Biogeographic history and cryptic diversity of saxicolous Tropiduridae lizards endemic to the semiarid Caatinga
Background: Phylogeographic research has advanced in South America, with increasing efforts on taxa from the dry diagonal biomes. However, the diversification of endemic fauna from the semiarid Caatinga biome in northeastern Brazil is still poorly known. Here we targeted saxicolous lizards of the Tr...
| Autor principal: | Werneck, F. P. |
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| Outros Autores: | Leite, Rafael N., Geurgas, Silvia Rodrigues, Rodrigues, Miguel Trefaut |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
BMC Evolutionary Biology
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/15897 |
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oai:repositorio:1-15897 |
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oai:repositorio:1-15897 Biogeographic history and cryptic diversity of saxicolous Tropiduridae lizards endemic to the semiarid Caatinga Werneck, F. P. Leite, Rafael N. Geurgas, Silvia Rodrigues Rodrigues, Miguel Trefaut Biome Caatinga Divergence Drainage Basin Endemic Species Evolutionary Theory Gene Flow Lizard Phylogenetics Phylogeography Pliocene-pleistocene Boundary Range Expansion Semiarid Region Spatio-temporal Analysis Brasil Sao Francisco River Squamata Tropidurinae Tropidurus Semitaeniatus Animals Brasil Classification Evolution Genetic Variability Genetics Lizard Phylogeny Phylogeography Population Migration South America Animals Migration Animal Biological Evolution Brasil Genetic Variation Lizards Phylogeny Phylogeography South America Background: Phylogeographic research has advanced in South America, with increasing efforts on taxa from the dry diagonal biomes. However, the diversification of endemic fauna from the semiarid Caatinga biome in northeastern Brazil is still poorly known. Here we targeted saxicolous lizards of the Tropidurus semitaeniatus species group to better understand the evolutionary history of these endemic taxa and the Caatinga. We estimated a time-calibrated phylogeny for the species group based on two mitochondrial and two nuclear genes and jointly estimated the species limits and species tree within the group. We also devoted a denser phylogeographic sampling of the T. semitaeniatus complex to explore migration patterns, and the spatiotemporal diffusion history to verify a possible role of the São Francisco River as a promoter of differentiation in this saxicolous group of lizards. Results: Phylogenetic analysis detected high cryptic genetic diversity, occurrence of unique microendemic lineages associated with older highlands, and a speciation history that took place during the Pliocene-Pleistocene transition. Species delimitation detected five evolutionary entities within the T. semitaeniatus species group, albeit with low support. Thus, additional data are needed for a more accurate definition of species limits and interspecific relationships within this group. Spatiotemporal analyses reconstructed the geographic origin of the T. semitaeniatus species complex to be located north of the present-day course of the São Francisco River, followed by dispersal that expanded its distribution towards the northwest and south. Gene flow estimates showed higher migration rates into the lineages located north of the São Francisco River. Conclusions: The phylogenetic and population structures are intrinsically associated with stable rock surfaces and landscape rearrangements, such as the establishment of drainage basins located to the northern and southern distribution ranges. The T. semitaeniatus complex preserved high genetic diversity during range expansion, possibly as a result of frequent long-distance dispersal events. Our results indicate that both the current course of the São Francisco River and its paleo-courses had an important role in promoting diversification of the Caatinga endemic T. semitaeniatus species group. © 2015 Werneck et al.; licensee BioMed Central. 2020-05-19T21:03:18Z 2020-05-19T21:03:18Z 2015 Artigo https://repositorio.inpa.gov.br/handle/1/15897 10.1186/s12862-015-0368-3 en Volume 15, Número 1 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf BMC Evolutionary Biology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Biome Caatinga Divergence Drainage Basin Endemic Species Evolutionary Theory Gene Flow Lizard Phylogenetics Phylogeography Pliocene-pleistocene Boundary Range Expansion Semiarid Region Spatio-temporal Analysis Brasil Sao Francisco River Squamata Tropidurinae Tropidurus Semitaeniatus Animals Brasil Classification Evolution Genetic Variability Genetics Lizard Phylogeny Phylogeography Population Migration South America Animals Migration Animal Biological Evolution Brasil Genetic Variation Lizards Phylogeny Phylogeography South America |
| spellingShingle |
Biome Caatinga Divergence Drainage Basin Endemic Species Evolutionary Theory Gene Flow Lizard Phylogenetics Phylogeography Pliocene-pleistocene Boundary Range Expansion Semiarid Region Spatio-temporal Analysis Brasil Sao Francisco River Squamata Tropidurinae Tropidurus Semitaeniatus Animals Brasil Classification Evolution Genetic Variability Genetics Lizard Phylogeny Phylogeography Population Migration South America Animals Migration Animal Biological Evolution Brasil Genetic Variation Lizards Phylogeny Phylogeography South America Werneck, F. P. Biogeographic history and cryptic diversity of saxicolous Tropiduridae lizards endemic to the semiarid Caatinga |
| topic_facet |
Biome Caatinga Divergence Drainage Basin Endemic Species Evolutionary Theory Gene Flow Lizard Phylogenetics Phylogeography Pliocene-pleistocene Boundary Range Expansion Semiarid Region Spatio-temporal Analysis Brasil Sao Francisco River Squamata Tropidurinae Tropidurus Semitaeniatus Animals Brasil Classification Evolution Genetic Variability Genetics Lizard Phylogeny Phylogeography Population Migration South America Animals Migration Animal Biological Evolution Brasil Genetic Variation Lizards Phylogeny Phylogeography South America |
| description |
Background: Phylogeographic research has advanced in South America, with increasing efforts on taxa from the dry diagonal biomes. However, the diversification of endemic fauna from the semiarid Caatinga biome in northeastern Brazil is still poorly known. Here we targeted saxicolous lizards of the Tropidurus semitaeniatus species group to better understand the evolutionary history of these endemic taxa and the Caatinga. We estimated a time-calibrated phylogeny for the species group based on two mitochondrial and two nuclear genes and jointly estimated the species limits and species tree within the group. We also devoted a denser phylogeographic sampling of the T. semitaeniatus complex to explore migration patterns, and the spatiotemporal diffusion history to verify a possible role of the São Francisco River as a promoter of differentiation in this saxicolous group of lizards. Results: Phylogenetic analysis detected high cryptic genetic diversity, occurrence of unique microendemic lineages associated with older highlands, and a speciation history that took place during the Pliocene-Pleistocene transition. Species delimitation detected five evolutionary entities within the T. semitaeniatus species group, albeit with low support. Thus, additional data are needed for a more accurate definition of species limits and interspecific relationships within this group. Spatiotemporal analyses reconstructed the geographic origin of the T. semitaeniatus species complex to be located north of the present-day course of the São Francisco River, followed by dispersal that expanded its distribution towards the northwest and south. Gene flow estimates showed higher migration rates into the lineages located north of the São Francisco River. Conclusions: The phylogenetic and population structures are intrinsically associated with stable rock surfaces and landscape rearrangements, such as the establishment of drainage basins located to the northern and southern distribution ranges. The T. semitaeniatus complex preserved high genetic diversity during range expansion, possibly as a result of frequent long-distance dispersal events. Our results indicate that both the current course of the São Francisco River and its paleo-courses had an important role in promoting diversification of the Caatinga endemic T. semitaeniatus species group. © 2015 Werneck et al.; licensee BioMed Central. |
| format |
Artigo |
| author |
Werneck, F. P. |
| author2 |
Leite, Rafael N. Geurgas, Silvia Rodrigues Rodrigues, Miguel Trefaut |
| author2Str |
Leite, Rafael N. Geurgas, Silvia Rodrigues Rodrigues, Miguel Trefaut |
| title |
Biogeographic history and cryptic diversity of saxicolous Tropiduridae lizards endemic to the semiarid Caatinga |
| title_short |
Biogeographic history and cryptic diversity of saxicolous Tropiduridae lizards endemic to the semiarid Caatinga |
| title_full |
Biogeographic history and cryptic diversity of saxicolous Tropiduridae lizards endemic to the semiarid Caatinga |
| title_fullStr |
Biogeographic history and cryptic diversity of saxicolous Tropiduridae lizards endemic to the semiarid Caatinga |
| title_full_unstemmed |
Biogeographic history and cryptic diversity of saxicolous Tropiduridae lizards endemic to the semiarid Caatinga |
| title_sort |
biogeographic history and cryptic diversity of saxicolous tropiduridae lizards endemic to the semiarid caatinga |
| publisher |
BMC Evolutionary Biology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/15897 |
| _version_ |
1787141134852554752 |
| score |
11.755432 |