Ectocarpus sp.
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ABSTRACT:
PROVIDER: PRJNA272715 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:The pathosystem between the model brown alga Ectocarpus siliculsosus and the oomycete pathogen Eurychasma dicksonii was investigated with the aim to identify proteins involved in host repsonse. Comparative 2D electrophoresis was used to identify protein spots differentially expressed between uninfected control and infected algal tissue.
2018-10-19 | PXD001458 | Pride
Project description:Brown algae (Phaeophyceae) are complex photosynthetic organisms with a very different evolutionary history to green plants, to which they are only distantly related. These seaweeds are the dominant species in rocky coastal ecosystems and they exhibit many interesting adaptations to these, often harsh, environments. The brown algae are also important because they are one of only a very small number of eukaryotic lineages that have evolved complex multicellularity. This work used whole genome tiling array approach to generate a comprehensive transcriptome map of the filamentous seaweed Ectocarpus siliculosus (Dillwyn) Lyngbye, a model organism for the brown algae. Keywords: high-resolution tiling array, brown algae, ectocarpus
2010-04-07 | GSE19912 | GEO
Project description:The aim of this study was to analyze genome-wide patterns of histone post-translational modifications (PTMs) and nucleosome distribution during the sporophyte and gametophyte generations of the life cycle of the brown alga Ectocarpus. Analysis of the results of this experiment along with those generated by a second experiment “Genome-wide analysis of chromatin states of Ectocarpus sporophytes and gametophytes, experiment 1” indicated that the histone PTMs H3K4me2, H3K4me3, H3K9ac, H3K14ac and H3K27ac are associated with the transcriptional start sites (TSSs) of actively expressed genes, H3K36me3 preferentially marks gene bodies and is associated with gene activation, H4K20me3 marks transposons and is associated with gene repression, probably through the silencing of transposons in introns. H3K79me2 occurs in zones corresponding to about a third of the genome. These zones often span several genes and genes within H3K79me2 zones exhibit lower levels of transcript abundance.
2020-11-05 | GSE146366 | GEO
Project description:The aim of this study was to analyze genome-wide patterns of histone post-translational modifications (PTMs) and nucleosome distribution during the sporophyte and gametophyte generations of the life cycle of the brown alga Ectocarpus. Analysis of the results of this experiment along with those generated by a second experiment “Genome-wide analysis of chromatin states of Ectocarpus sporophytes and gametophytes, experiment 2” indicated that the histone PTMs H3K4me2, H3K4me3, H3K9ac, H3K14ac and H3K27ac are associated with the transcriptional start sites (TSSs) of actively expressed genes, H3K36me3 preferentially marks gene bodies and is associated with gene activation, H4K20me3 marks transposons and is associated with gene repression, probably through the silencing of transposons in introns. H3K79me2 occurs in zones corresponding to about a third of the genome. These zones often span several genes and genes within H3K79me2 zones exhibit lower levels of transcript abundance.
2020-11-05 | GSE146359 | GEO
Project description:Brown algae (Phaeophyceae) are complex photosynthetic organisms with a very different evolutionary history to green plants, to which they are only distantly related. These seaweeds are the dominant species in rocky coastal ecosystems and they exhibit many interesting adaptations to these, often harsh, environments. The brown algae are also important because they are one of only a very small number of eukaryotic lineages that have evolved complex multicellularity. This work used whole genome tiling array approach to generate a comprehensive transcriptome map of the filamentous seaweed Ectocarpus siliculosus (Dillwyn) Lyngbye, a model organism for the brown algae. Keywords: high-resolution tiling array, brown algae, ectocarpus The slides were hybridised with two, labelled samples: 1) a mixture of labelled cDNA corresponding to RNA samples from mature sporophytes and gametophytes and from immature sporophytes stressed either in high salt medium or by addition of hydrogen peroxide and 2) genomic DNA as a control.
2010-04-07 | E-GEOD-19912 | biostudies-arrayexpress
Project description:The aim of this experiment was to compare transcript abundances in parthenotes (i.e. organisms derived by parthenogenetic development of gametes) of two life cycle mutants of the brown alga Ectocarpus siliculosus with transcript abundances in the wild type sporophyte and gametophyte generations. This is of interest because the two mutations, immediate upright (imm) and ouroboros (oro), cause partial and almost complete hometic conversion, respectively, of the sporophyte into the gametophyte. imm parthenotes exhibit gametophyte-like morphology during early development but remain sporophytes in functional terms (they do not produce gametes) whereas oro parthenotes behave as functional gametophytes and are morphologically indistinguishable from gametophytes apart from the appearance some minor sporophyte-like features very early in development in some individuals. To minimise genetic background effects the samples for this experiment were derived from a segregating population derived from an imm/IMM oro/ORO sporophyte. Four classes of gametophyte were derived from this sporophyte were IMM/ORO (wild type), imm/ORO, IMM/oro and imm/oro. Parthenomes were bulked to provide a wild type sporophyte sample, samples corresponding to the two individual mutants, plus the double mutant. A wild type gametophyte sample was also compared for comparison. Hybridisations with cDNA derived from these five samples were carried out using a NimbleGen expressed-sequence-tag-(EST-)based microarray carrying probes corresponding to 10,600 of the 16,256 genes identified in the Ectocarpus genome.
2012-01-14 | E-MTAB-485 | biostudies-arrayexpress
Project description:Metabarcoding of brown algal (Ectocarpus) bacterial cocultures.
| PRJEB34356 | ENA