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66 results for “Bemisia tabaci”
Evaluation of local movement of Bemisia tabaci MEAM1 and tomato severe rugose virus transmission to tomato plants using labeled and unlabeled whiteflies
<p>The data presents the effects of two types of labels on whiteflies' behavior. Besides, it shows the flight distances at close range and ToSRV transmission.</p>
Microbiome diversity and reproductive incompatibility induced by the prevalent endosymbiont Arsenophonus in two species of African cassava Bemisia tabaci whiteflies
<p>This dataset contains data from two-part experiments described in the paper: "El Hamss, H., Ghosh, S., M. N., M., Delatte, H., & Colvin, J. (2021). Microbiome diversity and reproductive incompatibility induced by the prevalent endosymbiont Arsenophonus in two species of African cassava Bemisia tabaci whiteflies. Ecology and Evolution, 00, 1–10. https://doi.org/10.1002/ece3.840".</p> <p>The experiment investigates the effects of <em>Arsenophonus</em> on whitefly reproduction and microbiome diversity.</p> <p>In the first experiment ("crossing experiment"), the effect of <em>Arsenophonus </em>is studied on number of eggs, nymphs, males, and females on different whitefly species at intraspecies level (SSA1-SG3A+ with SSA1-SG3A-) and at interspecies level (SSA2A+ with SSA1-SG3A- and SSA1-SG3A+). <em>Arsenophonus </em>infection A+ means the presence of <em>Arsenophonus </em>in related whitefly colony, A- means the absence of <em>Arsenophonus</em>.</p> <p>In the second experiment ("microbiome diversity"), whitefly colonies of crossed parents and generated progenies were sequenced to check <i>Arsenophonus</i> threshold (number of reads) and the presence of other bacteria in those crossed whiteflies.</p> <p>The main results of this work are:</p> <p>(i) Arsenophonus did not induce reproductive incompatibility within SSA1-SG3 but reduced the number of eggs, nymphs and female ratios,</p> <p>(ii) complete RI was observed between SSA1-SG3 and SSA2 indicating the lack of gene flow between the two whitefly species,</p> <p>(iii) many new 'other bacteria' in SSA <em>B. tabaci</em> have been identified, whose role remains to be investigated.</p>
Datasets from Benhamou et al.: Cytotype conditions capability to feed and oviposit of the whitefly Bemisia tabaci (Hemiptera: Aleyrodidae) MED species on an unfavorable host plant
<p>This excel file contains all datasets generated analyzed in this study.</p>
Genetic variability, community structure, and horizontal transfer of endosymbionts among three Asia II‐Bemisia tabaci mitotypes in Pakistan
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Data from: Global population structure of a worldwide pest and virus vector: genetic diversity and population history of the Bemisia tabaci sibling species group
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Data from: Evidence for adaptive divergence of thermal responses among Bemisia tabaci populations from tropical Colombia following a recent invasion
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Microbiome diversity and reproductive incompatibility induced by the prevalent endosymbiont Arsenophonus in two species of African cassava Bemisia tabaci whiteflies
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Low genetic variability in Bemisia tabaci MEAM1 populations within farmscapes of Georgia, USA
<p>Sweetpotato whitefly, <i>Bemisia tabaci</i> Gennadius, is a serious pest of many agricultural crops worldwide. Numerous studies have examined the genetic structure of whitefly populations separated by geographical barriers; however, very few have assessed the population structure of <i>B. tabaci</i> at a farmscape level. A farmscape in this study is defined as heterogenous habitat with crop and non-crop areas spanning about 8 square kilometers. To assess the roles of farmscapes as drivers of <i>B. tabaci</i> genetic variations, thirty-five populations of the sweetpotato whitefly were collected from crop and non-crop plant species from fifteen farmscapes. Using mitochondrial COI gene sequences (mtCOI) and six nuclear microsatellite markers, the genetic diversity and genetic differentiation among collected <i>B. tabaci</i> MEAM1 populations were examined. Haplotype analysis using mtCOI sequences revealed the presence of a single <i>B. tabaci</i> MEAM1 haplotype across farmscapes of Georgia. Results from microsatellite markers further showed no significant genetic structuring among populations that corresponded to plant species or farmscapes from which they were collected. Annual whitefly population explosions and subsequent dispersal might have facilitated the presence of a single panmictic <i>B. tabaci</i> population over all sampled farmscapes in this region. </p>
Fig. 2 in Chemical constituents and toxic, repellent, and oviposition-deterrent effects of ethanol-extracted Myristica fragrans (Myristicaceae) oil on Bemisia tabaci (Hemiptera: Aleyrodidae)
Fig. 2. Contact toxicity of nutmeg essential oil to whitefly nymphs in laboratory experiments at concentrations of 10, 5, and 2.5 mg/mL. Values are the means of 8 replications. The mean numbers of nymphs were analyzed by 1-way ANOVA, with a Tukey HSD post-hoc test at a significance level of P <0.05; means topped by the same letter are not significantly different.
Fig. 1 in Chemical constituents and toxic, repellent, and oviposition-deterrent effects of ethanol-extracted Myristica fragrans (Myristicaceae) oil on Bemisia tabaci (Hemiptera: Aleyrodidae)
Fig. 1. Fumigant toxicity of nutmeg essential oil to whitefly adults in laboratory experiments at concentrations of 10, 5, and 2.5 mg/mL. Values are the means of 8 replications. The mean numbers of adults were analyzed by 1-way ANOVA, with a Tukey HSD post-hoc test at a significance level of P <0.05; means topped by the same letter are not significantly different.
Fig. 5 in Chemical constituents and toxic, repellent, and oviposition-deterrent effects of ethanol-extracted Myristica fragrans (Myristicaceae) oil on Bemisia tabaci (Hemiptera: Aleyrodidae)
Fig. 5. Greenhouse experiments with whitefly adults, testing nutmeg essential oil at concentrations of 10, 5, and 2.5 mg/mL. A. Repellency at 24 h, B. repellency at 48 h, C. oviposition at 24 h, D. oviposition at 48 h of exposure. Values are means of 8 replications. The mean numbers of adults and eggs were analyzed by 1-way ANOVA, with a Tukey HSD post-hoc test at a significance level of P <0.05; means topped by the same letter are not significantly different.
Fig. 4 in Chemical constituents and toxic, repellent, and oviposition-deterrent effects of ethanol-extracted Myristica fragrans (Myristicaceae) oil on Bemisia tabaci (Hemiptera: Aleyrodidae)
Fig. 4. Repellency of nutmeg essential oil to whitefly adults in laboratory experiments at A. 24 h, B. 48 h, and C. 72 h of exposure to concentrations of 10, 5, and 2.5 mg/mL. Values are means of 8 replications. The mean numbers of adults were compared by paired t-tests at a significance level of P ≤ 0.05. Asterisk indicates a significant difference between control and treatment.
Data from: Genome-wide analyses of the Bemisia tabaci species complex reveal contrasting patterns of admixture and complex demographic histories
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Low genetic variability in Bemisia tabaci MEAM1 populations within farmscapes of Georgia, USA
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Proteomic and transcriptomic responses to thiamethoxam in the Sweetpotato whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae)
GEO Series GSE42102. Bemisia tabaci. 2 samples. Type: Expression profiling by high throughput sequencing.
Parasitization of Bemisia tabaci by Eretmocerus mundus
GEO Series GSE11410. Bemisia tabaci. 6 samples. Type: Expression profiling by array.
Bemisia tabaci B and Q biotypes thermotolerance
GEO Series GSE17567. Bemisia tabaci. 9 samples. Type: Expression profiling by array.
Transcriptome profiling of Bemisia tabaci reveals stage-specific gene expression signatures for thiamethoxam resistance
GEO Series GSE42337. Bemisia tabaci. 18 samples. Type: Expression profiling by array.
The Immune Strategy and Stress Response of the Whitefly, Bemisia tabaci, to an Orally Delivered Bacterial Pathogen
GEO Series GSE52837. Bemisia tabaci. 3 samples. Type: Expression profiling by high throughput sequencing.
Data from: Asymmetric adaptation to indolic- and aliphatic-glucosinolates in the B and Q sibling species of Bemisia tabaci (Hemiptera: Aleyrodidae)
The role glucosinolates play in defending plants against delicate phloem feeders such as aphids and whiteflies is currently not clear as these herbivores may avoid bringing glucosinolates from the phloem sap into contact with myrosinase enzymes. Here, we investigated the effects of high levels of aliphatic- and indolic-glucosinolates on life history traits and detoxification gene expression in two sibling species, B and Q, of the whitefly Bemisia tabaci. High levels of aliphatic-glucosinolates decreased the average oviposition rate of both species, and reduced the survival and developmental rate of Q nymphs. High levels of indolic-glucosinolates decreased the oviposition rate and survival of nymphal stages of the B species and the developmental rate of both species. Molecular analyses revealed two major asymmetries between the B and Q species. First, specific GST genes (BtGST1 and BtGST2) were significantly induced during exposure to indolic-glucosinolates only in Q. This may reflect the genes putative involvement in indolic-glucosinolates detoxification and explain the species' good performance on plants accumulating indolic-glucosinolates. Second, the constitutive expression of eight of the ten detoxification genes analyzed was higher in the Q species than in the B species. Interestingly, four of these genes were induced in B in response to high levels of glucosinolates. It seems, therefore, that the B and Q species differ in their "optimal defense strategy". B utilizes inducible defenses which are profitable if the probability of experiencing the stress is small and its severity is low, while Q invests significant resources in being always "ready" for a challenge.
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Annotated Behaviour and Observability Dataset (ABODe)
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