris </em>and rape,<em> B. napus</em>). We observed that FAW could complete their life cycle by feeding cabbage and rape, although fitness was not as good as corn. FAW fed on cabbage had higher survival, pupal weight, and host suitability index than rape while larvae preferred to feed on rape leaves and females preferred to lay eggs on rape plants. In addition, FAW larvae fed on cabbage had the shortest recovery time from chill coma compared to corn and rape, indicating that cold tolerance of FAW larvae was improved by feeding on cabbage. Consequently, cabbage could be an ideal host for FAW which needed to survive and reproduction in winter. These results improve our understanding of host selection and adaption of FAW, as well as lay a foundation for the prediction of FAW overwintering.</p>
The new association between the invasive pest Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) and local parasitoids in Special Region Yogyakarta, Indonesia
<p>Database of parasitoid associated with FAW Spodoptera frugiperda in Yogyakarta, Indonesia</p>
Chemotactic responses and parasitism of Trichogramma pretiosum after successive generations in Spodoptera frugiperda.
<p>Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) is an important parasitoid of lepidopteran pests. Its parasitism success is related to its foraging behavior, mediated by kairomones from its hosts. We aimed to evaluate the chemotactic responses and parasitism of T. pretiosum from Ephestia kuehniella (Zeller) (Lepidoptera: Pyralidae) eggs as well as the parasitoid maintained for three generations in Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) eggs. Chemotactic responses of T. pretiosum from both hosts were evaluated in a dual choice olfactometer. Females were submitted to a choice between washed vs. unwashed eggs of E. kuehniella or S. frugiperda, as well as to unwashed eggs of both hosts. Egg extracts of both hosts were also contrasted with hexane and with each other. Parasitism of T. pretiosum exposed to eggs of the two species was also evaluated. Females from E. kuehniella were more attracted to odors from eggs of this host whenever it was present. Third generation parasitoids from S. frugiperda eggs were more attracted to eggs and egg extract of S. frugiperda than to those from E. kuehniella. The highest number of parasitized eggs and emerged parasitoids in S. frugiperda was observed in parasitoids coming from the third generation in this host. Therefore, imaginal conditioning could be an alternative to be considered for T. pretiosum learning before releasing, possibly optimizing its search and parasitism process in S. frugiperda eggs.</p>
Data from: Switching among natal and auxiliary hosts increases vulnerability of Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae) to insecticides
Open the record for dataset details and reuse information.
Plant growth-promoting rhizobacteria modulate induced corn defense against Spodoptera litura (Lepidoptera: Noctuidae)
Open the record for dataset details and reuse information.
Data from: A Z-linked sterility locus causes sexual abstinence in hybrid females and facilitates speciation in Spodoptera frugiperda
Open the record for dataset details and reuse information.
Data from: Patterns of genomic and allochronic strain divergence in the fall armyworm, Spodoptera frugiperda
Open the record for dataset details and reuse information.
Gut bacterial community structure shifts in successive generations of Spodoptera exigua under short-term thermal stress
Open the record for dataset details and reuse information.
Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa
Open the record for dataset details and reuse information.
Modulation of DNA methyltransferases (DNMTs) in Spodoptera frugiperda (Sf9) cells following AcMNPV infection and its effects on the virus-cell interaction
Open the record for dataset details and reuse information.
Enhancement of Bacillus thuringiensis toxicity by feeding Spodoptera littoralis larvae with bacteria expressing immune suppressive dsRNA
<p><strong>Figure 1C</strong></p> <p>Calibration curves used for qRT-PCR absolute quantification of <em>Sl 102</em> and <em>GFP</em> dsRNA present in <em>E. coli</em> suspensions used in the bioassays</p> <p> </p> <p><strong>Figure 2</strong></p> <p>Transcript levels of <em>Sl 102</em> gene in <em>S. littoralis</em> 4th instar larvae orally treated for 3 days with dsRNA. The <em>Sl</em> <em>102</em> gene was down-regulated upon ingestion of <em>Sl</em> <em>102</em> dsRNA administered by oral gavage, both in the case of dsRNA synthesized in vitro (<em>Sl</em> <em>102</em> dsRNA-synt) and suspensions of sonicated bacteria expressing <em>Sl</em> <em>102</em> dsRNA (<em>Sl</em> <em>102</em> dsRNA-bac). Delivery with artificial diet showed a silencing response that was dose-dependent and more pronounced when bacteria were used as delivery vectors. <em>GFP</em> dsRNA synthesized in vitro and bacteria expressing <em>GFP</em> dsRNA were used in control experiments. The values reported are the mean ± standard errors (*<em>P </em>< 0.0001, Student’s <em>t</em> test)</p> <p><strong>Figure 3</strong></p> <p>Encapsulation assay in <em>S. littoralis</em> 4th larvae treated for 3 days with <em>Sl 102</em> dsRNA synthesized in vitro (<em>Sl</em> <em>102</em> dsRNA-synt) or transformed HT115 <em>E. coli</em> expressing <em>Sl</em> <em>102</em> dsRNA (<em>Sl</em> <em>102</em> dsRNA-bac). Chromatography beads injected into the body cavity of control larvae were encapsulated and melanized (<strong>a</strong>). On the contrary, the efficiency of encapsulation was lower in silenced larvae, independently from the dsRNA administration method (gavage or with artificial diet) (<strong>b</strong>). The encapsulation index was affected by oral delivery method and, in the case of oral administration on artificial diet, by dsRNA quantity. <em>GFP</em> dsRNA synthesized in vitro and bacteria expressing <em>GFP</em> dsRNA were used in control experiments. The values reported are the mean ± standard errors (*<em>P </em>< 0.0001, Student’s <em>t</em> test)</p> <p><strong>Figure 4</strong></p> <p>Bioassay with <em>S. littoralis</em> 4th instar larvae exposed to dsRNA before <em>Bt</em> treatment. Newly molted larvae were treated for 3 days with artificial diet layered with transformed HT115 <em>E. coli</em> expressing <em>Sl</em> <em>102</em> dsRNA (<em>Sl</em> <em>102</em> dsRNA-Bac, corresponding to 200 ng of dsRNA) and then with 12 µg/cm<sup>2</sup> of Xentari™ for 3 more days (see “<a href="https://link.springer.com/article/10.1007/s10340-019-01140-6#Sec3">Materials and methods</a>” section for experimental details). Survival was monitored until day 8 (<strong>a</strong>), when the weight was assessed on the surviving experimental larvae (<strong>b</strong>). Bacteria expressing <em>GFP</em> dsRNA were used in control experiments. The timing of the treatments is indicated with arrows. The values reported are the mean ± standard errors (in <strong>a</strong> *<em>P </em>< 0.0001 based on log-rank test; in <strong>b</strong> different letters denote statistical difference based on Kruskal–Wallis test, followed by Dunn’s multiple-comparison post hoc test)</p> <p> </p> <p><strong>Fig. 5</strong></p> <p>Bioassay with <em>S. littoralis</em> 4th instar larvae simultaneously exposed to dsRNA and <em>Bt</em>. Newly molted larvae were treated for 3 days with artificial diet layered with transformed HT115 <em>E. coli</em> expressing <em>Sl</em> <em>102</em> dsRNA (<em>Sl</em> <em>102</em> dsRNA-Bac, corresponding to 200 ng of dsRNA) and with 9 µg/cm<sup>2</sup> of Xentari (see “<a href="https://link.springer.com/article/10.1007/s10340-019-01140-6#Sec3">Materials and methods</a>” section for experimental details). Survival was monitored until day 8 (<strong>a</strong>) when the weight was assessed on the surviving experimental larvae (<strong>b</strong>). Bacteria expressing <em>GFP</em> dsRNA were used in control experiments. The timing of the treatments is indicated by arrows The values reported are the mean ± standard errors (in <strong>a</strong> **<em>P </em>< 0.0001 and *<em>P </em>< 0.0046 based on log-rank test; in <strong>b</strong> different letters denote statistical difference based on Kruskal–Wallis, followed by Dunn’s multiple comparisons post hoc test)</p> <p><strong>Fig. 6</strong></p> <p>Bioassays with <em>S. littoralis</em> 5th instar larvae simultaneously exposed to dsRNA and <em>Bt</em>. Newly molted larvae were treated for 3 days with artificial diet layered with transformed HT115 <em>E. coli</em> expressing <em>Sl</em> <em>102</em> dsRNA (<em>Sl</em> <em>102</em> dsRNA-Bac, corresponding to 200 ng of dsRNA) and with 12 µg/cm<sup>2</sup> of Xentari (see “<a href="https://link.springer.com/article/10.1007/s10340-019-01140-6#Sec3">Materials and methods</a>” section for experimental details). Survival was monitored until day 8 (<strong>a</strong>), when the weight was assessed on the surviving experimental larvae (<strong>b</strong>). Bacteria expressing <em>GFP</em> dsRNA were used in control experiments. The timing of the treatments is indicated by arrows. The values reported are the mean ± standard errors (in <strong>a</strong> *<em>P </em>< 0.0001 based on log-rank test; in <strong>b</strong> different letters denote statistical difference based on Kruskal–Wallis test followed by Dunn’s multiple-comparison post hoc test)</p> <p> </p>
Influence of diet, sex and viral infections on the gut microbiota composition of Spodoptera exigua caterpillars
<p>Gut microbiota plays essential roles in very diverse processes in all organisms, including insects. Previous studies have shown that changes in gut bacterial composition of caterpillars affects to the insecticidal properties of entomopathogens, opening the possibility of improving the use of entomopathogens in pest control by manipulation of the host microbiota To do that, a better characterization of the host gut microbiota and its interaction with other microbial agents is required. Here we have analysed the gut microbiota of larvae from the major pest Spodoptera exigua under different conditions, and the results have revealed a high variability among individuals and a major influence of the environmental bacteria. These observations suggest the lack of a resident microbiota as it was already claimed for other species of caterpillars. In addition, insects naturally infected with viruses showed a different microbiota composition in comparison with virus-free insects and few taxa specifically associated to the infection have been identified.<a> </a></p>
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.