There and back again: when and how the world's richest snake family (Dipsadidae) dispersed and speciated across the Neotropical region

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dc.contributorLab. Coleções Zoológicaspt_BR
dc.contributorPrograma de Pós-Graduação em Ciências – Toxinologia (PPGTox)pt_BR
dc.contributor.authorSerrano, Filipe C.pt_BR
dc.contributor.authorPontes-Nogueira, Matheuspt_BR
dc.contributor.authorSawaya, Ricardo J.pt_BR
dc.contributor.authorAlencar, Laura R. V.pt_BR
dc.contributor.authorNogueira, Cristiano C.pt_BR
dc.contributor.authorGrazziotin, Felipe Gobbipt_BR
dc.description.abstractAim The widespread megadiverse Neotropical snake family Dipsadidae occurs in a large range of diverse habitats. Therefore, it represents an excellent model to study the diversification of Neotropical biota. Herein, by generating a time-calibrated species-level phylogeny, we investigate the origin and historical biogeography of Dipsadidae and test if its two main Neotropical subfamilies, Xenodontinae and Dipsadinae, have different geographical origins. Location Neotropical region. Taxon Dipsadidae (Serpentes). Methods We generated a new Bayesian time-calibrated phylogeny based on published sequences from six genes for 344 species, including 287 species of Dipsadidae. We subsequently estimated ancestral areas of distribution by comparing models in BioGeoBEARS: DEC (subset sympatry, narrow vicariance), DIVALIKE (narrow and wide vicariance), BAYAREALIKE (no vicariance and widespread sympatry), also testing jump dispersal. We also estimated shifts in the diversification of this group using BAMM, exploring possible relationships with its historical biogeography. Results The best models show that Dipsadidae likely originated approximately 50 million years ago (mya) in Asia. Dispersal was a fundamental process in its historical biogeography. The DEC model with jump dispersal indicated that this family underwent a range extension from Asia and posterior vicariance of North and Central America ancestors. Both Xenodontinae and Dipsadinae originated in Central America and dispersed to South America during Middle Eocene, but did so to different regions (cis and trans-Andean South America, respectively). Xenodontinae entered cis-Andean South America around 39 mya and jump dispersed to the West Indies around 33 mya, while Dipsadinae entered trans-Andean South America multiple times 20–38 mya. The diversification rate decreased through time, except for a clade within Dipsadinae composed of the Dipsadini tribe and the Atractus and Geophis genera. Main Conclusions Our results show that Dipsadidae has an Asian origin and that the two main Neotropical subfamilies originated in Central America, later dispersing to South America in different time periods. This difference is also reflected in the higher diversification rate for the ‘goo-eaters’ in the Dipsadinae subfamily. The current biogeographical patterns of the family Dipsadidae, the most species-rich snake family in the world, have likely been shaped by complex evolutionary and geological processes such as Eocene land bridges, Andean uplift and the formation of the Panama isthmus.pt_BR
dc.description.sponsorship(FAPESP) Fundação de Amparo à Pesquisa do Estado de São Paulopt_BR
dc.description.sponsorship(CAPES) Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorship(CNPq) Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.relation.ispartofJournal of Biogeographypt_BR
dc.rightsRestricted accesspt_BR
dc.titleThere and back again: when and how the world's richest snake family (Dipsadidae) dispersed and speciated across the Neotropical regionpt_BR
dc.contributor.external(USP) Universidade de São Paulopt_BR
dc.contributor.external(UFABC) Universidade Federal do ABCpt_BR
dc.contributor.externalYale Universitypt_BR
dc.subject.keywordancestral areapt_BR
dc.subject.keywordhistorical biogeographypt_BR
dc.relation.ispartofabbreviatedJ Biogeogrpt_BR
dc.identifier.citationabntin press, 1-16, 2024.pt_BR
dc.identifier.citationvancouver2024; in press: 1-16pt_BR
dc.contributor.butantanGrazziotin, Felipe Gobbi|:Pesquisador|:Docente PPGTOX|:Lab. Coleções Zoológicas|:Programa de Pós-Graduação em Ciências – Toxinologia (PPGTox)pt_BR
dc.sponsorship.butantan(FAPESP) Fundação de Amparo à Pesquisa do Estado de São Paulo¦¦pt_BR
dc.sponsorship.butantan(CAPES) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior¦¦pt_BR
dc.sponsorship.butantan(CNPq) Conselho Nacional de Desenvolvimento Científico e Tecnológico¦¦pt_BR
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