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Deep mitochondrial divergence within a Heliconius butterfly species is not explained by cryptic speciation or endosymbiotic bacteria

dc.creatorMuñoz, Astrid G
dc.creatorBaxter, Simon W
dc.creatorLinares, Mauricio
dc.creatorJiggins, Chris D
dc.creator.googleMũoz, Astrid Gspa
dc.creator.googleBaxter, Simon Wspa
dc.creator.googleLinares, Mauriciospa
dc.creator.googleJiggins, Chris Dspa
dc.date.accessioned2020-05-07T14:29:23Z
dc.date.available2020-05-07T14:29:23Z
dc.date.created2011
dc.date.issued2011
dc.description.abstractBackground: Cryptic population structure can be an indicator of incipient speciation or historical processes. We investigated a previously documented deep break in the mitochondrial haplotypes of Heliconius erato chestertonii to explore the possibility of cryptic speciation, and also the possible presence of endosymbiont bacteria that might drive mitochondrial population structure. Results: Among a sample of 315 individuals from 16 populations of western Colombia, two principal mtDNA clades were detected with 2.15% divergence and we confirmed this structure was weakly associated with geography. The first mtDNA clade included 87% of individuals from northern populations and was the sister group of H. erato members of Andes western, while the second clade contained most individuals from southern populations (78%), which shared haplotypes with an Ecuadorian race of H. erato. In contrast, analysis using AFLP markers showed H. e. chestertonii to be a genetically homogeneous species with no association between mitochondrial divergence and AFLP structure. The lack of congruence between molecular markers suggests that cryptic speciation is not a plausible explanation for the deep mitochondrial divergence in H. e chestertonii. We also carried out the first tests for the presence of endosymbiontic bacteria in Heliconius, and identified two distinct lineages of Wolbachia within H. e. chestertonii. However, neither of the principal mitochondrial clades of H. e. chestertonii was directly associated with the patterns of infection. Conclusions: We conclude that historical demographic processes are the most likely explanation for the high mitochondrial differentiation in H. e. chestertonii, perhaps due to gene flow between Cauca valley H. e. chestertonii and west Pacific slope populations of H. erato. © 2011 Mũoz et al; licensee BioMed Central Ltd.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1186/1471-2148-11-358
dc.identifier.issn1471-2148
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/21893
dc.language.isoengspa
dc.relation.citationIssueNo. 1
dc.relation.citationTitleBMC Evolutionary Biology
dc.relation.citationVolumeVol. 11
dc.relation.ispartofBMC Evolutionary Biology, ISSN: 1471-2148 Vol. 11, No. 1 (2011)spa
dc.relation.urihttps://bmcevolbiol.biomedcentral.com/articles/10.1186/1471-2148-11-358spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.ddcInvertebradosspa
dc.subject.keywordCryptic Speciationspa
dc.subject.keywordHybrid zonespa
dc.subject.keywordAmplify fragment length polymorphismspa
dc.subject.keywordEndosymbiotic bacteriumspa
dc.titleDeep mitochondrial divergence within a Heliconius butterfly species is not explained by cryptic speciation or endosymbiotic bacteriaspa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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