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359 results for “Drosophila species”
FIG. 1 in Revision of the Drosophila bromeliae Species Group (Diptera: Drosophilidae): Central American, Caribbean, and Andean Species
FIG. 1. Habitus of exemplar species in the bromeliae group. A. Drosophila manni, n. sp. B. D. penispina, n. sp. C. D. bromeliae Sturtevant. D. D. mexiflora, n. sp.
FIG. 2 in Revision of the Drosophila bromeliae Species Group (Diptera: Drosophilidae): Central American, Caribbean, and Andean Species
FIG. 2. Heads of exemplar species in the bromeliae group. A. Drosophila penispina, n. sp. (specimen DBG21) B. D. billheedi, n. sp. (DBG 2, holotype). C. D. stylipennis, n. sp. (DBG 12). D. D. mexiflora, n. sp. (DBG 41). Note supernumery left proclinate seta. E. D. manni, n. sp. (DBG 70). F. D. bromeliae Sturtevant (DBG 10). Numbers prefaced by DBG refer to specimens that were dissected.
FIG. 14 in Revision of the Drosophila bromeliae Species Group (Diptera: Drosophilidae): Central American, Caribbean, and Andean Species
FIG. 14. Male genitalia of Drosophila mexiflora Grimaldi, n. sp., showing variation in hypandrium (A, C, E) and surstylus + ventral lobe of epandrium (B, D. F).
FIG. 10 in Revision of the Drosophila bromeliae Species Group (Diptera: Drosophilidae): Central American, Caribbean, and Andean Species
FIG. 10. Variation in the male genitalia of D. bromeliae Sturtevant. A–F. Hypandrium, all to same scale. G–M. Surstylus and ventral lobe of epandrium, all to same scale.
FIG. 3 in Revision of the Drosophila bromeliae Species Group (Diptera: Drosophilidae): Central American, Caribbean, and Andean Species
FIG. 3. Scanning electron micrographs of adult structures of Drosophila bromeliae. A. Face (arrow indicates fine setae on inner surface of pedicel). B. Detail of eye facets and interfacetal setulae. C. Labellum, folded closed. D. Posterior portion of thorax. E. Detail of D. F. Male terminalia. G. Female terminalia. Abbreviations: prso, prescutellar setae.
FIG. 19 in Revision of the Drosophila bromeliae Species Group (Diptera: Drosophilidae): Central American, Caribbean, and Andean Species
FIG. 19. Male genitalia of two closely related species: (A–C) Drosophila manni, n. sp. (DBG 55) and (D–F) Drosophila paramanni, n. sp. (DBG 86). A. Lateral view of aedeagus, aedeagal apodeme, postgonite, and full ventral view of distiphallus of D. manni. B. Surstylus and ventral lobe of epandrium. C. Hypandrium. D. Lateral view of male genitalia, with full ventral view of distiphallus. E. Surstylus and ventral lobe of epandrium. F. Hypandrium.
FIG. 17 in Revision of the Drosophila bromeliae Species Group (Diptera: Drosophilidae): Central American, Caribbean, and Andean Species
FIG. 17. Male genitalia of Drosophila penispina, n. sp. A–D. Variation in lateral view of aedeagus, aedeagal apodeme, and gonopod, as well as full ventral view of distiphallus; A, axes indicate aedeagal angle. E–G. Hypandrium. H–J. Surstylus and ventral lobe of epandrium.
FIG. 22 in Revision of the Drosophila bromeliae Species Group (Diptera: Drosophilidae): Central American, Caribbean, and Andean Species
FIG. 22. Male genitalia of Drosophila starki Grimaldi, n. sp. (DBG 59). A. Lateral view of aedeagus, aedeagal apodeme, and gonopod. B. Full ventral view of distiphallus. C. Surstylus and ventral lobe of epandrium. D. Hypandrium.
Effects of mycotoxin treatment on fly survival, development time, thorax length, fecundity, and longevity in four mycophagous Drosophila species
<p>Many mycophagous Drosophila species have adapted to tolerate high concentrations of mycotoxins, an ability not reported in any other eukaryotes. Although an association between mycophagy and mycotoxin tolerance has been established in many Drosophila species, the genetic mechanisms of the tolerance are unknown. This study presents the inter- and intraspecific variation in the mycotoxin tolerance trait. We studied the mycotoxin tolerance in four Drosophila species from four separate clades within the immigrans-tripunctata radiation from two distinct locations. The effect of mycotoxin treatment on 20 isofemale lines per species was studied using seven gross phenotypes: survival to pupation, survival to eclosion, development time to pupation and eclosion, thorax length, fecundity, and longevity. We observed interspecific variation among four species, with D. falleni being the most tolerant, followed by D. recens, D. neotestacea, and D. tripunctata, in that order. The results also revealed geographical variation and intraspecific genetic variation in mycotoxin tolerance. This report provides the foundation for further delineating the genetic mechanisms of the mycotoxin tolerance trait.</p>
Genomes of cactophilic Drosophila species and their respective gene and TE annotations + QC data
<p>The genomes deposited in this repository refers to the data used in the study entitled "Transposable elements contribute to the evolution of host shift-related genes in cactophilic<em> Drosophila</em> species", from Oliveira D. S., Larue A., Nunes W. V. B., Sabot F., Bodelón A., García Guerreiro M. P., Vieira C., Carareto C. M. A.</p> <p>Each genome has its following assembly (fasta), gene annotation (gff), and TE annotation (gtf). The quality control for the nanopore genomes can be accessed on QC_nanopore_genomes.zip, and the quality control for the RNA-seq data on QC_RNAseq.zip.</p> <p>Additional files, as code and input files to reproduce the specific analysis of the manuscript, are also provided in the github repository: https://github.com/OliveiraDS-hub/Pipelines-Cactophilic-Drosophila-Species</p> <p> </p> <p> </p>
Raw data from: Inter- and intra-specific variation in mycotoxin tolerance: A study of four Drosophila species
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P-elements strengthen reproductive isolation within the Drosophila simulans species complex
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Data from: Species distribution models of the Spotted Wing Drosophila (Drosophila suzukii, Diptera: Drosophilidae) in its native and invasive range reveal an ecological niche shift
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Effects of mycotoxin treatment on fly survival, development time, thorax length, fecundity, and longevity in four mycophagous Drosophila species
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Is variation in female aggressiveness across Drosophila species associated with reproductive potential?
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Whole genome sequences of 23 species from the Drosophila montium species group (Diptera: Drosophilidae): a resource for testing evolutionary hypotheses
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Data from: Sperm metabolic rate predicts female mating frequency across Drosophila species
<p>Female mating rates vary widely, even among closely related species, but the reasons for this variation are not fully understood. Across <i>Drosophila </i>species, female mating frequencies are positively associated with sperm length. This association may be due in part to sperm limitation, with longer-spermed species transferring fewer sperm, or to cryptic female choice. However, a previously overlooked factor is sperm metabolic rate, which may correlate with sperm length. If faster-metabolizing sperm accumulate age-related cellular damage more quickly, then females should remate sooner to obtain fresh sperm. Alternatively, frequent female mating may select for increased sperm competitiveness via increased metabolism. Here, we measure sperm metabolism across 13 <i>Drosophila </i>species and compare these measures to published data on female mating rate and on sperm length. Using fluorescent lifetime imaging microscopy, we quantify NAD(P)H metabolism ex vivo, in intact organs. Phylogenetically controlled regression reveals that sperm metabolic rate is positively associated with sperm length and with female mating frequency. Path analysis shows sperm length driving sperm metabolism and sperm metabolism either driving or being driven by female mating rate. While the causal directionality of these relationships remains to be fully resolved, and the effect of sperm metabolism on sperm aging and/or sperm competitiveness remains to be established, our results demonstrate the importance of sperm metabolism in sexual selection.</p>
Melanic pigmentation and light preference within and between two Drosophila species
<p>Environmental adaptation and species divergence often involve suites of co-evolving traits. Pigmentation in insects presents a variable, adaptive, and well-characterized class of phenotypes for which correlations with multiple other traits have been demonstrated. In <i>Drosophila</i>, the pigmentation genes <i>ebony</i> and <i>tan</i> have pleiotropic effects on flies' response to light, creating the potential for correlated evolution of pigmentation and vision. Here we investigate differences in light preference within and between two sister species, <i>Drosophila americana</i> and <i>D. novamexicana</i>, which differ in pigmentation in part because of evolution at <i>ebony</i> and <i>tan</i>, and occupy environments that differ in many variables including solar radiation. We hypothesized that lighter pigmentation would be correlated with a greater preference for environmental light, and tested this hypothesis using a habitat choice experiment. In a first set of experiments, using males of <i>D. novamexicana</i> line N14 and <i>D. americana</i> line A00, the light-bodied <i>D. novamexicana</i> was found slightly but significantly more often than <i>D. americana </i>in the light habitat. A second experiment, which included additional lines and females as well as males, failed to find any significant difference between <i>D. novamexicana</i>-N14 and <i>D. americana</i>-A00. Additionally, the other dark line of <i>D. americana</i> (A04) was found in the light habitat more often than the light-bodied <i>D. novamexicana</i>-N14, in contrast to our predictions. However, the lightest line of <i>D. americana</i>, A01, was found substantially and significantly more often in the light habitat than the two darker lines of <i>D. americana</i>, thus providing partial support for our hypothesis. Finally, across all four lines, females were found more often in the light habitat than their more darkly-pigmented male counterparts. Additional replication is needed to corroborate these findings and evaluate conflicting results, with the consistent effect of sex within and between species providing an especially intriguing avenue for further research.</p>
Elevated sleep quota in a stress-resilient Drosophila species
<p>Sleep is broadly conserved across the animal kingdom but can vary widely between species. It is currently unclear which selective pressures and regulatory mechanisms influence differences in sleep between species. The fruit fly <em>Drosophila</em><em>melanogaster</em> has become a successful model system for examining sleep regulation and function, but little is known about the sleep patterns in many related fly species. Here, we find that fly species with adaptations to extreme desert environments, including <em>D. mojavensis,</em> exhibit strong increases in baseline sleep compared to <em>D. melanogaster.</em> Long-sleeping <em>D. mojavensis </em>show intact homeostasis, indicating that desert flies carry an elevated drive for sleep. In addition, <em>D. mojavensis</em> exhibit altered abundance or distribution of several sleep/wake related neuromodulators and neuropeptides that are consistent with their reduced locomotor activity and increased sleep. Finally, we find that in a nutrient-deprived environment, the sleep patterns of individual <em>D. mojavensis</em> are strongly correlated with their survival time and that disrupting sleep via constant light stimulation renders <em>D. mojavensis</em> more sensitive to starvation. Our results demonstrate that <em>D. mojavensis</em> is a novel model for studying organisms with high sleep drive, and for exploring sleep strategies that provide resilience in extreme environments.</p>
Junction bam files for Drosophila species
<p>Junction bam files for Drosophila species</p>
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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.