Maintaining genetic integrity with high promiscuity: Frequent hybridization with low introgression in multiple hybrid zones of Melocactus (Cactaceae)

Detalhes bibliográficos
Autor(a) principal: Khan, Gulzar
Data de Publicação: 2020
Outros Autores: Franco, Fernando F., Silva, Gislaine A.R., Bombonato, Juliana R., Machado, Marlon, Alonso, Diego P. [UNESP], Ribolla, Paulo E.M. [UNESP], Albach, Dirk C., Moraes, Evandro M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.ympev.2019.106642
http://hdl.handle.net/11449/197999
Resumo: Hybridization and introgression between species in contact/hybrid zones provide important insight into the genetic and ecological mechanisms of speciation. Cactaceae represents the most important radiation of true succulent angiosperms in the New World. This diversification continues to date, with species experiencing few intrinsic barriers to gene flow and the frequent occurrence of natural hybridization. Here, we used RAD-Seq single-nucleotide polymorphism (SNP) data to investigate the genetic architecture of hybridization in four hybrid zones hosting Melocactus concinnus and four congeneric species (M. ernestii, M. glaucescens, M. paucispinus, and M. zehntneri). Our results revealed that M. concinnus is highly promiscuous in sympatric areas and hybridizes with various species distributed in Morro do Chapéu (Diamantina Plateau, Bahia), eastern Brazil. However, the contemporary genomic introgression among the investigated species is very low (c. 2–5%), confirming that even in the face of hybridization, Melocactus species maintain their genetic integrity. The genomic cline approach showed a large fraction of loci deviating from a model of neutral introgression, where most of the loci are consistent with selection favoring parental genotypes. Our results suggest the occurrence of weak premating but strong postmating reproductive isolation in the analyzed cactus species. Furthermore, as most of the Melocactus species are restricted in distribution, hybridization might negatively affect their integrity if hybrids replace the parental species.
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spelling Maintaining genetic integrity with high promiscuity: Frequent hybridization with low introgression in multiple hybrid zones of Melocactus (Cactaceae)CactaceaeddRAD-SeqDiamantina PlateauHybridizationInterspecific gene flowXeric enclavesHybridization and introgression between species in contact/hybrid zones provide important insight into the genetic and ecological mechanisms of speciation. Cactaceae represents the most important radiation of true succulent angiosperms in the New World. This diversification continues to date, with species experiencing few intrinsic barriers to gene flow and the frequent occurrence of natural hybridization. Here, we used RAD-Seq single-nucleotide polymorphism (SNP) data to investigate the genetic architecture of hybridization in four hybrid zones hosting Melocactus concinnus and four congeneric species (M. ernestii, M. glaucescens, M. paucispinus, and M. zehntneri). Our results revealed that M. concinnus is highly promiscuous in sympatric areas and hybridizes with various species distributed in Morro do Chapéu (Diamantina Plateau, Bahia), eastern Brazil. However, the contemporary genomic introgression among the investigated species is very low (c. 2–5%), confirming that even in the face of hybridization, Melocactus species maintain their genetic integrity. The genomic cline approach showed a large fraction of loci deviating from a model of neutral introgression, where most of the loci are consistent with selection favoring parental genotypes. Our results suggest the occurrence of weak premating but strong postmating reproductive isolation in the analyzed cactus species. Furthermore, as most of the Melocactus species are restricted in distribution, hybridization might negatively affect their integrity if hybrids replace the parental species.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Federal de São Carlos Centro de Ciências Humanas e Biológicas Departamento de BiologiaUniversidade de São Paulo Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Programa de Pós-graduação em Biologia ComparadaUniversidade Estadual de Feira de SantanaBiotechnology Institute (IBTEC) & Biosciences Institute at Botucatu (IBB) São Paulo State University (UNESP)Institute for Biology and Environmental Sciences Carl von Ossietzky UniversityBiotechnology Institute (IBTEC) & Biosciences Institute at Botucatu (IBB) São Paulo State University (UNESP)FAPESP: 2014/25227-0FAPESP: 2014/26224-5Universidade Federal de São Carlos (UFSCar)Universidade de São Paulo (USP)Universidade Estadual de Feira de SantanaUniversidade Estadual Paulista (Unesp)Carl von Ossietzky UniversityKhan, GulzarFranco, Fernando F.Silva, Gislaine A.R.Bombonato, Juliana R.Machado, MarlonAlonso, Diego P. [UNESP]Ribolla, Paulo E.M. [UNESP]Albach, Dirk C.Moraes, Evandro M.2020-12-12T00:56:14Z2020-12-12T00:56:14Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.ympev.2019.106642Molecular Phylogenetics and Evolution, v. 142.1095-95131055-7903http://hdl.handle.net/11449/19799910.1016/j.ympev.2019.1066422-s2.0-85073249777Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMolecular Phylogenetics and Evolutioninfo:eu-repo/semantics/openAccess2021-10-22T17:02:40Zoai:repositorio.unesp.br:11449/197999Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T17:02:40Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Maintaining genetic integrity with high promiscuity: Frequent hybridization with low introgression in multiple hybrid zones of Melocactus (Cactaceae)
title Maintaining genetic integrity with high promiscuity: Frequent hybridization with low introgression in multiple hybrid zones of Melocactus (Cactaceae)
spellingShingle Maintaining genetic integrity with high promiscuity: Frequent hybridization with low introgression in multiple hybrid zones of Melocactus (Cactaceae)
Khan, Gulzar
Cactaceae
ddRAD-Seq
Diamantina Plateau
Hybridization
Interspecific gene flow
Xeric enclaves
title_short Maintaining genetic integrity with high promiscuity: Frequent hybridization with low introgression in multiple hybrid zones of Melocactus (Cactaceae)
title_full Maintaining genetic integrity with high promiscuity: Frequent hybridization with low introgression in multiple hybrid zones of Melocactus (Cactaceae)
title_fullStr Maintaining genetic integrity with high promiscuity: Frequent hybridization with low introgression in multiple hybrid zones of Melocactus (Cactaceae)
title_full_unstemmed Maintaining genetic integrity with high promiscuity: Frequent hybridization with low introgression in multiple hybrid zones of Melocactus (Cactaceae)
title_sort Maintaining genetic integrity with high promiscuity: Frequent hybridization with low introgression in multiple hybrid zones of Melocactus (Cactaceae)
author Khan, Gulzar
author_facet Khan, Gulzar
Franco, Fernando F.
Silva, Gislaine A.R.
Bombonato, Juliana R.
Machado, Marlon
Alonso, Diego P. [UNESP]
Ribolla, Paulo E.M. [UNESP]
Albach, Dirk C.
Moraes, Evandro M.
author_role author
author2 Franco, Fernando F.
Silva, Gislaine A.R.
Bombonato, Juliana R.
Machado, Marlon
Alonso, Diego P. [UNESP]
Ribolla, Paulo E.M. [UNESP]
Albach, Dirk C.
Moraes, Evandro M.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de São Carlos (UFSCar)
Universidade de São Paulo (USP)
Universidade Estadual de Feira de Santana
Universidade Estadual Paulista (Unesp)
Carl von Ossietzky University
dc.contributor.author.fl_str_mv Khan, Gulzar
Franco, Fernando F.
Silva, Gislaine A.R.
Bombonato, Juliana R.
Machado, Marlon
Alonso, Diego P. [UNESP]
Ribolla, Paulo E.M. [UNESP]
Albach, Dirk C.
Moraes, Evandro M.
dc.subject.por.fl_str_mv Cactaceae
ddRAD-Seq
Diamantina Plateau
Hybridization
Interspecific gene flow
Xeric enclaves
topic Cactaceae
ddRAD-Seq
Diamantina Plateau
Hybridization
Interspecific gene flow
Xeric enclaves
description Hybridization and introgression between species in contact/hybrid zones provide important insight into the genetic and ecological mechanisms of speciation. Cactaceae represents the most important radiation of true succulent angiosperms in the New World. This diversification continues to date, with species experiencing few intrinsic barriers to gene flow and the frequent occurrence of natural hybridization. Here, we used RAD-Seq single-nucleotide polymorphism (SNP) data to investigate the genetic architecture of hybridization in four hybrid zones hosting Melocactus concinnus and four congeneric species (M. ernestii, M. glaucescens, M. paucispinus, and M. zehntneri). Our results revealed that M. concinnus is highly promiscuous in sympatric areas and hybridizes with various species distributed in Morro do Chapéu (Diamantina Plateau, Bahia), eastern Brazil. However, the contemporary genomic introgression among the investigated species is very low (c. 2–5%), confirming that even in the face of hybridization, Melocactus species maintain their genetic integrity. The genomic cline approach showed a large fraction of loci deviating from a model of neutral introgression, where most of the loci are consistent with selection favoring parental genotypes. Our results suggest the occurrence of weak premating but strong postmating reproductive isolation in the analyzed cactus species. Furthermore, as most of the Melocactus species are restricted in distribution, hybridization might negatively affect their integrity if hybrids replace the parental species.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-12T00:56:14Z
2020-12-12T00:56:14Z
2020-01-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.ympev.2019.106642
Molecular Phylogenetics and Evolution, v. 142.
1095-9513
1055-7903
http://hdl.handle.net/11449/197999
10.1016/j.ympev.2019.106642
2-s2.0-85073249777
url http://dx.doi.org/10.1016/j.ympev.2019.106642
http://hdl.handle.net/11449/197999
identifier_str_mv Molecular Phylogenetics and Evolution, v. 142.
1095-9513
1055-7903
10.1016/j.ympev.2019.106642
2-s2.0-85073249777
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Molecular Phylogenetics and Evolution
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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