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Genealogy of the nuclear β-fibrinogen intron 7 in Lissotriton boscai (Caudata, Salamandridae): concordance with mtDNA and implications for phylogeography and speciation Naturalis
Teixeira, J.; Martínez-Solano, I.; Buckley, D.; Tarroso, P.; García-París, M.; Ferrand, N..
The power of phylogeographic inference resides in its ability to integrate information from multiple sources in an iterative hypothesis-testing framework. In this paper, we build upon previous mtDNA-based hypotheses about the evolutionary history of the Iberian newt Lissotriton boscai using sequences of the highly variable nuclear β-fibrinogen intron 7. In addition to the nuclear sequences, we produced new mtDNA data across the species range to delineate contact zones and test the congruence between nuclear and mitochondrial datasets at the same level of spatial organization. Through a combination of phylogenetic, phylogeographic continuous diffusion, and genetic landscape modelling analyses, we infer the evolutionary history of the species. We found...
Tipo: Article / Letter to the editor Palavras-chave: Β-fibint7; Genetic landscape shape; Iberian Peninsula; Mitochondrial DNA; Nuclear DNA; 42.82; 42.64.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/578951
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How complex is the Bufo bufo species group? Naturalis
Arntzen, J.W.; Recuero, E.; Canestrelli, D.; Martínez-Solano, I..
Species delineation remains one of the most challenging tasks in the study of biodiversity, mostly owing to the application of different species concepts, which results in contrasting taxonomic arrangements. This has important practical consequences, since species are basic units in fields like ecology and conservation biology. We here review molecular genetic evidence relevant to the systematics of toads in the Bufo bufo species group (Anura, Bufonidae). Two studies recently published in this journal (Recuero et al., MPE 62: 71–86 and Garci´a-Porta et al., MPE 63: 113–130) addressed this issue but reached opposing conclusions on the taxonomy of the group (four versus two species). In particular, allozyme data in the latter paper were interpreted as...
Tipo: Article / Letter to the editor Palavras-chave: Bufo bufo; Bufo spinosus; Molecular systematics; Bufo verrucosissimus; Phylogeny; Allozymes; 42.82.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/470065
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Morphological and genetic differentiation of Bufo toads: two cryptic species in Western Europe (Anura, Bufonidae) Naturalis
Arntzen, J.W.; McAtear, J.; Recuero, E.; Ziermann, J.M.; Ohler, A.; Alphen, J. van; Martínez-Solano, I..
The Common toad Bufo bufo sensu lato is a widespread, morphologically conserved taxon. Recent studies have uncovered deep genetic differentiation between population groups, highlighting the need to revise the current taxonomy of the group and recognize additional species. Here we investigate patterns of variation in molecular (a mitochondrial DNA restriction enzyme assay and sequence data for two nuclear DNA fragments totalling 979 bp) and 17 morphological variables in Northern France where two of these groups meet (B. bufo sensu stricto and B. spinosus), in order to delineate their contact zone and uncover characters that would allow discrimination of the two taxa. Mitochondrial DNA data show an abrupt transition from areas where B. bufo is present to...
Tipo: Article / Letter to the editor Palavras-chave: Bufo bufo; Bufo spinosus; Common toad; Contact zone; France; Mitochondrial DNA; Morphometrics; Nuclear DNA; 42.82.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/475530
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Morphological and molecular data to describe a hybrid population of the Common toad (Bufo bufo) and the Spined toad (Bufo spinosus) in western France Naturalis
Trujillo, T.; Gutiérrez-Rodríguez, J.; Arntzen, J.W.; Martínez-Solano, I..
The use of hyper-variable markers across species is often hindered by low cross-species amplification success, a reduced level of polymorphism or a high frequency of null alleles. However, optimizing sets of reliable and informative markers that can be consistently amplified and scored across taxa is key to address questions about patterns of genetic diversity and structure, hybridization and speciation. Here we present 14 newly developed microsatellite markers in the Spined toad (Bufo spinosus), assess their polymorphism in two Iberian populations and test for cross-species amplification in the closely related Common toad (Bufo bufo). We then use the 12 loci co-amplifying in both species to the study of a morphologically intermediate population (Moyaux)...
Tipo: Article / Letter to the editor Palavras-chave: Amphibians; Cross-amplification; Genetic polymorphism; Hybridization; Microsatellites; Morphology.
Ano: 2017 URL: http://www.repository.naturalis.nl/record/623750
Registros recuperados: 4
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