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 language | English (US) |
|---|---|
| Pages (from-to) | 438-445 |
| Number of pages | 8 |
| Journal | Journal of Evolutionary Biology |
| Volume | 16 |
| Issue number | 3 |
| DOIs | |
| State | Published - May 1 2003 |
| Externally published | Yes |
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Keywords
- Chimera
- Dictyostelium
- Dominance hierarchy
- Microsatellites
- Slime mould
- Social amoebae
- Social evolution
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
Cite this
A linear dominance hierarchy among clones in chimeras of the social amoeba Dictyostelium discoideum. / Fortunato, Angelo; Queller, D. C.; Strassmann, Joan E.
In: Journal of Evolutionary Biology, Vol. 16, No. 3, 01.05.2003, p. 438-445.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A linear dominance hierarchy among clones in chimeras of the social amoeba Dictyostelium discoideum
AU - Fortunato, Angelo
AU - Queller, D. C.
AU - Strassmann, Joan E.
PY - 2003/5/1
Y1 - 2003/5/1
N2 - 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.
AB - 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.
KW - Chimera
KW - Dictyostelium
KW - Dominance hierarchy
KW - Microsatellites
KW - Slime mould
KW - Social amoebae
KW - Social evolution
UR - http://www.scopus.com/inward/record.url?scp=0038560944&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0038560944&partnerID=8YFLogxK
U2 - 10.1046/j.1420-9101.2003.00545.x
DO - 10.1046/j.1420-9101.2003.00545.x
M3 - Article
C2 - 14635843
AN - SCOPUS:0038560944
VL - 16
SP - 438
EP - 445
JO - Journal of Evolutionary Biology
JF - Journal of Evolutionary Biology
SN - 1010-061X
IS - 3
ER -