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28 results for “cytoplasmic incompatibility”
Data from: Reproductive isolation due to prezygotic isolation and postzygotic cytoplasmic incompatibility in parasitoid wasps
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Data from: Wolbachia in the Drosophila yakuba complex: pervasive frequency variation and weak cytoplasmic incompatibility, but no apparent effect on reproductive isolation
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Quality over quantity: unraveling the contributions to cytoplasmic incompatibility caused by two coinfecting Cardinium symbionts
<p><i>Cardinium hertigii</i> is a common maternally-inherited bacterial endosymbiont of arthropods. Some <i>Cardinium</i> strains spread by increasing female fitness through the induction of cytoplasmic incompatibility (CI), which kills offspring of crosses between infected males and uninfected female hosts. CI is a two-step manipulation: first, sperm from male hosts are modified by the symbiont in a manner that causes offspring death. Second, when females are also infected, the symbiont reverses sperm modification in the egg cytoplasm, allowing offspring of infected females to survive and spread the symbiont. While <i>Cardinium</i> causes CI in many arthropod hosts, most of what is known about <i>Cardinium</i> CI stems from the symbiosis between the <i>Cardinium</i> strain <i>c</i>Eper1 and its minute parasitoid host, <i>Encarsia suzannae</i>. Here, we study a second <i>Cardinium</i> CI system in the wasp <i>Encarsia partenopea</i>. <i>Encarsia partenopea</i> harbors two <i>Cardinium</i> strains, <i>c</i>Eina2 and <i>c</i>Eina3, with the <i>c</i>Eina3 present at a much lower density than <i>c</i>Eina2. Using antibiotic treatments and crossing assays, we find that the low-density <i>c</i>Eina3 strain is responsible for CI, and that <i>c</i>Eina3 appears to modify sperm during the pupal stage, like the better known <i>c</i>Eper1. However, <i>c</i>Eina3 shows a markedly different localization pattern in male reproductive tissues. Instead of infecting sperm cells, <i>c</i>Eina3 is found in somatic cells at the base of the testis and around the seminal vesicle. This localization pattern suggests that <i>c</i>Eina3 may use a different sperm modification strategy from <i>c</i>Eper1, and highlights variation between these closely related symbioses.</p>
Data from: Tropical Drosophila pandora carry Wolbachia infections causing cytoplasmic incompatibility or male killing
Wolbachia infections have been described in several Drosophila species, but relatively few have been assessed for phenotypic effects. Cytoplasmic incompatibility (CI) is the most common phenotypic effect that has been detected, while some infections cause male killing or feminization, and many Wolbachia infections have few host effects. Here, we describe two new infections in a recently described species, Drosophila pandora, one of which causes near-complete CI and near-perfect maternal transmission (the "CI" strain). The other infection is a male killer (the "MK" strain), which we confirm by observing reinitiation of male production following tetracycline treatment. No incompatibility was detected in crosses between CI strain males and MK strain females, and rare MK males do not cause CI. Molecular analyses indicate that the CI and MK infections are distantly related and the CI infection is closely related to the wRi infection of Drosophila simulans. Two population surveys indicate that all individuals are infected with Wolbachia, but the MK infection is uncommon. Given patterns of incompatibility among the strains, the infection dynamics is expected to be governed by the relative fitness of the females, suggesting that the CI infection should have a higher fitness. This was evidenced by changes in infection frequencies and sex ratios in population cages initiated at different starting frequencies of the infections.
Quality over quantity: unraveling the contributions to cytoplasmic incompatibility caused by two coinfecting Cardinium symbionts
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Data from: The impact of Wolbachia, male age and mating history on cytoplasmic incompatibility and sperm transfer in Drosophila simulans
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Data from: Tropical Drosophila pandora carry Wolbachia infections causing cytoplasmic incompatibility or male killing
Open the record for dataset details and reuse information.
The relative importance of DNA methylation and Dnmt2-mediated epigenetic regulation on Wolbachia densities and cytoplasmic incompatibility
GEO Series GSE63795. Drosophila melanogaster. 2 samples. Type: Methylation profiling by high throughput sequencing.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.
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