Evolutionary genomics of the emergence of brown algae as key components of coastal ecosystems

Denoeud, F, Godfroy, O, Cruaud, C, Heesch, S, Nehr, Z, Tadrent, N, Murphy, EA and Wheeler, G 2024 Evolutionary genomics of the emergence of brown algae as key components of coastal ecosystems. Cell, 187 (24). https://doi.org/10.1016/j.cell.2024.10.049

Full text not available from this repository.

Abstract/Summary

Brown seaweeds are keystone species of coastal ecosystems, often forming extensive underwater forests, and are under considerable threat from climate change. In this study, analysis of multiple genomes has provided insights across the entire evolutionary history of this lineage, from initial emergence, through later diversification of the brown algal orders, down to microevolutionary events at the genus level. Emergence of the brown algal lineage was associated with a marked gain of new orthologous gene families, enhanced protein domain rearrangement, increased horizontal gene transfer events, and the acquisition of novel signaling molecules and key metabolic pathways, the latter notably related to biosynthesis of the alginate-based extracellular matrix, and halogen and phlorotannin biosynthesis. We show that brown algal genome diversification is tightly linked to phenotypic divergence, including changes in life cycle strategy and zoid flagellar structure. The study also showed that integration of large viral genomes has had a significant impact on brown algal genome content throughout the emergence of the lineage

Item Type:	Publication - Article
Additional Keywords:	brown algae, Ectocarpus, genome, intertidal and subtidal, multicellularity, Phaeophyceae, Phaeovirus, stramenopile, viral genome insertions
Subjects:	Marine Sciences
Divisions:	Marine Biological Association of the UK > Marine Microbiome
Depositing User:	Ms Kristina Hixon
Date made live:	09 Dec 2024 10:24
Last Modified:	09 Dec 2024 10:24
URI:	https://plymsea.ac.uk/id/eprint/10339

Actions (login required)

View Item