High fusibility and chimera prevalence in an invasive colonial ascidian

The formation of chimeric entities through colony fusion has been hypothesized to favour colonisation success and resilience in modular organisms. In particular, it can play an important role in promoting the invasiveness of introduced species. We studied prevalence of chimerism and performed fusion...

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Detalles Bibliográficos
Autores: Casso, M., Tagliapietra, D., Turon Barrera, Xavier, Pascual, M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/151391
Acceso en línea:https://hdl.handle.net/2445/151391
Access Level:acceso abierto
Palabra clave:Urocordats
Colònies animals
Sea squirts
Animal colonies
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spelling High fusibility and chimera prevalence in an invasive colonial ascidianCasso, M.Tagliapietra, D.Turon Barrera, XavierPascual, M.UrocordatsColònies animalsSea squirtsAnimal coloniesThe formation of chimeric entities through colony fusion has been hypothesized to favour colonisation success and resilience in modular organisms. In particular, it can play an important role in promoting the invasiveness of introduced species. We studied prevalence of chimerism and performed fusion experiments in Mediterranean populations of the worldwide invasive colonial ascidian Didemnum vexillum. We analysed single zooids by whole genome amplification and genotyping-by-sequencing and obtained genotypic information for more than 2,000 loci per individual. In the prevalence study, we analysed nine colonies and identified that 44% of them were chimeric, composed of 2-3 different genotypes. In the fusion experiment 15 intra- and 30 intercolony pairs were assayed but one or both fragments regressed and died in ~45% of the pairs. Among those that survived for the length of the experiment (30 d), 100% isogeneic and 31% allogeneic pairs fused. Fusion was unlinked to global genetic relatedness since the genetic distance between fused or non-fused intercolony pairs did not differ significantly. We could not detect any locus directly involved in allorecognition, but we cannot preclude the existence of a histocompatibility mechanism. We conclude that chimerism occurs frequently in D. vexillum and may be an important factor to enhance genetic diversity and promote its successful expansion.Nature Publishing Group2020202020192020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/151391Articles publicats en revistes (Genètica, Microbiologia i Estadística)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1038/s41598-019-51950-yScientific Reports, 2019, vol. 9, p. 15673https://doi.org/10.1038/s41598-019-51950-ycc-by (c) Casso, M. et al., 2019http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1513912026-05-29T05:05:01Z
dc.title.none.fl_str_mv High fusibility and chimera prevalence in an invasive colonial ascidian
title High fusibility and chimera prevalence in an invasive colonial ascidian
spellingShingle High fusibility and chimera prevalence in an invasive colonial ascidian
Casso, M.
Urocordats
Colònies animals
Sea squirts
Animal colonies
title_short High fusibility and chimera prevalence in an invasive colonial ascidian
title_full High fusibility and chimera prevalence in an invasive colonial ascidian
title_fullStr High fusibility and chimera prevalence in an invasive colonial ascidian
title_full_unstemmed High fusibility and chimera prevalence in an invasive colonial ascidian
title_sort High fusibility and chimera prevalence in an invasive colonial ascidian
dc.creator.none.fl_str_mv Casso, M.
Tagliapietra, D.
Turon Barrera, Xavier
Pascual, M.
author Casso, M.
author_facet Casso, M.
Tagliapietra, D.
Turon Barrera, Xavier
Pascual, M.
author_role author
author2 Tagliapietra, D.
Turon Barrera, Xavier
Pascual, M.
author2_role author
author
author
dc.subject.none.fl_str_mv Urocordats
Colònies animals
Sea squirts
Animal colonies
topic Urocordats
Colònies animals
Sea squirts
Animal colonies
description The formation of chimeric entities through colony fusion has been hypothesized to favour colonisation success and resilience in modular organisms. In particular, it can play an important role in promoting the invasiveness of introduced species. We studied prevalence of chimerism and performed fusion experiments in Mediterranean populations of the worldwide invasive colonial ascidian Didemnum vexillum. We analysed single zooids by whole genome amplification and genotyping-by-sequencing and obtained genotypic information for more than 2,000 loci per individual. In the prevalence study, we analysed nine colonies and identified that 44% of them were chimeric, composed of 2-3 different genotypes. In the fusion experiment 15 intra- and 30 intercolony pairs were assayed but one or both fragments regressed and died in ~45% of the pairs. Among those that survived for the length of the experiment (30 d), 100% isogeneic and 31% allogeneic pairs fused. Fusion was unlinked to global genetic relatedness since the genetic distance between fused or non-fused intercolony pairs did not differ significantly. We could not detect any locus directly involved in allorecognition, but we cannot preclude the existence of a histocompatibility mechanism. We conclude that chimerism occurs frequently in D. vexillum and may be an important factor to enhance genetic diversity and promote its successful expansion.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/151391
url https://hdl.handle.net/2445/151391
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1038/s41598-019-51950-y
Scientific Reports, 2019, vol. 9, p. 15673
https://doi.org/10.1038/s41598-019-51950-y
dc.rights.none.fl_str_mv cc-by (c) Casso, M. et al., 2019
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Casso, M. et al., 2019
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
dc.source.none.fl_str_mv Articles publicats en revistes (Genètica, Microbiologia i Estadística)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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