What uses are mating types? The "developmental switch" model.

@article{Perrin2012WhatUA,
  title={What uses are mating types? The "developmental switch" model.},
  author={Nicolas Perrin},
  journal={Evolution; international journal of organic evolution},
  year={2012},
  volume={66 4},
  pages={947-56}
}
Why mating types exist at all is subject to much debate. Among hypotheses, mating types evolved to control organelle transmission during sexual reproduction, or to prevent inbreeding or same-clone mating. Here I review data from a diversity of taxa (including ciliates, algae, slime molds, ascomycetes, and basidiomycetes) to show that the structure and function of mating types run counter the above hypotheses. I argue instead for a key role in triggering developmental switches. Genomes must… CONTINUE READING
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