- Chromosomal and Genetic Variations
- Plant tissue culture and regeneration
- Traumatic Brain Injury and Neurovascular Disturbances
- Genetic diversity and population structure
- Anesthesia and Sedative Agents
- Eicosanoids and Hypertension Pharmacology
- Insect symbiosis and bacterial influences
- Plant and animal studies
- Cardiac, Anesthesia and Surgical Outcomes
- Anesthesia and Neurotoxicity Research
- Ecology and Vegetation Dynamics Studies
- Insect behavior and control techniques
- Genomics and Phylogenetic Studies
- Species Distribution and Climate Change
- Airway Management and Intubation Techniques
- Neurosurgical Procedures and Complications
- Peroxisome Proliferator-Activated Receptors
- Alcoholism and Thiamine Deficiency
- Plant Pathogenic Bacteria Studies
- Spinal Dysraphism and Malformations
- Foreign Body Medical Cases
- Plant Pathogens and Resistance
- Coastal wetland ecosystem dynamics
- Infant Nutrition and Health
- Migraine and Headache Studies
University of Vienna
2017-2025
BOKU University
2021-2024
Austrian Research Centre for Forests
2021-2022
Indiana University School of Medicine
1984-1992
Indiana University – Purdue University Indianapolis
1983-1992
Riley Hospital for Children
1992
University Medical Center
1983-1984
Indiana University
1983
Indianapolis Zoo
1982
Abstract Whole‐genome duplication has shaped the evolution of angiosperms and other organisms, is important for many crops. Structural reorganization chromosomes repatterning gene expression are frequently observed in allopolyploids, with physiological ecological consequences. Recurrent origins from different parental populations widespread among polyploids, resulting an array lineages that provide excellent models to uncover mechanisms adaptation divergent environments early phases...
SUMMARY Phenotypic plasticity, the dynamic adjustment of traits to environmental variations, is crucial for enabling species exploit broader niches and withstand suboptimal conditions. This adaptability particularly relevant newly formed allopolyploids, which possess redundant gene copies must become established in diverse environments distinct from their parents other relatives. By evaluating expression root mycobiome among two ecologically divergent sibling allopolyploid marsh orchids (...
Abstract Understanding how organisms adapt to the environment is a major goal of modern biology. Parallel evolution—the independent evolution similar phenotypes in different populations—provides powerful framework investigate evolutionary potential populations, constraints evolution, its repeatability and therefore predictability. Here, we quantified degree gene expression functional parallelism across replicated ecotype formation Heliosperma pusillum (Caryophyllaceae), gained insights into...
Wolbachia is a maternally inherited obligate endosymbiont that can induce wide spectrum of effects in its host, ranging from mutualism to reproductive parasitism. At the genomic level, recombination within and between strains, transposable elements, horizontal transfer strains host species make an evolutionarily dynamic bacterial system. The invasive cherry fruit fly Rhagoletis cingulata arrived Europe North America ~40 years ago, where it now co-occurs with native pest R. cerasi. This...
Abstract The orchid family is the largest in angiosperms, but little known about molecular basis of significant variation they exhibit. We investigate here transcriptomic divergence between two European terrestrial orchids, Dactylorhiza incarnata and fuchsii , integrate these results context their distinct ecologies that we also document. Clear signals lineage‐specific adaptive evolution protein‐coding sequences are identified, notably targeting elements biotic defence, including both...
Endosymbiont-induced cytoplasmic incompatibility (CI) may play an important role in arthropod speciation. However, whether CI consistently becomes associated or coupled with other host-related forms of reproductive isolation (RI) to impede the transfer endosymbionts between hybridizing populations and further divergence process remains open question. Here, we show that varying degrees pre- postmating RI exist among allopatric two interbreeding cherry-infesting tephritid fruit flies...
Le suxamethonium ne produit pas d'augmentation de la kaliemie apres une induction par le thiopental chez l'enfant avec myelomeningocele opere pour chirurgie elective
Hybridization and polyploidy are prevalent drivers of speciation, with novel ecological properties potentially arising, among other mechanisms, through changes in gene regulation by small RNAs (smRNAs), linked to transposable element (TE) dynamics. With a common garden set-up, we comparatively investigated smRNA abundance two young, but widely distributed, ecologically divergent sibling allotetraploid marsh orchids ( Dactylorhiza majalis D. traunsteineri ) their diploid parents. Despite...
Thiopental and pentobarbital have been used in high doses to protect the brain from injury following hypoxia or reduce intracranial pressure. This study was performed determine whether these barbiturates differ cardiovascular effects when present plasma concentrations that produce equivalent CNS effects. The of thiopental on heart rate, stroke volume/kg, cardiac output/kg, systemic vascular resistance, mean arterial pressure, central venous pressure were statistically indistinguishable at...
Thiopental and pentobarbital have been used in high doses to protect the brain from injury following hypoxia or reduce intracranial pressure. This study was performed determine whether these barbiturates differ cardiovascular effects when present plasma concentrations that produce equivalent CNS effects. The of thiopental on heart rate, stroke volume/kg, cardiac output/ kg, systemic vascular resistance, mean arterial pressure, central venous pressure were statistically indistinguishable at...
Abstract Whole-genome duplication, in particular allopolyploidy, has shaped the evolution of angiosperms and other organisms. Structural reorganization chromosomes repatterning gene expression is frequently observed early generation allopolyploids, with potential ecological consequences. The relative contributions environmental intrinsic drivers to these changes are unknown. We show here that marsh orchids ( Dactylorhiza , Orchidaceae), recurrently-formed allopolyploids characterized by...
Dierdorf, Stephen F. MD; McNiece, William L. Wolfe, Thomas M. Rao, Chalapathi C. Krishna, Gopal Means, Lyn J. Haselby, Kenneth A. MD Author Information
Abstract Phenotypic plasticity, the dynamic adjustment of traits to environmental variations, is pivotal enabling species exploit broader niches and withstand suboptimal conditions. This adaptability expected be particularly relevant for newly formed allopolyploids, which have redundant gene copies must establish themselves in diverse environments, distinct from their parents other relatives. Here we investigate ecologically divergent sibling allopolyploid marsh orchids ( Dactylorhiza )...
ABSTRACT The introduction of non‐native species across the world represents a major global challenge. Retracing invasion origin is an important first step in understanding process, often requiring detailed sampling within native range. Insect frequently host Wolbachia , widespread endosymbiotic bacterium that manipulates reproduction to increase infected female fitness. Here, we draw on spatial variation infection frequencies actively spreading strain w Cer2 investigate European cherry fruit...
Abstract Understanding how organisms adapt to the environment is a major goal of modern biology. Parallel evolution - independent similar phenotypes in different populations provides powerful framework investigate evolutionary potential populations, constraints evolution, its repeatability and therefore predictability. Here, we quantified degree gene expression functional parallelism across replicated ecotype formation Heliosperma pusillum (Caryophyllaceae), gained insights into architecture...