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dc.contributor.authorDelph, Lynda F.
dc.contributor.authorKelly, John K.
dc.date.accessioned2017-06-27T18:35:14Z
dc.date.available2017-06-27T18:35:14Z
dc.date.issued2014-01
dc.identifier.citationDelph, L. F. and Kelly, J. K. (2014), On the importance of balancing selection in plants. New Phytol, 201: 45–56. doi:10.1111/nph.12441en_US
dc.identifier.urihttp://hdl.handle.net/1808/24657
dc.descriptionThis is the peer reviewed version of the following article: Delph, L. F. and Kelly, J. K. (2014), On the importance of balancing selection in plants. New Phytol, 201: 45–56. doi:10.1111/nph.12441, which has been published in final form at http://doi.org/10.1111/nph.12441. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.en_US
dc.description.abstractBalancing selection refers to a variety of selective regimes that maintain advantageous genetic diversity within populations. We review the history of the ideas regarding the types of selection that maintain such polymorphism in flowering plants, notably heterozygote advantage, negative frequency-dependent selection, and spatial heterogeneity. One shared feature of these mechanisms is that whether an allele is beneficial or detrimental is conditional on its frequency in the population. We highlight examples of balancing selection on a variety of discrete traits. These include the well-referenced case of self-incompatibility and recent evidence from species with nuclear-cytoplasmic gynodioecy, both of which exhibit trans-specific polymorphism, a hallmark of balancing selection. We also discuss and give examples of how spatial heterogeneity in particular, which is often thought unlikely to allow protected polymorphism, can maintain genetic variation in plants (which are rooted in place) as a result of microhabitat selection. Lastly, we discuss limitations of the protected polymorphism concept for quantitative traits, where selection can inflate the genetic variance without maintaining specific alleles indefinitely. We conclude that while discrete-morph variation provides the most unambiguous cases of protected polymorphism, they represent only a fraction of the balancing selection at work in plants.en_US
dc.publisherWileyen_US
dc.subjectNegative frequency-dependent selectionen_US
dc.subjectNuclear-cytoplasmic Gynodioecyen_US
dc.subjectOverdominanceen_US
dc.subjectSpatial heterogeneityen_US
dc.subjectTrans-specific polymorphismen_US
dc.titleOn the importance of balancing selection in plantsen_US
dc.typeArticleen_US
kusw.kuauthorKelly, John K.
kusw.kudepartmentEcology and Evolutionary Biologyen_US
dc.identifier.doi10.1111/nph.12441en_US
kusw.oaversionScholarly/refereed, author accepted manuscripten_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.identifier.pmidPMC3886833en_US
dc.rights.accessrightsopenAccess


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