Fig mosaic emaravirus in cyclamen
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ABSTRACT:
PROVIDER: PRJEB24488 | ENA |
REPOSITORIES: ENA
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Project description:A striking property of the ancient and obligate mutualism between figs and their pollinating wasps is that fig wasps consistently oviposit in the inner flowers of the fig syconium (gall flowers, which develop into galls that house developing larvae), but typically do not use the outer ring of flowers (seed flowers, which develop into seeds). To better understand differences between gall and seed flowers that might influence oviposition choices, and the unknown mechanisms underlying gall formation, we used a metatranscriptomic approach to analyze eukaryotic gene expression within fig flowers at the time of oviposition choice and early gall development. Consistent with the unbeatable seed hypothesis, which posits that only a portion of fig flowers are physiologically capable of responding to gall induction or supporting larval development, we found significant differences in gene expression assigned to defense and metabolism between gall- and seed flowers in receptive syconia. Transcripts assigned to flavonoids and defense were especially prevalent in receptive gall flowers, and carbohydrate metabolism was significantly up-regulated relative to seed flowers. In turn, high expression of the venom gene icarapin during wasp embryogenesis within galled flowers distinguishes it as a candidate gene for gall initiation. In response to galling, the fig significantly up-regulates the expression of chalcone synthase, which previously has been connected to gall formation in other plants. This study simultaneously evaluates the gene expression profile of both mutualistic partners in a plant-insect mutualism and provides evidence for a stability mechanism in the ancient fig-fig wasp association.
2015-03-05 | GSE55700 | GEO
Project description:A striking property of the ancient and obligate mutualism between figs and their pollinating wasps is that fig wasps consistently oviposit in the inner flowers of the fig syconium (gall flowers, which develop into galls that house developing larvae), but typically do not use the outer ring of flowers (seed flowers, which develop into seeds). To better understand differences between gall and seed flowers that might influence oviposition choices, and the unknown mechanisms underlying gall formation, we used a metatranscriptomic approach to analyze eukaryotic gene expression within fig flowers at the time of oviposition choice and early gall development. Consistent with the unbeatable seed hypothesis, which posits that only a portion of fig flowers are physiologically capable of responding to gall induction or supporting larval development, we found significant differences in gene expression assigned to defense and metabolism between gall- and seed flowers in receptive syconia. Transcripts assigned to flavonoids and defense were especially prevalent in receptive gall flowers, and carbohydrate metabolism was significantly up-regulated relative to seed flowers. In turn, high expression of the venom gene icarapin during wasp embryogenesis within galled flowers distinguishes it as a candidate gene for gall initiation. In response to galling, the fig significantly up-regulates the expression of chalcone synthase, which previously has been connected to gall formation in other plants. This study simultaneously evaluates the gene expression profile of both mutualistic partners in a plant-insect mutualism and provides evidence for a stability mechanism in the ancient fig-fig wasp association. We examined two different Ficus flower types at two different time points. Each sample contained a pool of hundreds of individual flowers from multiple sycomia.
2015-03-05 | E-GEOD-55700 | biostudies-arrayexpress
Project description:Characterisation of a novel emaravirus identified in mosaic-diseased Eurasian aspen (Populus tremula)
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Project description:Brome mosaic virus complete genome sequencing
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Project description:Population genomics and structure of several fig species and corresponding fig wasps along the Mount Wilhelm altitudinal gradient, Papua New Guinea. Raw sequence reads
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Project description:The common fig cultivar Zibao, planted at the Shangzhuang Experimental Station of China Agricultural University (Peking, China). Based on the three fig development phases (Flaishman et al., 2008), we subdivided the fig development process into six stages: stages 1 and 2 belonging to phase Ⅰ, a rapid growth stage; stages 3 and 4 belonging to phase Ⅱ, during which fruit size and hardness remain almost unchanged; stages 5 and 6 belonging to phase Ⅲ, the mature stage, where stage 5 corresponded to commercial ripeness. Inflorescences and receptacles at each stage were separated, marked as F1–F6 and R1–R6, respectively. Stage 1, 3 and 5 inflorescences and receptacles were used for proteomic analysis.
2021-05-01 | PXD025170 | Pride
Project description:Characterization of a novel emaravirus affecting ash species (Fraxinus spp.) in Europe
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Project description:Ficus carica cultivar:fig Transcriptome or Gene expression
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