Early life: Origins of multicellularity

@article{Donoghue2010EarlyLO,
  title={Early life: Origins of multicellularity},
  author={Philip C. J. Donoghue and Jonathan B. Antcliffe},
  journal={Nature},
  year={2010},
  volume={466},
  pages={41-42}
}
Interpreting truly ancient fossils is an especially tricky business. The conclusion that 2.1-billion-year-old structures from Gabon are the remains of large colonial organisms will get palaeobiologists talking. 

Figures and Topics from this paper

The Major Transitions in Early Evolution
TLDR
Features of autonomy and robustness in early evolution are brought into focus in this chapter, showing that metazoan autonomy evolved in successive steps. Expand
Toward a New Understanding of Multicellularity
TLDR
It is here hypothesized that obligate multicellularity results from extended cooperation between different life entities adopted as a strategy to survive prolonged low-fitness periods. Expand
Origin of the Eukaryotic Cell
All complex life on Earth is composed of ‘eukaryotic’ cells. Eukaryotes arose just once in 4 billion years, via an endosymbiosis — bacteria entered a simple host cell, evolving into mitochondria, theExpand
On dating stages in prebiotic chemical evolution
  • R. Bywater
  • Biology, Medicine
  • Naturwissenschaften
  • 2012
TLDR
The task of origin of life research must surely be to identify those chemical processes which could have taken place on Earth that could accumulate the complexity and rich molecular information content needed to sustain primitive life, and ultimately give rise to RNA. Expand
Gaia: The Planet Holobiont
The strict definition of holobiont is that it is a host organism (plant or animal) in interaction with all associated microorganisms as an entity for selection in evolution. This definition can beExpand
The Origin of Mites: Fossil History and Relationships
Mites are members of the arthropod subphylum Chelicerata, a group with a long fossil history of about 500 million years (Dunlop 2010) (Fig. 2.1). The earliest chelicerate fossils are known from theExpand
From hominins to humans: how sapiens became behaviourally modern
  • K. Sterelny
  • Biology, Medicine
  • Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2011
TLDR
It is argued that the model is evolutionarily plausible: the elements of the model can be assembled incrementally, without implausible selective scenarios, and the model coheres with the broad palaeoarchaeological record. Expand
Major problems in evolutionary transitions: how a metabolic perspective can enrich our understanding of macroevolution
The model of major transitions in evolution (MTE) devised by Maynard Smith and Szathmáry has exerted tremendous influence over evolutionary theorists. Although MTE has been criticized forExpand
Using adaptive laboratory evolution of multicellular snowflake clusters in yeast Saccharomyces cerevisiae to study reversibility of evolutionary processes
TLDR
This work uses evolution of multicellularity in S. cerevisiae as a model to answer the question of chance vs. determinism in dictating evolutionary trajectories and shows how epistatic interactions evolve in a genome and shape evolutionary trajectoryories remains largely unknown. Expand
Giving the early fossil record of sponges a squeeze
TLDR
Twenty candidate fossils with claim to be the oldest representative of the Phylum Porifera have been re‐analysed and it is shown that no Precambrian fossil candidate yet satisfies all three of these criteria to be a reliable sponge fossil. Expand
...
1
2
3
4
...

References

SHOWING 1-7 OF 7 REFERENCES
Large colonial organisms with coordinated growth in oxygenated environments 2.1 Gyr ago
TLDR
The discovery of centimetre-sized structures from the 2.1-Gyr-old black shales of the Palaeoproterozoic Francevillian B Formation in Gabon are reported, which are interpreted as highly organized and spatially discrete populations of colonial organisms. Expand
Proterozoic Ocean Chemistry and Evolution: A Bioinorganic Bridge?
TLDR
Recent data imply that for much of the Proterozoic Eon, Earth's oceans were moderately oxic at the surface and sulfidic at depth, and biologically important trace metals would have been scarce in most marine environments. Expand
Elements and Evolution
Changes in elemental abundances in Earth's oceans on geological time scales are intimately linked to evolutionary processes.
The Major Transitions in Evolution
TLDR
This book discusses the origins of societies, development and evolution, and the development of spatial patterns in simple organisms. Expand
The Paleoproterozoic megascopic Stirling biota
Abstract The 2.0–1.8-billion-year-old Stirling Range Formation in southwestern Australia preserves the deposits of a siliciclastic shoreline formed under the influence of storms, longshore currents,Expand
Modes of pre-Ediacaran multicellularity
TLDR
There is no evidence for organ-grade differentiation prior to the Ediacaran, and it is the absence of eumetazoans and embryophytes that distinguishes the pre-Ediacaran world from the fundamentally richer and more dynamic biosphere of the Phanerozoic. Expand
Thinking about bacterial populations as multicellular organisms.
  • J. Shapiro
  • Biology, Medicine
  • Annual review of microbiology
  • 1998
TLDR
Bacteria benefit from multicellular cooperation by using cellular division of labor, accessing resources that cannot effectively be utilized by single cells, collectively defending against antagonists, and optimizing population survival by differentiating into distinct cell types. Expand