| mitochondrial dna patterns in the macaronesia islands: variation within and among archipelagos. | macaronesia covers four atlantic archipelagos: the azores, madeira, the canary islands, and the cape verde islands. when discovered by europeans in the 15th century, only the canaries were inhabited. historical reports highlight the impact of iberians on settlement in macaronesia. although important differences in their settlement are documented, its influence on their genetic structures and relationships has yet to be ascertained. in this study, the hypervariable region i (hvri) sequence and co ... | 2010 | 19927277 |
| chestnut cultivar diversification process in the iberian peninsula, canary islands, and azores. | this is a large-scale molecular study based on simple sequence repeat (ssr) loci of the diversification process in chestnut cultivars from portugal and spain, from the northern iberian peninsula to the canary islands and the azores. a total of 593 grafted chestnut trees (castanea sativa mill.) were analysed with 10 ssrs: 292 from portugal and 301 from spain. some of the trees studied were more than 300 years old. accessions were analysed using a model-based bayesian procedure to assess the geogr ... | 2011 | 21491973 |
| Oceanic islands are not sinks of biodiversity in spore-producing plants. | Islands have traditionally been considered as migratory and evolutionary dead ends for two main reasons: island colonizers are typically assumed to lose their dispersal power, and continental back colonization has been regarded as unlikely because of niche preemption. The hypothesis that islands might actually represent dynamic refugia and migratory stepping stones for species that are effective dispersers, and in particular, for spore-producing plants, is formally tested here, using the archipe ... | 2011 | 22084108 |