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Green-beard Effect
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A green-beard effect gene (or linked genes) produces three phenotypic effects: (1) a perceptible trait - the hypothetical green beard; (2) recognition of this trait in others; and (3) preferential treatment to those recognized. So, this gene is directly recognizing copies of itself, regardless of average relatedness.


REFERENCES

  • Haig, D. (1997) The social gene. In Krebs, J. R. & Davies, N. B. (editors) Behavioural Ecology: an Evolutionary Approach, pp. 284-304. Blackwell Publishers, London.

  • Dawkins, R. (1976) '' The Selfish Gene ''. Oxford University Press, Oxford. ISBN 0192177737

  • Hamilton, W.D. (1964). The genetical evolution of social behaviour I and II. Journal of Theoretical Biology, 7, 1-16 and 17-52. pubmed I pubmed II

  • Keller, L. & Ross, K. G. (1998) Selfish genes: a green beard in the red fire ant. Nature 394: 573-575.

  • Queller, D. C., et al. (2003) Single-gene greenbeard effects in the social amoeba ''Dictyostelium discoideum''. Science, 299, 105-106. Link