Repository logo
 
Publication

Diversification of Aeonium Species Across Macaronesian Archipelagos: Correlations Between Genome-Size Variation and Their Conservation Status

2021-02Journal article Open access
Simple item page
dc.contributor.authorBrilhante, Miguel
dc.contributor.authorRoxo, Guilherme
dc.contributor.authorCatarino, Sílvia
dc.contributor.authorDos Santos, Patrícia
dc.contributor.authorReyes-Betancort, J. Alfredo
dc.contributor.authorCaujapé-Castells, Juli
dc.contributor.authorSequeira, Miguel Menezes
dc.contributor.authorTalhinhas, Pedro
dc.contributor.authorRomeiras, Maria M.
dc.date.accessioned2021-08-11T13:27:59Z
dc.date.available2021-08-11T13:27:59Z
dc.date.issued2021-02
dc.description.abstractThe rich endemic flora of the Macaronesian Islands places these oceanic archipelagos among the top biodiversity hotspots worldwide. The radiations that have determined the evolution of many of these insular lineages resulted in a wealth of endemic species, many of which occur in a wide range of ecological niches, but show small distribution areas in each of them. Aeonium (Crassulaceae) is the most speciose lineage in the Canary Islands (ca. 40 taxa), and as such can be considered a good model system to understand the diversification dynamics of oceanic endemic floras. The present study aims to assess the genome size variation within Aeonium distribution, i.e., the Macaronesian archipelagos of Madeira, Canaries and Cabo Verde, and analyse it together with information on distribution (i.e., geography and conservation status), taxonomy (i.e., sections), morphological traits (i.e., growth-form), geological data (i.e., island’s geological age), and environmental variables (i.e., altitude, annual mean temperature, and precipitation). Based on extensive fieldwork, a cytogeographic screening of 24 Aeonium species was performed. The conservation status of these species was assessed based on IUCN criteria. 61% of the taxa were found to be threatened (4% Endangered and 57% Vulnerable). For the first time, the genome size of a comprehensive sample of Aeonium across the Macaronesian archipelagos was estimated, and considerable differences in Cx-values were found, ranging from0.984 pg (A. dodrantale) to 2.768 pg (A. gorgoneum). An overall positive correlation between genome size and conservation status was found, with the more endangered species having the larger genomes on average. However, only slight relationships were found between genome size, morphological traits, and environmental variables. These results underscore the importance of characterizing the cytogenomic diversity and conservation status of endemic plants found in Macaronesian Islands, providing, therefore, new data to establish conservation priorities.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBrilhante M, Roxo G, Catarino S, dos Santos P, Reyes-Betancort JA, Caujapé-Castells J, Sequeira MM, Talhinhas P and Romeiras MM (2021) Diversification of Aeonium Species Across Macaronesian Archipelagos: Correlations Between Genome-Size Variation and Their Conservation Status. Front. Ecol. Evol. 9:607338. doi: 10.3389/fevo.2021.607338pt_PT
dc.identifier.doi10.3389/fevo.2021.607338pt_PT
dc.identifier.issn2296-701X
dc.identifier.urihttp://hdl.handle.net/10451/49286
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontierspt_PT
dc.relationCVAgrobiodiversity/333111699pt_PT
dc.relationConservation planning in tropical regions under climate change: a case-study of Angola flora.
dc.relationOn the origin of Aeonium´s diversification: a case of adptive radiation
dc.relationUID/BIA/00329/2021pt_PT
dc.relation.publisherversionhttps://www.frontiersin.org/articles/10.3389/fevo.2021.607338/fullpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectconservationpt_PT
dc.subjectcytogenomicspt_PT
dc.subjectDNA flow cytometrypt_PT
dc.subjectflorapt_PT
dc.subjectendemic speciespt_PT
dc.subjectoceanic islandspt_PT
dc.subjectRAMAS Red Listpt_PT
dc.subjectthreatened speciespt_PT
dc.titleDiversification of Aeonium Species Across Macaronesian Archipelagos: Correlations Between Genome-Size Variation and Their Conservation Statuspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleConservation planning in tropical regions under climate change: a case-study of Angola flora.
oaire.awardTitleOn the origin of Aeonium´s diversification: a case of adptive radiation
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F120054%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PD%2FBD%2F128367%2F2017/PT
oaire.citation.titleFrontiers in Ecology and Evolutionpt_PT
oaire.citation.volume9pt_PT
person.familyNameBrilhante
person.familyNamedos Santos
person.familyNameRomeiras
person.givenNameMiguel
person.givenNamePatrícia
person.givenNameMaria
person.identifier1090198
person.identifier520836
person.identifier.ciencia-id621C-BFF3-0AB9
person.identifier.ciencia-id3912-A185-F577
person.identifier.ciencia-id6A1C-085E-9038
person.identifier.orcid0000-0003-0296-9002
person.identifier.orcid0000-0003-2199-3331
person.identifier.orcid0000-0002-9373-6302
person.identifier.ridY-3120-2018
person.identifier.ridJ-4552-2013
person.identifier.scopus-author-id15842082800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationeee9e3b8-5d83-405f-82ba-16b4ea553fe8
relation.isAuthorOfPublicationdc9d8208-10f2-4c35-82b1-a82707efcc9a
relation.isAuthorOfPublicationea7b586c-693d-44b0-a338-990949ac6e02
relation.isAuthorOfPublication.latestForDiscoveryeee9e3b8-5d83-405f-82ba-16b4ea553fe8
relation.isProjectOfPublication2bde2522-772f-416a-a338-ed7add6d182c
relation.isProjectOfPublication98f6956c-cbf5-402a-85d9-a2b45f46cd08
relation.isProjectOfPublication.latestForDiscovery2bde2522-772f-416a-a338-ed7add6d182c

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
REP-LEAF-Aeonium-fevo-09-607338.pdf
Size:
2.62 MB
Format:
Adobe Portable Document Format
Download

Collections

cE3c - Artigos em Revistas Internacionais