Social Slime Molds Meet Their Match

  title={Social Slime Molds Meet Their Match},
  author={Bernard J. Crespi and Stevan Springer},
  pages={56 - 57}
Biologists have debated the existence of altruistic genes that recognize and aid copies of themselves. However, demonstrating such "green-beard" genes in biological systems has proved difficult. In their Perspective, Crespi and Springer describe an elegant set of experiments (Quelleret al.) that identify a green-beard gene encoding a homophilic adhesion protein in the slime mold Dictyostelium. 
Cadherins in maternal–foetal interactions: red queen with a green beard?
  • K. Summers, B. Crespi
  • Biology, Medicine
    Proceedings of the Royal Society B: Biological Sciences
  • 2005
Support is provided for the hypothesis that the cadherin genes involved in maternal–foetal interactions have been subject to green-beard-effect mutations over the course of evolutionary history, leading to antagonistic coevolution with suppressing elements from the parliament of genes.
Genetic Configurations of Political Phenomena: New Theories, New Methods
Recent research by E. O. Wilson, Alford-Hibbing, Carmen, and others indicates that the competing social science paradigms of behavioralism and rational choice are in their last throes. Their salient
Selective pressures for accurate altruism targeting: evidence from digital evolution for difficult-to-test aspects of inclusive fitness theory
Evidence from digital evolution is provided in support of natural selection favours altruist genes that are increasingly accurate in targeting altruism to only their copies by competing multiple altruist-targeting mechanisms that vary in their accuracy in determining whether a potential target for altruism carries a copy of the altruist gene.
How is human cooperation different?
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  • Business, Medicine
    Philosophical Transactions of the Royal Society B: Biological Sciences
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It is argued that humans, in contrast to all other species, employ a wider range of enforcement mechanisms, which allow higher levels of cooperation to evolve and stabilize among unrelated individuals and in large groups.
The Stag Hunt and the Evolution of Social Structure
1. The stag hunt Part I. Location: 2. Bargaining with neighbors 3. Stag hunt with neighbors Part II. Signals: 4. Evolution of inference 5. Cheap talk Part III. Association: 6. Choosing partners 7.
The Stag Hunt and the Evolution of Social Structure
  • R. Rooij
  • Economics, Computer Science
    Stud Logica
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This book will not become a unity of the way for you to get amazing benefits at all, but, it will serve something that will let you get the best time and moment to spend for reading the book.
“A and B”:
Direct fabrication of large micropatterned single crystals. p1205 21 Feb 2003. (news): Academy plucks best biophysicists from a sea of mediocrity. p994 14 Feb 2003.
Rapid evolution of a gamete-recognition protein in a hybrid Mytilus population
This work is the first example of secondary contact and hybridization between two ecologically-distinct species resulting in positively selected divergence of a mate recognition trait whose genetic basis is known and is therefore of some general importance to evolutionary biology.
10 The Development of Social Understanding
Understanding others is an essential aspect of being human. We review research and theory on the development of a range of skills constituting social understanding beginning in infancy with
Influence of biofilms on porous media hydrodynamics


Single-Gene Greenbeard Effects in the Social Amoeba Dictyostelium discoideum
The csA gene inDictyostelium discoideum acts as a single-gene greenbeard, and when wild-type cells are mixed with csA-knockout cells, the wild type is more altruistic, but is also able preferentially to direct the benefits to other wild- type cells.
Gestational drive and the green-bearded placenta.
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  • Biology, Medicine
    Proceedings of the National Academy of Sciences of the United States of America
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Green-beard effects have many formal similarities to systems of meiotic drive and, like them, can be a source of intragenomic conflict.
Selfish genes: a green beard in the red fire ant
It is shown that BB queens initiating reproduction are killed by workers, and that it is primarily Bb rather than BB workers that are responsible for these executions.
Exceptional sperm cooperation in the wood mouse
The probable altruistic behaviour of spermatozoa in an eutherian mammal, Apodemus sylvaticus, is reported, which displayed a unique morphological transformation resulting in cooperation in distinctive aggregations or ‘trains’ of hundreds or thousands of cells, which significantly increased sperm progressive motility.
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A genetical mathematical model is described which allows for interactions between relatives on one another's fitness and a quantity is found which incorporates the maximizing property of Darwinian fitness, named “inclusive fitness”.
Integrins, cadherins, and catenins: molecular cross‐talk in cancer cells
Intercellular and cell–matrix adhesion mediated by cadherin/catenin and integrins is likely to play a role in the control of both structural morphology and functional differentiation; hence, any loss of this control mechanism may well facilitate the neoplastic process.
Nature Rev. Neurosci
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Trends Ecol. Evol
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Vision Res
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