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Journal article : Review

Understanding microbial divisions of labor

Abstract:
Divisions of labor are ubiquitous in nature and can be found at nearly every level of biological organization, from the individuals of a shared society to the cells of a single multicellular organism. Many different types of microbes have also evolved a division of labor among its colony members. Here we review several examples of microbial divisions of labor, including cases from both multicellular and unicellular microbes. We first discuss evolutionary arguments, derived from kin selection, that allow divisions of labor to be maintained in the face of non-cooperative cheater cells. Next we examine the widespread natural variation within species in their expression of divisions of labor and compare this to the idea of optimal caste ratios in social insects. We highlight gaps in our understanding of microbial caste ratios and argue for a shift in emphasis from understanding the maintenance of divisions of labor, generally, to instead focusing on its specific ecological benefits for microbial genotypes and colonies. Thus, in addition to the canonical divisions of labor between, e.g., reproductive and vegetative tasks, we may also anticipate divisions of labor to evolve to reduce the costly production of secondary metabolites or secreted enzymes, ideas we consider in the context of streptomycetes. The study of microbial divisions of labor offers opportunities for new experimental and molecular insights across both well-studied and novel model systems.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.3389/fmicb.2016.02070

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Biology
Sub department:
Zoology
Role:
Author
ORCID:
0000-0001-6384-3054
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Role:
Author
ORCID:
0000-0002-0789-2633
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Role:
Author
ORCID:
0000-0002-7772-0239


Publisher:
Frontiers Media
Journal:
Frontiers in Microbiology More from this journal
Volume:
7
Article number:
2070
Place of publication:
Switzerland
Publication date:
2016-12-21
Acceptance date:
2016-12-07
DOI:
EISSN:
1664-302X
Pmid:
28066387


Language:
English
Keywords:
Subtype:
Review
Pubs id:
1161085
Local pid:
pubs:1161085
Deposit date:
2023-08-11
ARK identifier:

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