Phylogenetic relationships of toads of the Rhinella granulosa group (Anura: Bufonidae): A molecular perspective with comments on hybridization and introgression

The Rhinella granulosa group consists of 13 species of toads distributed throughout open areas of South America and Panama. In this paper we perform a phylogenetic analysis considering all but one species of the group, employing five nuclear and four mitochondrial genes, for up to 7910 bp per specim...

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Autores principales: Pereyra, Martín Oscar, Faivovich, Julián
Publicado: 2016
Materias:
hybridization
introgression
morphology
phylogenetics
phylogeny
population genetics
taxonomy
toad
Anura
Bufonidae
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07483007_v32_n1_p36_Pereyra
http://hdl.handle.net/20.500.12110/paper_07483007_v32_n1_p36_Pereyra
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_07483007_v32_n1_p36_Pereyra
record_format dspace
spelling paper:paper_07483007_v32_n1_p36_Pereyra2023-06-08T15:45:16Z Phylogenetic relationships of toads of the Rhinella granulosa group (Anura: Bufonidae): A molecular perspective with comments on hybridization and introgression Pereyra, Martín Oscar Faivovich, Julián hybridization introgression morphology phylogenetics phylogeny population genetics taxonomy toad Anura Bufonidae The Rhinella granulosa group consists of 13 species of toads distributed throughout open areas of South America and Panama. In this paper we perform a phylogenetic analysis considering all but one species of the group, employing five nuclear and four mitochondrial genes, for up to 7910 bp per specimen. Separate phylogenetic analyses under direct optimization (DO) of nuclear and mitochondrial sequences recovered the R. granulosa group as monophyletic and revealed topological incongruence that can be explained mainly by multiple events of hybridization and introgression, both mitochondrial and nuclear. The DO combined analysis, after the exclusion of putatively introgressed or heterozygous genomes, resulted in a phylogenetic hypothesis for the R. granulosa group in which most of the species are recovered as monophyletic, but with interspecific relationships poorly supported. The optimization of morphological (adult and larval), chromosomal, and behavioural characters resulted in 12 putative phenotypic synapomorphies for this species group and some other synapomorphies for internal clades. Our results indicate the need for additional population genetic studies on R. dorbignyi and R. fernandezae to corroborate the taxonomic status of both taxa. Finally, we discuss biological and genetic characteristics of Bufonidae, as possible explanations for the common occurrence of hybridization and introgression observed in some lineages of this family. © 2016 The Willi Hennig Society. Fil:Pereyra, M.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Faivovich, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07483007_v32_n1_p36_Pereyra http://hdl.handle.net/20.500.12110/paper_07483007_v32_n1_p36_Pereyra
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic hybridization
introgression
morphology
phylogenetics
phylogeny
population genetics
taxonomy
toad
Anura
Bufonidae
spellingShingle hybridization
introgression
morphology
phylogenetics
phylogeny
population genetics
taxonomy
toad
Anura
Bufonidae
Pereyra, Martín Oscar
Faivovich, Julián
Phylogenetic relationships of toads of the Rhinella granulosa group (Anura: Bufonidae): A molecular perspective with comments on hybridization and introgression
topic_facet hybridization
introgression
morphology
phylogenetics
phylogeny
population genetics
taxonomy
toad
Anura
Bufonidae
description The Rhinella granulosa group consists of 13 species of toads distributed throughout open areas of South America and Panama. In this paper we perform a phylogenetic analysis considering all but one species of the group, employing five nuclear and four mitochondrial genes, for up to 7910 bp per specimen. Separate phylogenetic analyses under direct optimization (DO) of nuclear and mitochondrial sequences recovered the R. granulosa group as monophyletic and revealed topological incongruence that can be explained mainly by multiple events of hybridization and introgression, both mitochondrial and nuclear. The DO combined analysis, after the exclusion of putatively introgressed or heterozygous genomes, resulted in a phylogenetic hypothesis for the R. granulosa group in which most of the species are recovered as monophyletic, but with interspecific relationships poorly supported. The optimization of morphological (adult and larval), chromosomal, and behavioural characters resulted in 12 putative phenotypic synapomorphies for this species group and some other synapomorphies for internal clades. Our results indicate the need for additional population genetic studies on R. dorbignyi and R. fernandezae to corroborate the taxonomic status of both taxa. Finally, we discuss biological and genetic characteristics of Bufonidae, as possible explanations for the common occurrence of hybridization and introgression observed in some lineages of this family. © 2016 The Willi Hennig Society.
author Pereyra, Martín Oscar
Faivovich, Julián
author_facet Pereyra, Martín Oscar
Faivovich, Julián
author_sort Pereyra, Martín Oscar
title Phylogenetic relationships of toads of the Rhinella granulosa group (Anura: Bufonidae): A molecular perspective with comments on hybridization and introgression
title_short Phylogenetic relationships of toads of the Rhinella granulosa group (Anura: Bufonidae): A molecular perspective with comments on hybridization and introgression
title_full Phylogenetic relationships of toads of the Rhinella granulosa group (Anura: Bufonidae): A molecular perspective with comments on hybridization and introgression
title_fullStr Phylogenetic relationships of toads of the Rhinella granulosa group (Anura: Bufonidae): A molecular perspective with comments on hybridization and introgression
title_full_unstemmed Phylogenetic relationships of toads of the Rhinella granulosa group (Anura: Bufonidae): A molecular perspective with comments on hybridization and introgression
title_sort phylogenetic relationships of toads of the rhinella granulosa group (anura: bufonidae): a molecular perspective with comments on hybridization and introgression
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07483007_v32_n1_p36_Pereyra
http://hdl.handle.net/20.500.12110/paper_07483007_v32_n1_p36_Pereyra
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AT faivovichjulian phylogeneticrelationshipsoftoadsoftherhinellagranulosagroupanurabufonidaeamolecularperspectivewithcommentsonhybridizationandintrogression
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