0000000001309889

AUTHOR

Juli Caujapé-castells

showing 4 related works from this author

The loss of dispersal on islands hypothesis revisited: Implementing phylogeography to investigate evolution of dispersal traits in Periploca (Apocyna…

2017

Aim: The loss of dispersal on islands hypothesis (LDIH) posits that wind-dispersed plants should exhibit reduced dispersal potential, particularly if island populations are old. In this study, we tested this hypothesis using a detailed phylogeographical framework across different geographical scales. Location: Mainland and island areas of the Atlantic and Mediterranean regions, including Macaronesia (Canary Islands and Cape Verde) and Mediterranean islands in the strait of Sicily. Methods: Forty-five populations of Periploca laevigata, a wind-dispersed shrub, were sampled. Plastid and nuclear microsatellite data were used to reconstruct spatio-temporal patterns of island colonization, and e…

0106 biological sciences0301 basic medicineMediterranean climateSettore BIO/07 - EcologiaSeed dispersalanemochory dispersal ability island colonization Macaronesia parallel evolution seed dispersal010603 evolutionary biology01 natural sciencesCape verde03 medical and health sciencesisland colonizationAnemochoryPeriplocadispersal abilityEcology Evolution Behavior and SystematicsMacaronesia parallel evolutionEcologybiologyEcologybiology.organism_classificationseed dispersalPhylogeography030104 developmental biologySettore BIO/03 - Botanica Ambientale E ApplicataBiological dispersalMainlandMediterranean Islands
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Do island plant populations really have lower genetic variation than mainland populations? Effects of selection and distribution range on genetic div…

2015

Ecological and evolutionary studies largely assume that island populations display low levels of neutral genetic variation. However, this notion has only been formally tested in a few cases involving plant taxa, and the confounding effect of selection on genetic diversity (GD) estimates based on putatively neutral markers has typically been overlooked. Here, we generated nuclear microsatellite and plastid DNA sequence data in Periploca laevigata, a plant taxon with an island–mainland distribution area, to (i) investigate whether selection affects GD estimates of populations across contrasting habitats; and (ii) test the long-standing idea that island populations have lower GD than their mai…

Settore BIO/07 - EcologiaDNA PlantSettore AGR/05 - Assestamento Forestale E SelvicolturaRange (biology)Molecular Sequence DataSettore BIO/11 - Biologia MolecolareBiologydirectional selection island–mainland distributions microsatellites neutral markers Periploca laevigata widespread speciesGenetic variationGeneticsPeriplocaSelection GeneticEcology Evolution Behavior and SystematicsSelection (genetic algorithm)EcosystemIslandsGenetic diversityPeriplocaDirectional selectionEcologyGenetic DriftDNA ChloroplastGenetic Variationbiology.organism_classificationBiological EvolutionGenetics PopulationEvolutionary biologyGenetic LociSpainSettore BIO/03 - Botanica Ambientale E ApplicataMicrosatelliteLiterature surveyMicrosatellite Repeats
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Genetic differentiation of three species of Matthiola (Brassicaceae) in the Sicilian insular system

2005

We examined the genetic variation of 12 isozyme loci in 14 populations of Matthiola (Brassicaceae) representing the geographic distribution of the species M. incana, M. fruticulosa ssp. fruticulosa and M. tricuspidata in the Sicilian insular system and the adjacent mainland areas to estimate the levels and apportionment of genetic variation in the insular populations and to understand their population dynamics. The disparity in the distribution of polymorphism in populations of M. incana ssp. incana (low within populations but with high values of F ST and G ST ) contrasts with the homogeneity in the inter-population distribution of the high genetic variation detected in M. tricuspidata and …

education.field_of_studybiologyPopulationMatthiolaBrassicaceaePlant Sciencebiology.organism_classificationlanguage.human_languageGene flowPlant ecologyTaxonBotanyGenetic variationlanguageeducationSicilianEcology Evolution Behavior and Systematics
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Data from: Do island plant populations really have lower genetic variation than mainland populations? Effects of selection and distribution range on …

2015

Ecological and evolutionary studies largely assume that island populations display low levels of neutral genetic variation. However, this notion has only been formally tested in a few cases involving plant taxa, and the confounding effect of selection on genetic diversity (GD) estimates based on putatively neutral markers has typically been overlooked. Here, we generated nuclear microsatellite and plastid DNA sequence data in Periploca laevigata, a plant taxon with an island-mainland distribution area, to (i) investigate whether selection affects GD estimates of populations across contrasting habitats and (ii) test the long-standing idea that island populations have lower GD than their main…

medicine and health carePeriploca laevigataMedicineLife sciencesNatural Selection and Contemporary EvolutionPeriploca angustifolia
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