The phylogeographic history of megistostegium (Malvaceae) in the dry, spiny thickets of southwestern Madagascar using RAD-seq data and ecological niche modeling
The spiny thicket of southwestern Madagascar represents an extreme and ancient landscape with extraordinary levels of biodiversity and endemism. Few hypotheses exist for explaining speciation in the region and few plant studies have explored hypotheses for species diversification. Here, we investigate three species in the endemic genus Megistostegium (Malvaceae) to evaluate phylogeographic structure and explore the roles of climate, soil, and paleoclimate oscillations on population divergence and speciation throughout the region. We combine phylogenetic and phylogeographic inference of RADseq data with ecological niche modeling across space and time. Population structure is concurrent with major rivers in the region and we identify a new, potentially important biogeographic break coincident with several landscape features. Our data further suggests that niches occupied by species and populations differ substantially across their distribution. Paleodistribution modeling provide evidence that past climatic change could be responsible for the current distribution, population structure, and maintenance of species in Megistostegium.
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| Format: | Texto biblioteca |
| Language: | eng |
| Subjects: | Megistostegium, Malváceas, Genética de población, Nicho (Ecología), Matorrales, Filogeografía, Filogenética, |
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KOHA-OAI-ECOSUR:622602024-03-12T12:34:55ZThe phylogeographic history of megistostegium (Malvaceae) in the dry, spiny thickets of southwestern Madagascar using RAD-seq data and ecological niche modeling Hanes, Margaret M. autora Shell, Susan autora Shimu, Tahsina autor/a Crist, Clarissa autora Machkour M'Rabet, Salima Doctora autora 12330 textengThe spiny thicket of southwestern Madagascar represents an extreme and ancient landscape with extraordinary levels of biodiversity and endemism. Few hypotheses exist for explaining speciation in the region and few plant studies have explored hypotheses for species diversification. Here, we investigate three species in the endemic genus Megistostegium (Malvaceae) to evaluate phylogeographic structure and explore the roles of climate, soil, and paleoclimate oscillations on population divergence and speciation throughout the region. We combine phylogenetic and phylogeographic inference of RADseq data with ecological niche modeling across space and time. Population structure is concurrent with major rivers in the region and we identify a new, potentially important biogeographic break coincident with several landscape features. Our data further suggests that niches occupied by species and populations differ substantially across their distribution. Paleodistribution modeling provide evidence that past climatic change could be responsible for the current distribution, population structure, and maintenance of species in Megistostegium.The spiny thicket of southwestern Madagascar represents an extreme and ancient landscape with extraordinary levels of biodiversity and endemism. Few hypotheses exist for explaining speciation in the region and few plant studies have explored hypotheses for species diversification. Here, we investigate three species in the endemic genus Megistostegium (Malvaceae) to evaluate phylogeographic structure and explore the roles of climate, soil, and paleoclimate oscillations on population divergence and speciation throughout the region. We combine phylogenetic and phylogeographic inference of RADseq data with ecological niche modeling across space and time. Population structure is concurrent with major rivers in the region and we identify a new, potentially important biogeographic break coincident with several landscape features. Our data further suggests that niches occupied by species and populations differ substantially across their distribution. Paleodistribution modeling provide evidence that past climatic change could be responsible for the current distribution, population structure, and maintenance of species in Megistostegium.MegistostegiumMalváceasGenética de poblaciónNicho (Ecología)MatorralesFilogeografíaFilogenéticaEcology and Evolutionhttps://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.8632?src=getftrAcceso en línea sin restricciones |
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Megistostegium Malváceas Genética de población Nicho (Ecología) Matorrales Filogeografía Filogenética Megistostegium Malváceas Genética de población Nicho (Ecología) Matorrales Filogeografía Filogenética |
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Megistostegium Malváceas Genética de población Nicho (Ecología) Matorrales Filogeografía Filogenética Megistostegium Malváceas Genética de población Nicho (Ecología) Matorrales Filogeografía Filogenética Hanes, Margaret M. autora Shell, Susan autora Shimu, Tahsina autor/a Crist, Clarissa autora Machkour M'Rabet, Salima Doctora autora 12330 The phylogeographic history of megistostegium (Malvaceae) in the dry, spiny thickets of southwestern Madagascar using RAD-seq data and ecological niche modeling |
| description |
The spiny thicket of southwestern Madagascar represents an extreme and ancient landscape with extraordinary levels of biodiversity and endemism. Few hypotheses exist for explaining speciation in the region and few plant studies have explored hypotheses for species diversification. Here, we investigate three species in the endemic genus Megistostegium (Malvaceae) to evaluate phylogeographic structure and explore the roles of climate, soil, and paleoclimate oscillations on population divergence and speciation throughout the region. We combine phylogenetic and phylogeographic inference of RADseq data with ecological niche modeling across space and time. Population structure is concurrent with major rivers in the region and we identify a new, potentially important biogeographic break coincident with several landscape features. Our data further suggests that niches occupied by species and populations differ substantially across their distribution. Paleodistribution modeling provide evidence that past climatic change could be responsible for the current distribution, population structure, and maintenance of species in Megistostegium. |
| format |
Texto |
| topic_facet |
Megistostegium Malváceas Genética de población Nicho (Ecología) Matorrales Filogeografía Filogenética |
| author |
Hanes, Margaret M. autora Shell, Susan autora Shimu, Tahsina autor/a Crist, Clarissa autora Machkour M'Rabet, Salima Doctora autora 12330 |
| author_facet |
Hanes, Margaret M. autora Shell, Susan autora Shimu, Tahsina autor/a Crist, Clarissa autora Machkour M'Rabet, Salima Doctora autora 12330 |
| author_sort |
Hanes, Margaret M. autora |
| title |
The phylogeographic history of megistostegium (Malvaceae) in the dry, spiny thickets of southwestern Madagascar using RAD-seq data and ecological niche modeling |
| title_short |
The phylogeographic history of megistostegium (Malvaceae) in the dry, spiny thickets of southwestern Madagascar using RAD-seq data and ecological niche modeling |
| title_full |
The phylogeographic history of megistostegium (Malvaceae) in the dry, spiny thickets of southwestern Madagascar using RAD-seq data and ecological niche modeling |
| title_fullStr |
The phylogeographic history of megistostegium (Malvaceae) in the dry, spiny thickets of southwestern Madagascar using RAD-seq data and ecological niche modeling |
| title_full_unstemmed |
The phylogeographic history of megistostegium (Malvaceae) in the dry, spiny thickets of southwestern Madagascar using RAD-seq data and ecological niche modeling |
| title_sort |
phylogeographic history of megistostegium (malvaceae) in the dry, spiny thickets of southwestern madagascar using rad-seq data and ecological niche modeling |
| url |
https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.8632?src=getftr |
| work_keys_str_mv |
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