Consulta: creatorFacets:"Ferrand, N."
Registros recuperados: 2
Data/hora: 10/06/2024 03:36:06

Genealogy of the nuclear β-fibrinogen intron 7 in Lissotriton boscai (Caudata, Salamandridae): concordance with mtDNA and implications for phylogeography and speciation
Provedor de dados: 16
Autores: 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

Morphological variation in two genetically distinct groups of the golden-striped salamander, Chioglossa lusitanica (Amphibia: Urodela)
Provedor de dados: 16
Autores: Alexandrino, J.; Ferrand, N.; Arntzen, J.W.
Morphometric and colour pattern variation in the endemic Iberian salamander Chioglossa lusitanica is concordant with the genetic differentiation of two groups of populations separated by the Mondego river in Portugal. Salamanders from the south have shorter digits than those from the north. Clinal variation with a south to north increase in limb, toe and finger length was found superimposed on this dichotomy, resulting in stepped clines for characters describing appendage size. Genetic variability was paralleled by colour pattern variability in the contact zone and in northern populations. To explain the observed parallels we invoke the neutral processes of vicariant isolation, admixture in a secondary contact zone, genetic drift in addition to selection...
Tipo: Article / Letter to the editor
Palavras-chave: Amphibia; Chioglossa lusitanica; Clinal variation; Colour pattern; Golden-striped salamander; Morphometrics; 42.82.
Ano: 2005
URL: http://www.repository.naturalis.nl/record/209648