A5080435320- Genetic diversity and population structure
- Ecology and Vegetation Dynamics Studies
- Plant Reproductive Biology
- Genetic Mapping and Diversity in Plants and Animals
- Evolution and Paleontology Studies
- Evolution and Genetic Dynamics
- Plant and animal studies
- Genomics and Phylogenetic Studies
- Plant responses to elevated CO2
- Cancer Genomics and Diagnostics
- Genetic Syndromes and Imprinting
- Molecular Biology Techniques and Applications
- Horticultural and Viticultural Research
- Insect-Plant Interactions and Control
- Animal Ecology and Behavior Studies
- Gene expression and cancer classification
- Plant Stress Responses and Tolerance
- Plant Water Relations and Carbon Dynamics
- Chromosomal and Genetic Variations
- Physiological and biochemical adaptations
- Plant Diversity and Evolution
- Single-cell and spatial transcriptomics
- Photosynthetic Processes and Mechanisms
- Plant Molecular Biology Research
- Plant Physiology and Cultivation Studies
Max Planck Institute for Plant Breeding Research
2017-2025
RWTH Aachen University
2022
Max Planck Society
2022
University of Vienna
2017-2022
Max Perutz Labs
2017-2022
Vienna Biocenter
2017
Over the past 20 y, many studies have examined history of plant ecological and molecular model, Arabidopsis thaliana, in Europe North America. Although these informed us about recent species, early has remained elusive. In a large-scale genomic analysis African A. we sequenced genomes 78 modern herbarium samples from Africa analyzed together with over 1,000 previously Eurasian samples. striking contrast to expectations, find that all individuals sampled are native this continent, including...
Abstract Understanding how populations adapt to abrupt environmental change is necessary predict responses future challenges, but identifying specific adaptive variants, quantifying their selection and reconstructing detailed histories challenging in natural populations. Here, we use Arabidopsis from the Cape Verde Islands as a model investigate mechanisms of adaptation after sudden shift more arid climate. We find genome-wide evidence multivariate pressures. In particular, time flowering...
The study of model organisms on islands may shed light rare long-range dispersal events, uncover signatures local evolutionary processes, and inform demographic inference the mainland. Here, we sequenced genomes Arabidopsis thaliana samples from oceanic island Madeira. These include most diverged worldwide, likely a result long isolation island. We infer that colonization Madeira happened between 70 85 ka, consistent with propagule (of size ≥10), or an ecological window opportunity. This...
Abstract Genomic variation in the model plant Arabidopsis thaliana has been extensively used to understand evolutionary processes natural populations, mainly focusing on single-nucleotide polymorphisms. Conversely, structural largely ignored spite of its potential dramatically affect phenotype. Here, we identify 155,440 indels and variants ranging size from 1 bp 10 kb, including presence/absence (PAVs), inversions, tandem duplications 1,301 A. accessions Morocco, Madeira, Europe, Asia, North...
ABSTRACT Diversification mechanisms in Sub‐Saharan Africa have long attracted research interest, with varying support for either allopatric or parapatric models of speciation. However, studies seldom been performed across the entire continent, a scale which could elucidate relative importance and divergence. To shed light on continental‐scale patterns African biogeography diversification, we investigated historical demography bird continent‐wide distribution Africa, Yellow‐Rumped Tinkerbird,...
Most well-characterized cases of adaptation involve single genetic loci. Theory suggests that multilocus adaptive walks should be common, but these are challenging to identify in natural populations. Here, we combine trait mapping with population modeling show a two-step process rewired nutrient homeostasis Arabidopsis as it colonized the base an active stratovolcano characterized by extremely low soil manganese (Mn). First, variant disrupted primary iron (Fe) uptake transporter gene (IRT1)...
Abstract Energy production and metabolism are intimately linked to ecological environmental constraints across the tree of life. In plants, which depend on sunlight produce energy, link between primary environment is especially strong. By governing CO2 uptake for photosynthesis transpiration, leaf pores, or stomata, couple energy determine productivity water-use efficiency (WUE). Although evolution known tune physiological traits local environment, we lack knowledge specific links molecular...
Abstract The challenges to which plants are exposed in urban environments represent, miniature, the face as a result of global environmental change. Hence, habitats provide unique opportunity assess whether processes local adaptation taking place despite short temporal and geographical scales that characterize Anthropocene. We quantified ecological diversity hosting Arabidopsis thaliana populations. Using plant community indicators, we show these patches differ their levels soil nutrient...
Flowering phenology is important in the adaptation of many plants to their local environment, but its adaptive value has not been extensively studied herbaceous perennials. We used Arabis alpina as a model system determine importance flowering fitness perennial with wide geographical range. Individual representative genetic diversity (accessions) were collected across Europe, including Spain, Alps and Scandinavia. The behaviour these accessions was documented controlled conditions,...
Abstract The challenges to which plants are exposed in urban environments represent, miniature, the face as a result of global environmental change. Hence, habitats provide unique opportunity assess whether processes local adaptation taking place despite short temporal and geographical scales that characterize Anthropocene. We quantified ecological diversity hosting A. thaliana populations. Using plant community indicators, we show these patches differ their levels soil nutrient content...
<title>Abstract</title> Multicopy genomic regions are repeated sequences that can bias genomics analyses. Here, we present a method to identify and filter multicopy in population-level data of any species. The broad applicability this stems from flexible Expectation-Maximization framework detect excess heterozygosity while simultaneously fitting inbreeding levels. By combining signature with read ratio deviations, sequencing coverage, clustering technique, our attains high power. We show...