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  Evolution of mating types in finite populations: the precarious advantage of being rare

Czuppon, P., & Rogers, D. W. (2019). Evolution of mating types in finite populations: the precarious advantage of being rare. Journal of Evolutionary Biology, 32(11), 1290-1299. doi:10.1111/jeb.13528.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-7013-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-1D13-6
Genre: Journal Article

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Czuppon_et_al-2019-Journal_of_Evolutionary_Biology.pdf (Publisher version), 926KB
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Czuppon, Peter1, Author              
Rogers, David W.2, Author              
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1Department Evolutionary Theory, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445641              
2Department Microbial Population Biology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_2421699              

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 Abstract: Sexually reproducing populations with self-incompatibility bear the cost of limiting potential mates to individuals of a different type. Rare mating types escape this cost since they are unlikely to encounter incompatible partners, leading to the deterministic prediction of continuous invasion by new mutants and an ever increasing number of types. However, rare types are also at an increased risk of being lost by random drift. Calculating the number of mating types that a population can maintain requires consideration of both the deterministic advantages and the stochastic risks. By comparing the relative importance of selection and drift, we show that a population of size N can maintain a maximum of approximately N 1/3 mating types. Although the number of mating types in a population is quite stable, the rare type advantage promotes turnover of types. We derive explicit formulas for both the invasion and turnover probabilities in finite populations. Being vanishingly rare is thus a blessing and a curse associated with both universal compatibility and a high risk of extinction.

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Language(s): eng - English
 Dates: 2019-06-282019-04-042019-09-032019-09-222019-11
 Publication Status: Published in print
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 Identifiers: DOI: 10.1111/jeb.13528
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Title: Journal of Evolutionary Biology
  Other : J. Evol. Biol.
Source Genre: Journal
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Publ. Info: Basel, Switzerland : Birkhäuser
Pages: - Volume / Issue: 32 (11) Sequence Number: - Start / End Page: 1290 - 1299 Identifier: ISSN: 1010-061X
CoNE: https://pure.mpg.de/cone/journals/resource/954925584241