Evolutionary units delimitation and continental multilocus phylogeny of the hyperdiverse catfish genus Hypostomus

dc.creatorQueiroz, Luiz Jardim de
dc.creatorCardoso, Yamila
dc.creatorJacot-des-Combes, Cécile
dc.creatorBahechar, Ilham Anne
dc.creatorLucena, Carlos Alberto
dc.creatorPy-Daniel, Lucia Rapp
dc.creatorSoares, Luisa Maria Sarmento
dc.creatorNylinder, Stephan
dc.creatorOliveira, Claudio
dc.creatorParente, Thiago Estevam
dc.creatorTorrente-Vilara, Gislene
dc.creatorCovain, Raphael
dc.creatorBuckup, Paulo
dc.creatorMontoya-Burgos, Juan I.
dc.date2021-02-01T19:56:57Z
dc.date2021-02-01T19:56:57Z
dc.date2020
dc.date.accessioned2023-09-26T20:42:35Z
dc.date.available2023-09-26T20:42:35Z
dc.identifierQUEIROZ, Luiz Jardim de et al. Evolutionary units delimitation and continental multilocus phylogeny of the hyperdiverse catfish genus Hypostomus. Molecular Phylogenetics and Evolution, v. 145, 106711, 15p, 2020.
dc.identifier1055-7903
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/45911
dc.identifier10.1016/j.ympev.2019.106711
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8862440
dc.descriptionWith 149 currently recognized species, Hypostomus is one of the most species-rich catfish genera in the world, widely distributed over most of the Neotropical region. To clarify the evolutionary history of this genus, we reconstructed a comprehensive phylogeny of Hypostomus based on four nuclear and two mitochondrial markers. A total of 206 specimens collected from the main Neotropical rivers were included in the present study. Combining morphology and a Bayesian multispecies coalescent (MSC) approach, we recovered 85 previously recognized species plus 23 putative new species, organized into 118 ‘clusters’. We presented the Cluster Credibility (CC) index that provides numerical support for every hypothesis of cluster delimitation, facilitating delimitation decisions. We then examined the correspondence between the morphologically identified species and their inter-specific COI barcode pairwise divergence. The mean COI barcode divergence between morphological sisters species was 1.3 ± 1.2%, and only in 11% of the comparisons the divergence was ≥2%. This indicates that the COI barcode threshold of 2% classically used to delimit fish species would seriously underestimate the number of species in Hypostomus, advocating for a taxon-specific COI-based inter-specific divergence threshold to be used only when approximations of species richness are needed. The phylogeny of the 108 Hypostomus species, together with 35 additional outgroup species, confirms the monophyly of the genus. Four well-supported main lineages were retrieved, hereinafter called super-groups: Hypostomus cochliodon, H. hemiurus, H. auroguttatus, and H. plecostomus super-groups. We present a compilation of diagnostic characters for each super-group. Our phylogeny lays the foundation for future studies on biogeography and on macroevolution to better understand the successful radiation of this Neotropical fish genus.
dc.formatapplication/pdf
dc.languageeng
dc.publisherElsevier
dc.rightsrestricted access
dc.subjectHypostominae
dc.subjectAbordagem coalescente multiespécie
dc.subjectDelimitação de espécies
dc.subjectCódigo de barras de DNA
dc.subjectÍndice de credibilidade do cluster
dc.subjectDiversidade oculta
dc.subjectHypostominae
dc.subjectMultispecies coalescent approach
dc.subjectSpecies delimitation
dc.subjectDNA barcode
dc.subjectCluster credibility index
dc.subjectHidden diversity
dc.titleEvolutionary units delimitation and continental multilocus phylogeny of the hyperdiverse catfish genus Hypostomus
dc.typeArticle


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