Article
Single-gene greenbeard effects in the social amoeba Dictyostelium discoideum.
Science (New York, N.Y.) - 3 Jan 2003
Queller David C, Ponte Eleonora, Bozzaro Salvatore, Strassmann Joan E
Abstract excerpt
Selection can favor reproductive altruism if an altruism allele aids copies of itself by helping relatives. The alternative "greenbeard" mechanism, in which an allele directly recognizes and aids copies of itself in others, is generally thought to be too complex for a single gene to carry out. The csA gene in Dictyostelium discoideum acts as a single-gene greenbeard. When wild-type cells are mixed with...
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