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The Ectocarpus genome and the independent evolution of multicellularity in brown algae
TLDR
The Ectocarpus genome sequence represents an important step towards developing this organism as a model species, providing the possibility to combine genomic and genetic approaches to explore these and other aspects of brown algal biology further. Expand
Long chain polyunsaturated fatty acid production and partitioning to triacylglycerols in four microalgae.
Gas chromatographic profiling of fatty acids was performed during the growth cycle of four marine microalgae in order to establish which, if any, of these could act as a reliable source of genes forExpand
The cell wall polysaccharide metabolism of the brown alga Ectocarpus siliculosus. Insights into the evolution of extracellular matrix polysaccharides in Eukaryotes.
TLDR
Surprisingly, known families of cellulases, expansins and alginate lyases are absent in Ectocarpus, suggesting the existence of novel mechanisms and/or proteins for cell wall expansion in brown algae. Expand
Chemical and enzymatic fractionation of cell walls from Fucales: insights into the structure of the extracellular matrix of brown algae.
TLDR
The data provide a global snapshot of the cell wall architecture in brown algae, and contribute to the understanding of the structure-function relationships of the main cell wall components, which indicate that FCSPs are tightly associated with proteins and cellulose within the walls. Expand
Genome structure and metabolic features in the red seaweed Chondrus crispus shed light on evolution of the Archaeplastida
TLDR
An evolutionary scenario involving an ancestral red alga that was driven by early ecological forces to lose genes, introns, and intergenetic DNA is proposed; this loss was followed by an expansion of genome size as a consequence of activity of transposable elements. Expand
Central and storage carbon metabolism of the brown alga Ectocarpus siliculosus: insights into the origin and evolution of storage carbohydrates in Eukaryotes.
TLDR
The candidate genes for the enzymes involved in C storage in the genome of the brown alga Ectocarpus siliculosus are identified, and the validity of the 'Chromalveolate hypothesis' is questioned. Expand
Global expression analysis of the brown alga Ectocarpus siliculosus (Phaeophyceae) reveals large-scale reprogramming of the transcriptome in response to abiotic stress
TLDR
This first large-scale transcriptomic study of a brown alga demonstrates that, unlike terrestrial plants, E. siliculosus undergoes extensive reprogramming of its transcriptome during the acclimation to mild abiotic stress. Expand
The genome of the seagrass Zostera marina reveals angiosperm adaptation to the sea
TLDR
The genome of Zostera marina, the first, to the authors' knowledge, marine angiosperm to be fully sequenced, reveals unique insights into the genomic losses and gains involved in achieving the structural and physiological adaptations required for its marine lifestyle. Expand
Characterization of the first alginolytic operons in a marine bacterium: from their emergence in marine Flavobacteriia to their independent transfers to marine Proteobacteria and human gut
TLDR
In-depth phylogenomic analyses reveal that such alginolytic operons originated from an ancestral marine flavobacterium and were independently transferred to marine proteobacteria and Japanese gut Bacteroides, gaining the capacity to assimilate the main polysaccharide of brown algae, an adaptive advantage in coastal environments but also in the gut microbiota of specific human population. Expand
Development and physiology of the brown alga Ectocarpus siliculosus: two centuries of research.
TLDR
This review looks back over two centuries of work on this brown alga and highlights the advances that have led to the choice of E. siliculosus as a genomic and genetic model organism for the brown algae. Expand
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