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In search of the Goldilocks zone for hybrid speciation II: hard times for hybrid speciation?

dc.contributor.authorBlanckaert, Alexandre
dc.contributor.authorSriram, Vedanth
dc.contributor.authorBank, Claudia
dc.date.accessioned2023-09-29T17:35:19Z
dc.date.available2023-09-29T17:35:19Z
dc.date.issued2023-07
dc.description.abstractHybridization opens a unique window for observing speciation mechanisms and is a potential engine of speciation. One controversially discussed outcome of hybridization is homoploid hybrid speciation by reciprocal sorting, where a hybrid population maintains a mixed combination of the parental genetic incompatibilities, preventing further gene exchange between the newly formed population and the two parental sources. Previ ous work showed that, for specific linkage architectures (i.e., the genomic location and order of hybrid incompatibilities), reciprocal sorting could reliably result in hybrid speciation. Yet, the sorting of incompatibilities creates a risk of population extinction. To understand how the demographic consequences of the purging of incompatibilities interact with the formation of a hybrid species, we model an isolated hybrid population resulting from a single admixture event. We study how population size, linkage architecture, and the strength of the incompatibility affect survival of the hybrid population, resolution/purging of the genetic incompatibilities and the probability of observing hybrid speciation. We demonstrate that the extinction risk is highest for intermediately strong hybrid incompatibilities. In addition, the linkage architecture displaying the highest hybrid speciation probabilities changes drastically with population size. Overall, this indicates that population dynamics can strongly affect the outcome of hybridization and the hybrid speciation probabilitypt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAlexandre Blanckaert, Vedanth Sriram, Claudia Bank, In search of the Goldilocks zone for hybrid speciation II: hard times for hybrid speciation?, Evolution, 2023;, qpad125, https://doi.org/10.1093/evolut/qpad125pt_PT
dc.identifier.doi10.1093/evolut/qpad125pt_PT
dc.identifier.urihttp://hdl.handle.net/10451/59519
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherOxford University Presspt_PT
dc.relationERC Starting Grant 804569 (FIT2GO) and HFSP Young Investigator Grant RGY0081/2020pt_PT
dc.relationNational Institutes of Health (NIH) grant R35 GM139412 to Bret Payseurpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.titleIn search of the Goldilocks zone for hybrid speciation II: hard times for hybrid speciation?pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleEvolutionpt_PT
person.familyNameBlanckaert
person.givenNameAlexandre
person.identifier.ciencia-id6E17-B6BB-7A27
person.identifier.orcid0000-0003-2735-7491
person.identifier.scopus-author-id55847580500
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6ec7c739-bdfe-4103-a8ea-1c9cfe118e9f
relation.isAuthorOfPublication.latestForDiscovery6ec7c739-bdfe-4103-a8ea-1c9cfe118e9f

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