ArticleProceedings of the National Academy of Sciences of the United States of America2020
Neoproterozoic origin and multiple transitions to macroscopic growth in green seaweeds.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.
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42 citing papers in PubMed, 135 citations in OpenAlex.
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- Targeted genetic manipulation and yeast-like evolutionary genomics in the green alga Auxenochlorella.The Plant cell · 2025Article
- Targeted genetic manipulation and yeast-like evolutionary genomics in the green algabioRxiv : the preprint server for biology · 2025Article
- Mitochondrial mRNA oligocitydylation occurs in Chlorophyceae and Ulvales but not Bryopsidales or Trebouxiophyceae.Journal of phycology · 2025Article
- Unlocking the Potential of Red Seaweeds: A Special Focus onMarine drugs · 2025Review
- Extensive diversity of Symbiochlorum-related algae from environmental sequences and culture strains supports the description of the new family Symbiochloraceae (Ulvophyceae, Chlorophyta).Journal of phycology · 2025Article
- Biochemical and phylogenetic analyses of light-harvesting complexes from Tetraselmis striata.Photosynthesis research · 2025Article
- Ecosystem relocation on Snowball Earth: Polar-alpine ancestry of the extant surface biosphere?Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Comparative Genomics ofBiomolecules · 2025Article
- A promiscuous mechanism to phase separate eukaryotic carbon fixation in the green lineage.Nature plants · 2024Article
- Genome ofProceedings of the National Academy of Sciences of the United States of America · 2024Article
- A Year at the Forefront of Streptophyte Algal Evolution.Biology open · 2024Review
- Proterozoic microfossils continue to provide new insights into the rise of complex eukaryotic life.Royal Society open science · 2024Review
- Amoebozoan testate amoebae illuminate the diversity of heterotrophs and the complexity of ecosystems throughout geological time.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- The importance of continents, oceans and plate tectonics for the evolution of complex life: implications for finding extraterrestrial civilizations.Scientific reports · 2024Article
- Fossil-calibrated molecular clock data enable reconstruction of steps leading to differentiated multicellularity and anisogamy in the Volvocine algae.BMC biology · 2024Article
- Cryogenian Origins of Multicellularity in Archaeplastida.Genome biology and evolution · 2024Article
- Unicellular and multicellular developmental variations in algal zygotes produce sporophytes.Biology letters · 2023Article
- Multicellularity and the Need for Communication-A Systematic Overview on (Algal) Plasmodesmata and Other Types of Symplasmic Cell Connections.Plants (Basel, Switzerland) · 2023Review
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Authors and funding
13 authors at 8 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Neoproterozoic Era records the transition from a largely bacterial to a predominantly eukaryotic phototrophic world, creating the foundation for the complex benthic ecosystems that have sustained Metazoa from the Ediacaran Period onward. This study focuses on the evolutionary origins of green seaweeds, which play an important ecological role in the benthos of modern sunlit oceans and likely played a crucial part in the evolution of early animals by structuring benthic habitats and providing novel niches. By applying a phylogenomic approach, we resolve deep relationships of the core Chlorophyta (Ulvophyceae or green seaweeds, and freshwater or terrestrial Chlorophyceae and Trebouxiophyceae) and unveil a rapid radiation of Chlorophyceae and the principal lineages of the Ulvophyceae late in the Neoproterozoic Era. Our time-calibrated tree points to an origin and early diversification of green seaweeds in the late Tonian and Cryogenian periods, an interval marked by two global glaciations with strong consequent changes in the amount of available marine benthic habitat. We hypothesize that unicellular and simple multicellular ancestors of green seaweeds survived these extreme climate events in isolated refugia, and diversified in benthic environments that became increasingly available as ice retreated. An increased supply of nutrients and biotic interactions, such as grazing pressure, likely triggered the independent evolution of macroscopic growth via different strategies, including true multicellularity, and multiple types of giant-celled forms.
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