Population size as a major determinant of mating system and population genetic differentiation in a narrow endemic chasmophyte

Background Mating system is one of the major determinants of intra- and interspecific genetic structure, but may vary within and between plant populations. Our study model included all known populations of Moehringia tommasinii (Caryophyllaceae), a narrow endemic plant inhabiting rock crevices in th...

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Autores: Surina, Boštjan, Balant, Manica, Glasnović, Peter, Radosavljević, Ivan, Fišer Pečnikar, Živa, Fujs, Nataša, Castro, Silvia
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/334381
Acceso en línea:http://hdl.handle.net/10261/334381
https://doi.org/10.1186/s12870-023-04384-8
Access Level:acceso abierto
Palabra clave:Chasmophyte
Conservation genetics
Flower morphology
Hybridization
Introgression
Mating system
Microsatellites
Moehringia
Pollination biology
Population size
Selfng syndrome
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spelling Population size as a major determinant of mating system and population genetic differentiation in a narrow endemic chasmophyteSurina, BoštjanBalant, ManicaGlasnović, PeterRadosavljević, IvanFišer Pečnikar, ŽivaFujs, NatašaCastro, SilviaChasmophyteConservation geneticsFlower morphologyHybridizationIntrogressionMating systemMicrosatellitesMoehringiaPollination biologyPopulation sizeSelfng syndromeBackground Mating system is one of the major determinants of intra- and interspecific genetic structure, but may vary within and between plant populations. Our study model included all known populations of Moehringia tommasinii (Caryophyllaceae), a narrow endemic plant inhabiting rock crevices in the northwestern Adriatic, and some populations of co-occurring and widespread M. muscosa, an ecologically divergent relative with an overlapping flowering period. We performed reciprocal crosses within and between taxa and used molecular markers to assess the extent of gene flow within and between populations and taxa. Using coefficient of inbreeding, population size, seed weight, pollen-to-ovule ratio, and flower display size, we also looked for evidence of a selfing syndrome. Results A surprisingly high variation in mating systems was observed among populations of M. tommasinii. These populations exhibited genetic structuring, with their size positively correlated with both seed weight and pollen production. Although a selfing syndrome could not be confirmed as the majority of selfing resulted from allogamous treatments, the occurrence of selfing was notable. In the presence of M. muscosa, at a site where both species coexist closely, a distinct pattern of fruit production was observed in M. tommasinii following various pollination treatments. Molecular and morphometric data provided evidence of hybridization followed by local extinction at this site. Conclusions Population size proved to be the most important factor affecting the mating system in genetically structured populations of M. tommasinii. Lighter seeds and lower pollen production observed in populations with pronounced selfing do not provide enough evidence for the selfing syndrome. Detected gene flow between M. tommasinii and the sympatric M. muscosa suggested weak reproductive barriers between the taxa, which could pose a conservation problems for the former species. Hybridization leading to local extinction may also resulted in floral polymorphism and disruption of mating patterns of M. tommasinii.This work was supported by the European Union through a Programme INTERREG V-A Slovenia – Croatia 2014–2020 [#project LIKE SLO–HR225] and COST action [#ConservePlants CA18201].Abstract Background Study system Results Discussion Conclusions Availability of data and materials References Acknowledgements Funding Author information Ethics declarations Additional information Supplementary Information Rights and permissions About this articlePeer reviewedSpringer NatureInterregConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2023202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/334381https://doi.org/10.1186/s12870-023-04384-8reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1186/s12870-023-04384-8Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3343812026-05-22T06:33:51Z
dc.title.none.fl_str_mv Population size as a major determinant of mating system and population genetic differentiation in a narrow endemic chasmophyte
title Population size as a major determinant of mating system and population genetic differentiation in a narrow endemic chasmophyte
spellingShingle Population size as a major determinant of mating system and population genetic differentiation in a narrow endemic chasmophyte
Surina, Boštjan
Chasmophyte
Conservation genetics
Flower morphology
Hybridization
Introgression
Mating system
Microsatellites
Moehringia
Pollination biology
Population size
Selfng syndrome
title_short Population size as a major determinant of mating system and population genetic differentiation in a narrow endemic chasmophyte
title_full Population size as a major determinant of mating system and population genetic differentiation in a narrow endemic chasmophyte
title_fullStr Population size as a major determinant of mating system and population genetic differentiation in a narrow endemic chasmophyte
title_full_unstemmed Population size as a major determinant of mating system and population genetic differentiation in a narrow endemic chasmophyte
title_sort Population size as a major determinant of mating system and population genetic differentiation in a narrow endemic chasmophyte
dc.creator.none.fl_str_mv Surina, Boštjan
Balant, Manica
Glasnović, Peter
Radosavljević, Ivan
Fišer Pečnikar, Živa
Fujs, Nataša
Castro, Silvia
author Surina, Boštjan
author_facet Surina, Boštjan
Balant, Manica
Glasnović, Peter
Radosavljević, Ivan
Fišer Pečnikar, Živa
Fujs, Nataša
Castro, Silvia
author_role author
author2 Balant, Manica
Glasnović, Peter
Radosavljević, Ivan
Fišer Pečnikar, Živa
Fujs, Nataša
Castro, Silvia
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Interreg
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Chasmophyte
Conservation genetics
Flower morphology
Hybridization
Introgression
Mating system
Microsatellites
Moehringia
Pollination biology
Population size
Selfng syndrome
topic Chasmophyte
Conservation genetics
Flower morphology
Hybridization
Introgression
Mating system
Microsatellites
Moehringia
Pollination biology
Population size
Selfng syndrome
description Background Mating system is one of the major determinants of intra- and interspecific genetic structure, but may vary within and between plant populations. Our study model included all known populations of Moehringia tommasinii (Caryophyllaceae), a narrow endemic plant inhabiting rock crevices in the northwestern Adriatic, and some populations of co-occurring and widespread M. muscosa, an ecologically divergent relative with an overlapping flowering period. We performed reciprocal crosses within and between taxa and used molecular markers to assess the extent of gene flow within and between populations and taxa. Using coefficient of inbreeding, population size, seed weight, pollen-to-ovule ratio, and flower display size, we also looked for evidence of a selfing syndrome. Results A surprisingly high variation in mating systems was observed among populations of M. tommasinii. These populations exhibited genetic structuring, with their size positively correlated with both seed weight and pollen production. Although a selfing syndrome could not be confirmed as the majority of selfing resulted from allogamous treatments, the occurrence of selfing was notable. In the presence of M. muscosa, at a site where both species coexist closely, a distinct pattern of fruit production was observed in M. tommasinii following various pollination treatments. Molecular and morphometric data provided evidence of hybridization followed by local extinction at this site. Conclusions Population size proved to be the most important factor affecting the mating system in genetically structured populations of M. tommasinii. Lighter seeds and lower pollen production observed in populations with pronounced selfing do not provide enough evidence for the selfing syndrome. Detected gene flow between M. tommasinii and the sympatric M. muscosa suggested weak reproductive barriers between the taxa, which could pose a conservation problems for the former species. Hybridization leading to local extinction may also resulted in floral polymorphism and disruption of mating patterns of M. tommasinii.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/334381
https://doi.org/10.1186/s12870-023-04384-8
url http://hdl.handle.net/10261/334381
https://doi.org/10.1186/s12870-023-04384-8
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1186/s12870-023-04384-8
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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