Breviolum minutum strain:SSB01
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ABSTRACT:
PROVIDER: PRJNA388224 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Breviolum minutum SSB01 Transcriptome
| PRJNA591070 | ENA
Project description:In dinoflagellates, the most unique and divergent nuclear organization among the known diversity of eukaryotes has evolved. The list of highly unusual features of dinoflagellate nuclei and genomes is long -- permanently condensed liquid crystalline chromosomes, in which histones are not the main packaging component, genes organized as very long unidirectional gene arrays, general absence of transcriptional regulation, high abundance of the otherwise very rare DNA modification 5-hydroxymethyluracil (5-hmU), and many others. Most of these fascinating properties were originally identified in the 1970s and 1980s but have received very little attention in recent decades using modern genomic tools. In this work, we address some of the outstanding questions regarding dinoflagellate genome organization by mapping the genome-wide distribution of 5-hmU (using both immunoprecipitation-based and basepair-resolution chemical mapping approaches) and of chromatin accessibility in the genome of the dinoflagellate Breviolum minutum. We find that the 5-hmU modification is preferentially enriched over certain classes of repetitive elements, and also often coincides with the boundaries between gene arrays. It is generally anti-correlated with chromatin accessibility, the levels of which are lower in those regions. We discuss the potential roles of 5-hmU in the functional organization of dinoflagellate genomes and its relationship to the transcriptional landscape of gene arrays.
2023-10-19 | GSE241969 | GEO
Project description:Cultures of three Symbiodiniaceae genera (Breviolum minutum, Durusdinium trenchii, Cladocopium sp.) were exposed to temperatures increasing from 26C to 32C over three days, followed by one week at 32C. Samples for proteome analysis were taken from controls (26C), at the end of the temperature ramp, and after one week at 32C. The three species have been submitted to PRIDE individually. Manuscript in preparation.
2022-02-23 | PXD025080 | Pride
Project description:Symbiodinium minutum transcriptome assembly
| PRJNA274852 | ENA
Project description:Cellular mechanisms responsible for the regulation of nutrient exchange, immune responses, and symbiont population growth in the cnidarian-dinoflagellate symbiosis are poorly resolved, particularly with respect to the dinoflagellate symbiont. Here, we characterised proteomic changes in the native symbiont Breviolum minutum during colonisation of its host sea anemone Exaiptasia diaphana (‘Aiptasia’). We also compared the proteome of this native symbiont in the established symbiotic state with that of a non-native symbiont, Durusdinium trenchii. The onset of symbiosis between Aiptasia and B. minutum induced increased accumulation of symbiont proteins associated with acquisition of inorganic carbon and photosynthesis, nitrogen metabolism, micro- and macronutrient starvation, suppression of the host immune responses, tolerance to low pH, and management of oxidative stress. Such responses are consistent with a functional, persistent symbiosis. In contrast, D. trenchii predominantly showed elevated levels of immunosuppressive proteins, consistent with the view that this symbiont is an opportunist that forms a less beneficial, less well-integrated symbiosis with this model anemone. By adding this analyses of the symbiont proteins to the already known responses of the host proteome, our results provide a more holistic view of cellular processes that determine host-symbiont specificity and how differences in symbiont partners, native versus non-native symbionts, may impact the fitness of the cnidarian-dinoflagellate symbiosis in response to thermal stress. This PRIDE entry contains the Breviolum minutum data; Durusdinium trenchii data are uploaded in a separate entry with identical parameters.
2024-01-18 | PXD045585 | Pride
Project description:The whole genome sequence of a dinoflagellate, Symbiodinium minutum
| PRJDB732 | ENA
Project description:Transcriptome sequencing of Symbiodinium minutum
| PRJDB2108 | ENA
Project description:Analysis of transcription start sites of in Symbiodinium minutum
| PRJDB3092 | ENA
Project description:Genome-wide distribution of 5-hydroxymethyluracil and chromatin accessibility in the Breviolum minutum genome
| PRJNA1010827 | ENA