Phylogeographic insights into Artemisia crithmifolia (Asteraceae) reveal several areas of the Iberian Atlantic coast as refugia for genetic diversity
| Autor: | Jaume Pellicer, Alfredo García-Fernández, Joan Vallès, Daniel Vitales, Teresa Garnatje |
|---|---|
| Přispěvatelé: | Ministerio de Economía, Industria y Competitividad (España), Generalitat de Catalunya |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
geography Genetic diversity geography.geographical_feature_category Ecology Niche Fragmentation (computing) Last Glacial Maximum Conservation Plant Science Asteraceae Biology Fragmented distribution 010603 evolutionary biology 01 natural sciences Niche modelling Gene flow Phylogeography European Atlantic coasts Habitat Peninsula Coastal dune ecosystems Ecology Evolution Behavior and Systematics 010606 plant biology & botany |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 2199-6881 0378-2697 |
| DOI: | 10.1007/s00606-017-1387-x |
| Popis: | 11 p., tablas, mapas -- Post-print del artículo publicado en Plant Systematics and Evolution. Versión revisada y corregida -- La versión online de este artículo contiene material suplementario, disponible en: http://doi.org/10.1007/s00606-017-1387-x The study of fragmentation processes should be tackled using different approaches, in order to obtain solid and robust evidence that could help in identifying potential barriers and threats for species. In this study, we have evaluated the spatial fragmentation patterns in Artemisia crithmifolia (Asteraceae) along its current distribution along the Atlantic coastlines of Europe, from Portugal to the Netherlands and the UK. Niche modelling analyses considering current and past climatic conditions, combined with plastid markers, have been used to evaluate the disconnected distribution pattern of the species, genetic flow between populations and habitat suitability for present and past populations. Plastid markers showed very low variability, while suggesting that the westernmost populations from the Atlantic coast of the Iberian Peninsula are partially genetically isolated, due to the existence of a potential barrier for gene flow on the northern Spanish coast. However, niche models identify this area as a potential habitat for the species, even during the last glacial maximum (20,000 years ago). The combination of both techniques allows identification of potential refugia for the species, highlighting the most likely recolonisation routes and distribution patterns which resulted in the overall low levels of genetic diversity. Anthropogenic activities (urban sprawl, beach expansions, etc.) are most likely behind local extinctions, thus preventing the establishment and expansion of new populations. The study has been supported by Projects CGL2007-64839-C02-01/-02, CGL2010-22234-C02-01.02/BOS and CGL2013-49097-C2-2-P (Spanish Government) and 2014SGR514 (Catalan Government). |
| Databáze: | OpenAIRE |
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