A linear dominance hierarchy among clones in chimeras of the social amoeba Dictyostelium discoideum

A. Fortunato, D. C. Queller, Joan E. Strassmann

Research output: Contribution to journalArticle

56 Scopus citations

Abstract

Amoebae from different clones of Dictyostelium discoideum aggregate into a common slug, which migrates towards light for dispersal, then forms a fruiting body consisting of a somatic, dead stalk, holding up a head of living spores. Contributions of two clones in a chimera to spore and stalk are often unequal, with one clone taking advantage of the other's stalk contribution. To determine whether there was a hierarchy of exploitation among clones, we competed all possible pairs among seven clones and measured their relative representation in the prespore and prestalk stages and in the final spore stage. We found a clear linear hierarchy at the final spore stage, but not at earlier stages. These results suggest that there is either a single principal mechanism or additive effects for differential contribution to the spore, and that it involves more than spore/stalk competition.

Original languageEnglish (US)
Pages (from-to)438-445
Number of pages8
JournalJournal of Evolutionary Biology
Volume16
Issue number3
DOIs
StatePublished - May 1 2003
Externally publishedYes

Keywords

  • Chimera
  • Dictyostelium
  • Dominance hierarchy
  • Microsatellites
  • Slime mould
  • Social amoebae
  • Social evolution

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Fingerprint Dive into the research topics of 'A linear dominance hierarchy among clones in chimeras of the social amoeba Dictyostelium discoideum'. Together they form a unique fingerprint.

  • Cite this