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Complex reticulate evolution of speckled brush-furred rats (Lophuromys) in the Ethiopian centre of endemism.
Komarova, Valeria A; Kostin, Danila S; Bryja, Josef; Mikula, Ondrej; Bryjová, Anna; Cízková, Dagmar; Sumbera, Radim; Meheretu, Yonas; Lavrenchenko, Leonid A.
Afiliación
  • Komarova VA; A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia.
  • Kostin DS; A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia.
  • Bryja J; Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic.
  • Mikula O; Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic.
  • Bryjová A; Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic.
  • Cízková D; Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic.
  • Sumbera R; Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic.
  • Meheretu Y; Department of Zoology, Faculty of Science, University of South Bohemia, Ceské Budejovice, Czech Republic.
  • Lavrenchenko LA; Department of Biology and Institute of Mountain Research and Development, Mekelle University, Mekelle, Tigray, Ethiopia.
Mol Ecol ; 30(10): 2349-2365, 2021 05.
Article en En | MEDLINE | ID: mdl-33738874
The Ethiopian highlands represent a remarkable biodiversity 'hot spot' with a very high number of endemic species, even among vertebrates. Ethiopian representatives of a species complex of speckled brush-furred rats (Lophuromys flavopunctatus sensu lato) inhabit highland habitats ranging from low-elevation forests to Afroalpine grasslands. These may serve as a suitable model for understanding evolutionary processes leading to high genetic and ecological diversity in montane biodiversity hot spots. Here, we analyse the most comprehensive genetic data set of this group, comprising 315 specimens (all nine putative Ethiopian Lophuromys taxa sampled across most of their distribution ranges) genotyped at one mitochondrial and four nuclear markers, and thousands of SNPs from ddRAD sequencing. We performed phylogenetic analyses, delimited species and mapped their distribution and estimated divergence time between species (under the species-tree framework) and mitochondrial lineages. We found significant incongruence between mitochondrial and nuclear phylogenies, most probably caused by multiple interspecific introgression events. We discuss alternative scenarios of Ethiopian Lophuromys evolution, from retention of ancestral polymorphism to hybridization upon secondary contact of partially reproductively isolated lineages leading to reticulate evolution. Finally, we use the diversity of the speckled brush-furred rats for the description of the main biogeographic patterns in the fauna of the Ethiopian highlands.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Biodiversidad / Murinae / Evolución Biológica Límite: Animals País/Región como asunto: Africa Idioma: En Revista: Mol Ecol Asunto de la revista: BIOLOGIA MOLECULAR / SAUDE AMBIENTAL Año: 2021 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Biodiversidad / Murinae / Evolución Biológica Límite: Animals País/Región como asunto: Africa Idioma: En Revista: Mol Ecol Asunto de la revista: BIOLOGIA MOLECULAR / SAUDE AMBIENTAL Año: 2021 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Reino Unido