Coevolved crypts and exocrine glands support mutualistic bacteria in fungus-growing ants
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Coevolved crypts and exocrine glands support mutualistic bacteria in fungus-growing ants. / Currie, Cameron R; Poulsen, Michael; Mendenhall, John; Boomsma, Jacobus J; Billen, Johan.
In: Science, Vol. 311, No. 5757, 2006, p. 81-83.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Coevolved crypts and exocrine glands support mutualistic bacteria in fungus-growing ants
AU - Currie, Cameron R
AU - Poulsen, Michael
AU - Mendenhall, John
AU - Boomsma, Jacobus J
AU - Billen, Johan
PY - 2006
Y1 - 2006
N2 - Attine ants engage in a quadripartite symbiosis with fungi they cultivate for food, specialized garden parasites, and parasite-inhibiting bacteria. Molecular phylogenetic evidence supports an ancient host-pathogen association between the ant-cultivar mutualism and the garden parasite. Here we show that ants rear the antibiotic-producing bacteria in elaborate cuticular crypts, supported by unique exocrine glands, and that these structures have been highly modified across the ants' evolutionary history. This specialized structural evolution, together with the absence of these bacteria and modifications in other ant genera that do not grow fungus, indicate that the bacteria have an ancient and coevolved association with the ants, their fungal cultivar, and the garden parasite.
AB - Attine ants engage in a quadripartite symbiosis with fungi they cultivate for food, specialized garden parasites, and parasite-inhibiting bacteria. Molecular phylogenetic evidence supports an ancient host-pathogen association between the ant-cultivar mutualism and the garden parasite. Here we show that ants rear the antibiotic-producing bacteria in elaborate cuticular crypts, supported by unique exocrine glands, and that these structures have been highly modified across the ants' evolutionary history. This specialized structural evolution, together with the absence of these bacteria and modifications in other ant genera that do not grow fungus, indicate that the bacteria have an ancient and coevolved association with the ants, their fungal cultivar, and the garden parasite.
KW - Actinomycetales
KW - Animals
KW - Anti-Bacterial Agents
KW - Antibiosis
KW - Ants
KW - Biological Evolution
KW - Exocrine Glands
KW - Female
KW - Fungi
KW - Hypocreales
KW - Microscopy, Electron, Scanning
KW - Microscopy, Electron, Transmission
KW - Phylogeny
KW - Species Specificity
KW - Symbiosis
U2 - 10.1126/science.1119744
DO - 10.1126/science.1119744
M3 - Journal article
C2 - 16400148
VL - 311
SP - 81
EP - 83
JO - Science
JF - Science
SN - 0036-8075
IS - 5757
ER -
ID: 81052