Mutualistic fungi control crop diversity in fungus-growing ants
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Mutualistic fungi control crop diversity in fungus-growing ants. / Poulsen, Michael; Boomsma, Jacobus J.
In: Science, Vol. 307, No. 5710, 2005, p. 741-744.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Mutualistic fungi control crop diversity in fungus-growing ants
AU - Poulsen, Michael
AU - Boomsma, Jacobus J
PY - 2005
Y1 - 2005
N2 - Leaf-cutting ants rear clonal fungi for food and transmit the fungi from mother to daughter colonies so that symbiont mixing and conflict, which result from competition between genetically different clones, are avoided. Here we show that despite millions of years of predominantly vertical transmission, the domesticated fungi actively reject mycelial fragments from neighboring colonies, and that the strength of these reactions are in proportion to the overall genetic difference between these symbionts. Fungal incompatibility compounds remain intact during ant digestion, so that fecal droplets, which are used for manuring newly grown fungus, elicit similar hostile reactions when applied to symbionts from other colonies. Symbiont control over new mycelial growth by manurial imprinting prevents the rearing of multiple crops in fungus gardens belonging to the same colony.
AB - Leaf-cutting ants rear clonal fungi for food and transmit the fungi from mother to daughter colonies so that symbiont mixing and conflict, which result from competition between genetically different clones, are avoided. Here we show that despite millions of years of predominantly vertical transmission, the domesticated fungi actively reject mycelial fragments from neighboring colonies, and that the strength of these reactions are in proportion to the overall genetic difference between these symbionts. Fungal incompatibility compounds remain intact during ant digestion, so that fecal droplets, which are used for manuring newly grown fungus, elicit similar hostile reactions when applied to symbionts from other colonies. Symbiont control over new mycelial growth by manurial imprinting prevents the rearing of multiple crops in fungus gardens belonging to the same colony.
KW - Animals
KW - Ants
KW - Feces
KW - Fungi
KW - Mycelium
KW - Symbiosis
U2 - 10.1126/science.1106688
DO - 10.1126/science.1106688
M3 - Journal article
C2 - 15692054
VL - 307
SP - 741
EP - 744
JO - Science
JF - Science
SN - 0036-8075
IS - 5710
ER -
ID: 86373