Tags

Type your tag names separated by a space and hit enter

Phylogeographical and speciation patterns in subterranean worm lizards of the genus Blanus (Amphisbaenia: Blanidae).
Mol Ecol. 2007 Apr; 16(7):1519-31.ME

Abstract

The peculiar lifestyle of subterranean reptiles must determine their modes of speciation and diversification. To further understand the evolutionary biology of subterranean reptiles, we studied the phylogeny of worm lizards of the genus Blanus and the phylogeography of its Iberian representatives. We used mitochondrial (ND4 and 16S rRNA) and nuclear (anonymous) partial gene sequences to resolve phylogenetic relationships within Blanus. The Eastern Mediterranean Blanus strauchi was recovered as sister group of Western Mediterranean species. Iberian and North African Blanus were recovered as reciprocally monophyletic groups. The same genes were used to determine phylogeography of 47 populations of Blanus cinereus. Mitochondrial and nuclear sequence data recovered two highly supported Iberian clades. Parapatry and high sequence divergences between them suggest that these clades may represent independent taxonomic units. A molecular clock was calibrated considering that the split between Iberian and North African Blanus was due to the re-opening of the Betic Strait in the Upper Tortonian (8-9 million years ago). Differentiation between the two Iberian clades was estimated to date back to 5.2 million years ago. The Central Iberian clade included five mitochondrial haplotype lineages (A-E). Geographical ranges of two of them broadly overlap in the central Iberian plateau. After testing alternative hypotheses, the most likely explanation for this striking phylogeographical pattern involves recent dispersal of one of the lineages (C) over the geographical range of the other (B). The inferred recent dispersal of this fossorial reptile is explained in terms of demographic advantages associated to underground lifestyle.

Authors+Show Affiliations

Albert EM
Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal, 2, 28006, Madrid, Spain.
Zardoya R
No affiliation info available
García-París M
No affiliation info available

MeSH

AnimalsBase SequenceBayes TheoremCell NucleusDNA PrimersDNA, MitochondrialDemographyEvolution, MolecularGenetic SpeciationGenetic VariationGeographyHaplotypesLikelihood FunctionsLizardsModels, GeneticMolecular Sequence DataPhylogenyPortugalSequence Analysis, DNASpain

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17391273

Citation

Albert, E M., et al. "Phylogeographical and Speciation Patterns in Subterranean Worm Lizards of the Genus Blanus (Amphisbaenia: Blanidae)." Molecular Ecology, vol. 16, no. 7, 2007, pp. 1519-31.
Albert EM, Zardoya R, García-París M. Phylogeographical and speciation patterns in subterranean worm lizards of the genus Blanus (Amphisbaenia: Blanidae). Mol Ecol. 2007;16(7):1519-31.
Albert, E. M., Zardoya, R., & García-París, M. (2007). Phylogeographical and speciation patterns in subterranean worm lizards of the genus Blanus (Amphisbaenia: Blanidae). Molecular Ecology, 16(7), 1519-31.
Albert EM, Zardoya R, García-París M. Phylogeographical and Speciation Patterns in Subterranean Worm Lizards of the Genus Blanus (Amphisbaenia: Blanidae). Mol Ecol. 2007;16(7):1519-31. PubMed PMID: 17391273.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phylogeographical and speciation patterns in subterranean worm lizards of the genus Blanus (Amphisbaenia: Blanidae). AU - Albert,E M, AU - Zardoya,R, AU - García-París,M, PY - 2007/3/30/pubmed PY - 2007/7/28/medline PY - 2007/3/30/entrez SP - 1519 EP - 31 JF - Molecular ecology JO - Mol Ecol VL - 16 IS - 7 N2 - The peculiar lifestyle of subterranean reptiles must determine their modes of speciation and diversification. To further understand the evolutionary biology of subterranean reptiles, we studied the phylogeny of worm lizards of the genus Blanus and the phylogeography of its Iberian representatives. We used mitochondrial (ND4 and 16S rRNA) and nuclear (anonymous) partial gene sequences to resolve phylogenetic relationships within Blanus. The Eastern Mediterranean Blanus strauchi was recovered as sister group of Western Mediterranean species. Iberian and North African Blanus were recovered as reciprocally monophyletic groups. The same genes were used to determine phylogeography of 47 populations of Blanus cinereus. Mitochondrial and nuclear sequence data recovered two highly supported Iberian clades. Parapatry and high sequence divergences between them suggest that these clades may represent independent taxonomic units. A molecular clock was calibrated considering that the split between Iberian and North African Blanus was due to the re-opening of the Betic Strait in the Upper Tortonian (8-9 million years ago). Differentiation between the two Iberian clades was estimated to date back to 5.2 million years ago. The Central Iberian clade included five mitochondrial haplotype lineages (A-E). Geographical ranges of two of them broadly overlap in the central Iberian plateau. After testing alternative hypotheses, the most likely explanation for this striking phylogeographical pattern involves recent dispersal of one of the lineages (C) over the geographical range of the other (B). The inferred recent dispersal of this fossorial reptile is explained in terms of demographic advantages associated to underground lifestyle. SN - 0962-1083 UR - https://www.unboundmedicine.com/medline/citation/17391273/Phylogeographical_and_speciation_patterns_in_subterranean_worm_lizards_of_the_genus_Blanus__Amphisbaenia:_Blanidae__ L2 - https://doi.org/10.1111/j.1365-294X.2007.03248.x DB - PRIME DP - Unbound Medicine ER -