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Título
Phylogeography of Arenaria balearica L. (Caryophyllaceae): evolutionary history of a disjunct endemic from the Western Mediterranean continental islands
Autor(es)
Materia
Biodiversity
Biogeography
Evolutionary Studies
Genetics
Plant Science
AFLPs
Arenaria
Island evolution
Phylogeography
Mediterranean
Stasis
Hercynian
Plastid DNA
Clasificación UNESCO
2417.14 Genética Vegetal
Fecha de publicación
2016
Editor
Richard Cowling
Citación
Bobo-Pinilla, J., de León, S. B. B., Colomar, J. S., Fenu, G., Bacchetta, G., de Giles, J. P., & Martínez-Ortega, M. M. (2016). Phylogeography of Arenaria balearica L.(Caryophyllaceae): evolutionary history of a disjunct endemic from the Western Mediterranean continental islands. PeerJ, 4, e2618.
Resumen
[EN] Although it has been traditionally accepted that Arenaria balearica (Caryophyllaceae)
could be a relict Tertiary plant species, this has never been experimentally tested. Nor
have the palaeohistorical reasons underlying the highly fragmented distribution of the
species in the Western Mediterranean region been investigated. We have analysed
AFLP data (213) and plastid DNA sequences (226) from a total of 250 plants from
29 populations sampled throughout the entire distribution range of the species in
Majorca, Corsica, Sardinia, and the Tuscan Archipelago. The AFLP data analyses
indicate very low geographic structure and population differentiation. Based on plastid
DNA data, six alternative phylogeographic hypotheses were tested using Approximate
Bayesian Computation (ABC). These analyses revealed ancient area fragmentation as
the most probable scenario, which is in accordance with the star-like topology of the
parsimony network that suggests a pattern of long term survival and subsequent in situ
differentiation. Overall low levels of genetic diversity and plastid DNA variation were
found, reflecting evolutionary stasis of a species preserved in locally long-term stable
habitats.
URI
DOI
10.7717/peerj.2618
Versión del editor
Colecciones
- DB. Artículos [29]
- BIOCONS. Artículos [42]
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