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Dataset results
14 results for “Drosophila virilis”
Plastic responses of survival and fertility following heat stress in pupal and adult Drosophila virilis
<p>The impact of rising global temperatures on survival and reproduction is putting many species at risk of extinction. In particular, it has recently been shown that thermal effects on reproduction, particularly limits to male fertility, can underpin species distributions in insects. However, the physiological factors influencing fertility at high temperatures are poorly understood. Key factors that affect somatic thermal tolerance such as hardening, the ability to phenotypically increase thermal tolerance after a mild heat shock, and the differential impact of temperature on different life stages, are largely unexplored for thermal fertility tolerance. Here, we examine the impact of high temperatures on male fertility in the cosmopolitan fruit fly <i>Drosophila virilis</i>. We first determined whether temperature stress at either the pupal or adult life-history stage impacts fertility. We then tested the capacity for heat-hardening to mitigate heat-induced sterility. We found that thermal stress reduces fertility in different ways in pupae and adults. Pupal heat stress delays sexual maturity, whereas males heated as adults can reproduce initially following heat stress, but lose the ability to produce offspring. We also found evidence that while heat-hardening in <i>D. virilis </i>can improve high temperature survival, there is no significant protective impact of this same hardening treatment on fertility. These results suggest that males may be unable to prevent the costs of high temperature stress on fertility through heat-hardening which limits a species' ability to quickly and effectively reduce fertility loss in the face of short-term high temperature events.</p>
Plastic responses of survival and fertility following heat stress in pupal and adult Drosophila virilis
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Drosophila virilis template brains
<p>Male and female symmetric averaged templates (10 and 11 brains, respectively) and intersex template brain for <em>Drosophila virilis</em>. Voxel size: (0.461, 0.461, 1) micron. Individual brains were imaged with a Zeiss 710 confocal microscope using an EC Plan-Neofluar 40 × / 1.30 NA oil objective and zoom factor 0.6, with the resulting images being stitched together using the 'Pairwise stitching' plugin of Fiji.</p>
Sex-specific sterility caused by extreme temperatures is likely to create cryptic changes to the operational sex ratio in Drosophila virilis
<p>Climate change is increasing the frequency and severity of short-term heat shocks that threaten the persistence of natural populations. The effect of thermal stress on natural selection is a common topic of debate, but high temperatures can also influence sexual selection. Typically, males and females of a species can survive at similar extreme temperatures, but males have been shown to lose fertility at lower temperatures than females. Here, we examine how a brief exposure of pupae to high temperatures in the fruit fly Drosophila virilis affects adult fertility in both males and females. We find strong sexual dimorphism in temperature-induced sterility. This has the potential to quickly and unpredictably create populations composed of mostly sterile males and fertile females, resulting in changes to the operational sex ratio (OSR). These disruptions are likely to be cryptic and difficult to measure in the wild, especially considering that males can eventually recover fertility and that sterile males of some species can still copulate. Changes to the OSR in this way are likely to influence sexual selection by favouring females that can discriminate between fertile and sterilised males, and possibly leading to female-female conflict over a limited pool of fertile males. Further research on how cryptic disruptions to the OSR affect sexual selection dynamics is critical for understanding the impact of environmental change on biodiversity.</p>
Sex-specific sterility caused by extreme temperatures is likely to create cryptic changes to the operational sex ratio in Drosophila virilis
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RNA profiling in Drosophila virilis and Drosophila yakuba
GEO Series GSE61222. Drosophila yakuba; Drosophila virilis. 2 samples. Type: Expression profiling by high throughput sequencing.
Transcriptome changes associated with cold acclimation in two species of the Drosophila virilis group
GEO Series GSE58925. Drosophila virilis; Drosophila montana. 10 samples. Type: Expression profiling by high throughput sequencing.
Paramutation-like behaviour of genic piRNA-producing loci in Drosophila virilis
GEO Series GSE292339. Drosophila virilis. 20 samples. Type: Genome binding/occupancy profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing; Expression profiling by high throughput sequencing.
Small RNA expression throughout the development of Drosophila virilis
GEO Series GSE54009. Drosophila virilis. 11 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Transposable elements as catalysts of genome evolution in Drosophila virilis
GEO Series GSE307819. Drosophila virilis. 24 samples. Type: Expression profiling by high throughput sequencing; Other; Non-coding RNA profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
Changes in gene expression during cold exposure in Drosophila montana and D. virilis
GEO Series GSE31103. Drosophila virilis; Drosophila montana. 24 samples. Type: Expression profiling by array.
Seasonal gene expression kinetics between diapause phases in Drosophila virilis group speciesand overwintering differences between diapausing and non-diapausing females
GEO Series GSE69202. Drosophila virilis; Drosophila montana. 23 samples. Type: Expression profiling by array.
A trans-generational epigenetic process defines piRNA biogenesis in Drosophila virilis
GEO Series GSE59965. Drosophila virilis. 24 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
Stochastic gain of susceptibility suggests a novel mechanism of resistance to hybrid dysgenesis in Drosophila virilis
GEO Series GSE108298. Drosophila virilis. 19 samples. Type: Non-coding RNA profiling by high throughput sequencing.
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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.