Pablo Vargas

ORCID: 0000-0003-4502-0382
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About
Contact & Profiles
Research Areas
  • Plant Diversity and Evolution
  • Genetic diversity and population structure
  • Plant and animal studies
  • Mediterranean and Iberian flora and fauna
  • Ecology and Vegetation Dynamics Studies
  • Plant and Fungal Species Descriptions
  • Botany, Ecology, and Taxonomy Studies
  • Plant Parasitism and Resistance
  • Botany and Plant Ecology Studies
  • Species Distribution and Climate Change
  • Plant Taxonomy and Phylogenetics
  • Genomics and Phylogenetic Studies
  • Plant Pathogens and Fungal Diseases
  • Chromosomal and Genetic Variations
  • Marine and coastal plant biology
  • Mycorrhizal Fungi and Plant Interactions
  • Edible Oils Quality and Analysis
  • Plant Ecology and Taxonomy Studies
  • Plant Pathogens and Resistance
  • Plant chemical constituents analysis
  • Plant Reproductive Biology
  • Evolution and Paleontology Studies
  • Isotope Analysis in Ecology
  • Animal Ecology and Behavior Studies
  • Potato Plant Research

Real Jardín Botánico
2016-2025

RELX Group (United States)
2023

University of Groningen
2022

Center for Research and Advanced Studies of the National Polytechnic Institute
2022

Consejo Superior de Investigaciones Científicas
2009-2021

Universidad de Santiago de Chile
2016

Universitat de Barcelona
2015

The Open University
2013

Universitat Oberta de Catalunya
2013

National Research Council
2013

Mediterranean-type ecosystems (MTEs) are located today in southwestern Australia, the Cape Region of South Africa, Mediterranean Basin, California, and central Chile. These MTEs possess highest levels plant species richness world outside wet tropics. include a variety vegetation structures that range from iconic mediterranean-type shrublands to deciduous evergreen woodlands, forests, herblands grasslands. Sclerophyll similar today's was already present on oligotrophic soils humid climate...

10.1146/annurev-ecolsys-121415-032330 article EN Annual Review of Ecology Evolution and Systematics 2016-09-12

The location and timing of domestication the olive tree, a key crop in Early Mediterranean societies, remain hotly debated. Here, we unravel history wild olives (oleasters), then infer primary origins domesticated olive. Phylogeography Bayesian molecular dating analyses based on plastid genome profiling 1263 oleasters 534 cultivated genotypes reveal three main lineages pre-Quaternary origin. Regional hotspots diversity, species distribution modelling macrofossils support existence long-term...

10.1098/rspb.2012.2833 article EN Proceedings of the Royal Society B Biological Sciences 2013-02-06

BackgroundThe Mediterranean olive tree (Olea europaea subsp. europaea) was one of the first trees to be domesticated and is currently major agricultural importance in region as source oil. The molecular bases underlying phenotypic differences among cultivars, or between their wild relatives, remain poorly understood. Both cultivated have 46 chromosomes (2n).

10.1186/s13742-016-0134-5 article EN cc-by GigaScience 2016-06-23

Abstract Aims The 50th anniversary of the publication seminal book, Theory Island Biogeography , by Robert H. MacArthur and Edward O. Wilson, is a timely moment to review identify key research foci that could advance island biology. Here, we take collaborative horizon‐scanning approach 50 fundamental questions for continued development field. Location Worldwide. Methods We adapted well‐established methodology horizon scanning priority in biology, initiated it during Biology 2016 conference...

10.1111/jbi.12986 article EN Journal of Biogeography 2017-03-20

The most rapid species radiations have been reported from ‘evolutionary laboratories’, such as the Andes and Cape of South Africa, leading to prevailing view that diversification elsewhere has not dramatic. However, few studies explicitly assessed rates in northern regions Europe. Here, we show carnations ( Dianthus , Caryophyllaceae), a well-known group plants temperate Eurasia, diversified at rate ever or terrestrial vertebrates. Using phylogenetic methods, found majority belong lineage is...

10.1098/rspb.2009.2163 article EN Proceedings of the Royal Society B Biological Sciences 2010-01-27

Background and AimsThe genus Olea (Oleaceae) includes approx. 40 taxa of evergreen shrubs trees classified in three subgenera, Olea, Paniculatae Tetrapilus, the first which has two sections (Olea Ligustroides). Olive (the O. europaea complex) have been subject intensive research, whereas little is known about phylogenetic relationships among other species. To clarify biogeographical history this group, a molecular analysis related genera Oleaceae thus necessary.

10.1093/aob/mcp105 article EN Annals of Botany 2009-05-24

The unique biodiversity of most oceanic archipelagos is currently threatened by the introduction alien species that can displace native biota, disrupt ecological interactions, and profoundly affect community structure stability. We investigated threat aliens on pollination networks in species-rich lowlands five Galápagos Islands. Twenty per cent all (60 plants 220 pollinators) pooled network were aliens, being involved 38 interactions. Most insects, especially dipterans (36%), hymenopterans...

10.1098/rspb.2012.3040 article EN Proceedings of the Royal Society B Biological Sciences 2013-03-13

Alien plants are a growing threat to the Galápagos unique biota. We evaluated impact of alien on eight seed dispersal networks from two islands archipelago. Nearly 10 000 intact seeds 58 species were recovered droppings 18 bird and reptile dispersers. The most dispersed invaders Lantana camara , Rubus niveus Psidium guajava latter likely benefiting an asynchronous fruit production with native plants, which facilitate their consumption spread. Lava lizards 27 species, being important...

10.1098/rspb.2012.2112 article EN Proceedings of the Royal Society B Biological Sciences 2012-11-21

Abstract Aim Four long‐distance dispersal ( LDD ) modes have generally been considered to play central roles in the colonization of islands by plants: anemochory (dispersal wind), thalassochory oceanic currents), endozoochory (internal animals) and epizoochory (external animals). However, seeds can also be transported vectors different from those which they are best suited (non‐standard dispersal), meaning that actual vector cannot inferred based on diaspore traits alone. We propose an...

10.1111/geb.12273 article EN Global Ecology and Biogeography 2014-12-29

Significance Invasive alien species pose major threats to biodiversity and ecosystems. However, identifying drivers of invasion success has been challenging, in part because can achieve invasiveness different ways, each corresponding aspects demographics distribution. Employing a multidimensional perspective Europe’s flora, we find generally fall along an axis from overall poor invaders super that become abundant, widespread, invade diverse habitats. Some deviate this pattern are recently...

10.1073/pnas.2021173118 article EN Proceedings of the National Academy of Sciences 2021-05-28

Phylogenetic relationships in the Olea europaea complex and phylogeography of 24 populations Macaronesian olive (O. ssp. cerasiformis) were assessed by using three molecular markers: nuclear ribosomal internal transcribed spacer 1 (ITS-1) sequences, randomly amplified polymorphic DNAs (RAPD), intersimple sequence repeats (ISSR). Parsimony analysis ITS-1 sequences Neighbour-joining (NJ) analyses RAPD ISSR banding variation revealed four major lineages O. complex: (1) cuspidata; (2)...

10.1046/j.1365-294x.2000.00942.x article EN Molecular Ecology 2000-07-01

Abstract Aim The olive tree is considered one of the best indicators Mediterranean climate. species’ distribution associated with geographical and bioclimatic factors, as well being influenced by a long period cultivation. Despite concerted efforts different research groups, origin still remains elusive. In present study, relationships between taxa populations covering entire range Olea europaea were investigated using both maternal (plastid genome) biparental (nuclear markers to disclose...

10.1111/j.1365-2699.2006.01653.x article EN Journal of Biogeography 2006-12-21

Abstract A preliminary synthesis of diversification patterns alpine plants in the Mediterranean region Europe is presented based on seven plant groups displaying morphological differentiation and infraspecific taxa. Both previous new phylogenetic results from ITS sequences fingerprinting data suggest different colonization routes modes speciation Androsace vitaliana (recent Iberian Peninsula), Anthyllis montana (west‐to‐east Europe), Arenaria tetraquetra (colonization SE mountains to...

10.2307/3647383 article EN Taxon 2003-08-01

Abstract Aim The post‐glacial range dynamics of many European plant species have been widely investigated, but information rapidly diminishes as one moves further back in time. Here we infer the historical shifts Laurus , a paradigmatic tree Tethyan flora that has covered southern Eurasia since Oligo‐Miocene, by means phylogenetic and phylogeographical analyses. Location Mediterranean Basin, Black Sea Macaronesian archipelagos (Azores, Madeira, Canary Islands). Methods We analysed plastid...

10.1111/j.1365-2699.2009.02091.x article EN Journal of Biogeography 2009-03-25

Phylogenetic and phylogeographic investigations have been previously performed to study the evolution of olive tree complex (Olea europaea). A particularly high genomic diversity has found in north-west Africa. However, date no exhaustive addressed infer putative polyploidization events their evolutionary significance diversification its relatives.Representatives six subspecies were investigated using (a) flow cytometry estimate genome content, (b) highly variable nuclear microsatellites...

10.1093/aob/mcm275 article EN Annals of Botany 2007-11-15

We examined the phylogenetic history of Linaria with special emphasis on Mediterranean sect. Supinae (44 species). revealed extensive highly supported incongruence among two nuclear (ITS, AGT1) and plastid regions (rpl32-trnLUAG, trnS-trnG). Coalescent simulations, a hybrid detection test species tree inference in *BEAST that incomplete lineage sorting hybridization may both be responsible for incongruent pattern observed. Additionally, we present multilabelled as an alternative approach...

10.1371/journal.pone.0039089 article EN cc-by PLoS ONE 2012-06-29

Chloroplast (trnL-F and rbcL) sequences were used to reconstruct the phylogeny of Geraniaceae Hypseocharitaceae.According these data Hypseocharitaceae are monophyletic.Pelargonium Monsonia sisters largest clade Geraniaceae, formed by Geranium, Erodium California.According molecular dating dispersal-vicariance analysis, split stem branches probably occurred during Oligocene, in southern Africa or plus Mediterranean area.However, their diversification Miocene, coinciding with beginning major...

10.1600/036364408784571482 article EN Systematic Botany 2008-04-01

Chromosome evolution has been demonstrated to have profound effects on diversification rates and speciation in angiosperms. While polyploidy predated some major radiations plants, it also related decreased rates. There comparatively little attention the evolutionary role of gains losses single chromosomes, which may or not entail changes DNA content (then called aneuploidy dysploidy, respectively). In this study we investigate chromosome number transitions possible associated genome size...

10.1371/journal.pone.0085266 article EN cc-by PLoS ONE 2014-01-09

Owing to food scarcity and the high densities that vertebrates often reach on islands, typical insect- seed-eaters widen their feeding niche interact with a greater fraction of species than mainland counterparts. This phenomenon, coined here 'interaction release', has been previously reported for single but never an entire community. During 4 years, we gathered data bird–flower visitation 12 Galápagos islands. We show all sampled land birds exploit floral resources act as potential...

10.1038/ncomms7376 article EN cc-by-nc-nd Nature Communications 2015-03-10

Disentangling species boundaries and phylogenetic relationships within recent evolutionary radiations is a challenge due to the poor morphological differentiation low genetic divergence between species, frequently accompanied by phenotypic convergence, interspecific gene flow incomplete lineage sorting. Here we employed genotyping-by-sequencing (GBS) approach, in combination with morphometric analyses, investigate small western Mediterranean clade flowering plant genus Linaria that radiated...

10.1093/sysbio/syx062 article EN Systematic Biology 2017-07-04
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