A comprehensive phylogeny of dwarf geckos of the genus Lygodactylus, with insights into their systematics and morphological variation

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Autor(es): dc.contributorTechnical University of Braunschweig-
Autor(es): dc.contributorState Natural History Museum of Braunschweig-
Autor(es): dc.contributorRutgers University-Newark-
Autor(es): dc.contributorUniversity of Potsdam-
Autor(es): dc.contributorUniversity of Florida-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorSanta Fe College-
Autor(es): dc.contributorDivision of Herpetology-
Autor(es): dc.contributorZoologische Staatssammlung München (ZSM-SNSB)-
Autor(es): dc.contributorVillanova University-
Autor(es): dc.creatorGippner, Sven-
Autor(es): dc.creatorTravers, Scott L.-
Autor(es): dc.creatorScherz, Mark D.-
Autor(es): dc.creatorColston, Timothy J.-
Autor(es): dc.creatorLyra, Mariana L.-
Autor(es): dc.creatorMohan, Ashwini V.-
Autor(es): dc.creatorMultzsch, Malte-
Autor(es): dc.creatorNielsen, Stuart V.-
Autor(es): dc.creatorRancilhac, Loïs-
Autor(es): dc.creatorGlaw, Frank-
Autor(es): dc.creatorBauer, Aaron M.-
Autor(es): dc.creatorVences, Miguel-
Data de aceite: dc.date.accessioned2025-08-21T15:31:59Z-
Data de disponibilização: dc.date.available2025-08-21T15:31:59Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2021-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.ympev.2021.107311-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/222466-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/222466-
Descrição: dc.descriptionThe 71 currently known species of dwarf geckos of the genus Lygodactylus are a clade of biogeographic interest due to their occurrence in continental Africa, Madagascar, and South America. Furthermore, because many species are morphologically cryptic, our knowledge of species-level diversity within this genus is incomplete, as indicated by numerous unnamed genetic lineages revealed in previous molecular studies. Here we provide an extensive multigene phylogeny covering 56 of the named Lygodactylus species, four named subspecies, and 34 candidate species of which 19 are newly identified in this study. Phylogenetic analyses, based on ∼10.1 kbp concatenated sequences of eight nuclear-encoded and five mitochondrial gene fragments, confirm the monophyly of 14 Lygodactylus species groups, arranged in four major clades. We recover two clades splitting from basal nodes, one comprising exclusively Malagasy species groups, and the other containing three clades. In the latter, there is a clade with only Madagascar species, which is followed by a clade containing three African and one South American species groups, and its sister clade containing six African and two Malagasy species groups. Relationships among species groups within these latter clades remain weakly supported. We reconstruct a Lygodactylus timetree based on a novel fossil-dated phylotranscriptomic tree of squamates, in which we included data from two newly sequenced Lygodactylus transcriptomes. We estimate the crown diversification of Lygodactylus started at 46 mya, and the dispersal of Lygodactylus among the main landmasses in the Oligocene and Miocene, 35–22 mya, but emphasize the wide confidence intervals of these estimates. The phylogeny suggests an initial out-of-Madagascar dispersal as most parsimonious, but accounting for poorly resolved nodes, an out-of-Africa scenario may only require one extra dispersal step. More accurate inferences into the biogeographic history of these geckos will likely require broader sampling of related genera and phylogenomic approaches to provide better topological support. A survey of morphological characters revealed that most of the major clades and species groups within Lygodactylus cannot be unambiguously characterized by external morphology alone, neither by unique character states nor by a diagnostic combination of character states. Thus, any future taxonomic work will likely benefit from integrative, phylogenomic approaches.-
Descrição: dc.descriptionZoological Institute Technical University of Braunschweig, Mendelssohnstr. 4-
Descrição: dc.descriptionState Natural History Museum of Braunschweig, Pockelsstr. 10-
Descrição: dc.descriptionDepartment of Biological Sciences Rutgers University-Newark, 195 University Avenue-
Descrição: dc.descriptionFaculty of Mathematics and Natural Sciences Institute for Biochemistry and Biology University of Potsdam-
Descrição: dc.descriptionDepartment of Biology University of Florida, 220 Bartram Hall-
Descrição: dc.descriptionDepartamento de Biodiversidade Instituto de Biociências Universidade Estadual Paulista (UNESP), Campus Rio Claro, Avenida 24A, N 1515 Bela Vista-
Descrição: dc.descriptionSanta Fe College, 3000 NW 83rd St.-
Descrição: dc.descriptionFlorida Museum of Natural History Division of Herpetology, 1659 Museum Road – Dickinson Hall-
Descrição: dc.descriptionZoologische Staatssammlung München (ZSM-SNSB), Münchhausenstraße 21-
Descrição: dc.descriptionDepartment of Biology and Center for Biodiversity and Ecosystem Stewardship Villanova University, 800 Lancaster Avenue-
Descrição: dc.descriptionDepartamento de Biodiversidade Instituto de Biociências Universidade Estadual Paulista (UNESP), Campus Rio Claro, Avenida 24A, N 1515 Bela Vista-
Idioma: dc.languageen-
Relação: dc.relationMolecular Phylogenetics and Evolution-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDispersal-
Palavras-chave: dc.subjectDiversification-
Palavras-chave: dc.subjectGekkonidae-
Palavras-chave: dc.subjectMolecular phylogeny-
Palavras-chave: dc.subjectSquamata-
Título: dc.titleA comprehensive phylogeny of dwarf geckos of the genus Lygodactylus, with insights into their systematics and morphological variation-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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