A5025814531- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Genetic diversity and population structure
- Seed Germination and Physiology
- Plant Ecology and Taxonomy Studies
- Plant Water Relations and Carbon Dynamics
- Plant Diversity and Evolution
- Genomics and Phylogenetic Studies
- Horticultural and Viticultural Research
- Remote Sensing in Agriculture
- Evolution and Genetic Dynamics
- Species Distribution and Climate Change
- Chromosomal and Genetic Variations
- Mediterranean and Iberian flora and fauna
- Mathematical and Theoretical Epidemiology and Ecology Models
- Animal Ecology and Behavior Studies
- Forest ecology and management
- Botany and Plant Ecology Studies
- Fire effects on ecosystems
- Plant Parasitism and Resistance
- Plant Taxonomy and Phylogenetics
- Tree-ring climate responses
- Plant and Fungal Species Descriptions
- Yeasts and Rust Fungi Studies
- Wildlife Ecology and Conservation
Universidad de Granada
2014-2024
Centre d'Écologie Fonctionnelle et Évolutive
2015-2019
Centre National de la Recherche Scientifique
2015-2019
Estacion Experimental de Zonas Aridas
2015-2019
Université Paul-Valéry Montpellier
2015-2019
Université de Montpellier
2015-2019
École Pratique des Hautes Études
2015-2016
National Evolutionary Synthesis Center
2011-2014
Harvard University
2009-2012
Duke University
2009-2012
Germination behavior is one of the earliest phenotypes expressed by plants. This fact has several consequences for evolution postgermination traits, ecological niches, and geographic ranges. By determining conditions that plants experience after they germinate, germination influences phenotypic expression natural selection on them, their genetic basis. The breadth niches may influence ranges species. Because early, it frequently subjected to before other traits are expressed. We review...
It is difficult to overstate the cultural and biological impacts that domestication of plants animals has had on our species. Fundamental questions regarding where, when, how many times took place have been primary interest within a wide range academic disciplines. Within last two decades, advent new archaeological genetic techniques revolutionized understanding pattern process agricultural origins led modern way life. In spring 2011, 25 scholars with central in representing fields genetics,...
Seed dormancy, by controlling the timing of germination, can strongly affect plant survival. The kind seed therefore, influence both population and species-level processes such as colonization, adaptation, speciation, extinction. We used a dataset comprising over 14,000 taxa in 318 families across plants to test hypotheses on evolution different kinds dormancy their association with lineage diversification. found morphophysiological be most likely ancestral state plants, suggesting that...
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.
Seed dormancy is expected to provide ecological advantages by adjusting germination the favorable growth period. However, many species produce nondormant seeds, particularly in wet tropical forests, a biogeographic pattern that not well accounted for current models. We hypothesized global distribution of dormant seeds derives from their adaptive value predictably fluctuating (i.e. seasonal) environments. advantage conferred might ultimately depend on other seed attributes, size. This general...
Summary Because establishing a new population often depends critically on finding mates, individuals capable of uniparental reproduction may have colonization advantage. Accordingly, there should be an over‐representation colonizing species in which can reproduce without mate, particularly isolated locales such as oceanic islands. Despite the intuitive appeal this filter hypothesis (known Baker's law), more than six decades analyses yielded mixed findings. We assembled dataset island and...
We sought novel evolutionary insights for the highly diverse Saxifragales by constructing a large phylogenetic tree encompassing 36.8% of species-level biodiversity. •We built 909 species and used this hypothesis to examine character evolution annual or perennial habit, woody herbaceous ovary position, petal number, carpel stamen ratio. employed likelihood approaches investigate effect habit life history on speciation extinction within clade. •Two major shifts occurred from ancestor with...
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...
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...
In the wild, organismal life cycles occur within seasonal cycles, so shifts in timing of developmental transitions can alter environment experienced subsequently. Effects genes that control prior events therefore be magnified wild because they determine conditions by subsequent stages, which influence phenotypic expression. We examined such environmentally induced pleiotropy developmental-timing a field experiment with Arabidopsis thaliana. When studied under natural variation, an A....
Significance Our knowledge of the domestication animal and plant species comes from a diverse range disciplines, interpretation patterns in data these disciplines has been dominant paradigm research. However, such interpretations are easily steered by subjective biases that typically fail to account for inherent randomness evolutionary processes, which can be blind emergent data. The testing explicit models using computer simulations, availability powerful statistical techniques fit observed...
Abstract Climatic dryness imposes limitations on vascular plant growth by reducing stomatal conductance, thereby decreasing CO 2 uptake and transpiration. Given that transpiration‐driven water flow is required for nutrient uptake, climatic stress‐induced deficit could be a key mechanism decreased performance under prolonged drought. We propose the existence of an “isohydric trap,” dryness‐induced detrimental feedback leading to stoichiometry imbalance in strict isohydric species. tested this...
Geographical isolation and polyploidization are central concepts in plant evolution. The hierarchical organization of archipelagos this study provides a framework for testing the evolutionary consequences polyploid taxa populations occurring isolation. Using amplified fragment length polymorphism simple sequence repeat markers, we determined genetic diversity differentiation patterns at three levels geographical Olea europaea: mainland-archipelagos, islands within an archipelago, island. At...
1. Canopy plasticity, the expression of different leaf phenotypes within crown an individual tree has complex functional and evolutionary implications that remain to be thoroughly assessed. We hypothesized it can lead disparity in how leaves positions canopy change with allometric growth population genetic structure. 2. Leaf inner outer were estimated using eight morphological physiological characters. All traits measured under field conditions six populations Olea europaea again a common...
• Seed dormancy can affect life history through its effects on germination time. Here, we investigate influence beyond the timing of germination. We used response Arabidopsis thaliana to chilling at and flowering stages test following: how seed affects responses environment; whether variation in adult phenology independently time; environmental cues experienced by dormant seeds have an effect history. Dormancy conditioned low temperatures, such that prolonged periods induced nondormant...
Dispersal and establishment ability can influence evolutionary processes such as geographic isolation, adaptive divergence extinction probability. Through these population-level dynamics, dispersal may also macro-evolutionary species distributions diversification. This study examined patterns of evolution dispersal-related fruit traits, how the traits is correlated with shifts in range size, habitat diversification rates tribe Brassiceae (Brassicaceae). The phylogenetic analysis included 72...
as a long-lived sprouter, responds plastically to environmental variation. In this study, the role of foliar plasticity mechanism habitat selection and modification within canopy across contrasted habitats was characterized. An examination made differential contribution inner outer layers crown expressed in field by adult individuals its dependence on genetic factors. Within-crown variation eight traits examined nine populations dominated Q. coccifera. The difference between mean trait...
Mixed dispersal syndromes have historically been regarded as a bet-hedging mechanism that enhances survivorship in unpredictable environments, ensuring some propagules stay the maternal environment while others can potentially colonize new sites. However, this entails paying costs of both and non-dispersal. Propagules disperse are likely to encounter unfavorable conditions, non-dispersing might form inbred populations close relatives. Here, we investigate conditions under which mixed emerge...
Woody plants, as sessile and long-lived organisms, are expected to have effective mechanisms for dealing with recurrent environmental stresses. In the present study, we hypothesized that phenotypic plasticity (the ability express alternative phenotypes) integration (covariation among functionally related traits) elicited in plants under stressful wind speed conditions. We investigated within-crown variation of nine vegetative traits a tree species (Olea europaea subsp. guanchica) six...