A5064683427- Plant responses to elevated CO2
- Genetic Mapping and Diversity in Plants and Animals
- Greenhouse Technology and Climate Control
- Atmospheric chemistry and aerosols
- Leaf Properties and Growth Measurement
- Plant Stress Responses and Tolerance
- Plant Water Relations and Carbon Dynamics
- Genomics and Phylogenetic Studies
- Plant Reproductive Biology
- Chromosomal and Genetic Variations
- Plant nutrient uptake and metabolism
- Gene expression and cancer classification
- Remote Sensing in Agriculture
- Plant Molecular Biology Research
- Crop Yield and Soil Fertility
- Plant and animal studies
- Fire effects on ecosystems
- Neurobiology and Insect Physiology Research
- Photosynthetic Processes and Mechanisms
- Agriculture Sustainability and Environmental Impact
- Insect and Arachnid Ecology and Behavior
- Smart Agriculture and AI
- Plant Disease Resistance and Genetics
- Genetic diversity and population structure
- Genetics, Bioinformatics, and Biomedical Research
University of California, Berkeley
2024
University of California, Davis
2015-2019
University of Illinois Urbana-Champaign
2008-2014
Genomic Health (United States)
2012
Predictions of future ecosystem function and food supply from staple C(4) crops, such as maize, depend on elucidation the mechanisms by which environmental change growing conditions interact to determine plant performance. To test interactive effects elevated [CO(2)], drought, nitrogen (N) net photosynthetic CO(2) uptake (A) in world's most important crop, maize (Zea mays) was grown at ambient [CO(2)] (∼385 ppm) (550 with either high N (168 kg ha(-1) fertilizer) or limiting (no a site US...
ABSTRACT Antioxidant metabolism is responsive to environmental conditions, and proposed be a key component of ozone (O 3 ) tolerance in plants. Tropospheric O concentration ([O ]) has doubled since the Industrial Revolution will increase further if precursor emissions rise as expected over this century. Additionally, atmospheric CO 2 ([CO increasing at an unprecedented rate surpass 550 ppm by 2050. This study investigated molecular, biochemical physiological changes soybean exposed elevated...
Maize, in rotation with soybean, forms the largest continuous ecosystem temperate North America, therefore changes to biosphere-atmosphere exchange of water vapor and energy these crops are likely have an impact on Midwestern US climate hydrological cycle. As a C4 crop, maize photosynthesis is already CO2 -saturated at current concentrations ([CO2 ]) primary response elevated [CO2 ] decreased stomatal conductance (gs ). If not stimulated ], then reduced gs offset by greater canopy leaf area,...
Summary Improved predictions of fitness and yield may be obtained by characterizing the genetic controls environmental dependencies organismal ontogeny. Elucidating shape growth curves reveal novel that single‐time‐point ( STP ) analyses do not because, in theory, infinite numbers can result same final measurement. We measured leaf lengths widths Brassica rapa recombinant inbred lines RIL s) throughout modeled allometry as function valued traits FVT ), examined correlations between these...
Plant respiration responses to elevated CO2 concentration ( [CO2 ] ) have been studied for three decades without consensus about the mechanism of response. Positive effects on leaf attributed greater substrate supply resulting from stimulated photosynthesis. Negative reduced demand energy protein turnover assumed result lower N content. Arabidopsis thaliana was grown in ambient (370 ppm) and (750 with limiting ample availabilities. The stimulation dark attenuated (+12%) compared (+30%). This...
Abstract The use of genomic techniques to address ecological questions is emerging as the field ecology. Experimentation under environmentally realistic conditions investigate molecular response plants meaningful changes in growth and interactions defining feature Because impact global change factors on plant performance are mediated by direct effects at molecular, biochemical, physiological scales, gene expression analysis promises important advances understanding that have previously been...
Floral attraction traits can significantly affect pollinator visitation patterns, but adaptive evolution of these may be constrained by correlations with other traits. In some cases, molecular pathways contributing to floral are well characterized, offering the opportunity explore loci potentially underlying variation among individuals. Here, we quantify range in UV patterning (i.e. 'bulls-eye nectar guides) crop and wild accessions Brassica rapa. We then use experimental crosses examine...
Novel wildfire regimes are rapidly changing global ecosystems and pose significant challenges for biodiversity conservation ecosystem management. In this study, we used DNA metabarcoding to assess the response of arthropod pollinator communities large-scale wildfires across diverse habitat types in California. We sampled six reserves within University California Natural Reserve System, each which was partially burned 2020 Lightning Complex Using yellow pan traps target pollinators, collected...
Plant respiration responses to elevated growth [CO(2)] are key uncertainties in predicting future crop and ecosystem function. In particular, the effects of on over leaf development poorly understood. This study tested prediction that, due greater whole plant photoassimilate availability growth, induces transcriptional reprogramming a stimulation nighttime primordia, expanding leaves mature Arabidopsis thaliana. altered transcript abundance, but not for genes encoding respiratory proteins....
Plant developmental dynamics can be heritable, genetically correlated with fitness and yield, undergo selection. Therefore, characterizing the mechanistic connections between genetic architecture governing plant development resulting ontogenetic of plants in field settings is critically important for agricultural production evolutionary ecology. We use hierarchical Bayesian Function-Valued Trait (FVT) models to estimate Brassica rapa growth curves throughout ontogeny, across two treatments,...
Abstract Brassica rapa is a model species for agronomic, ecological, evolutionary, and translational studies. Here, we describe high-density SNP discovery genetic map construction B. recombinant inbred line (RIL) population derived from field collected RNA sequencing (RNA-Seq) data. This genotype data enables the detection correction of putative genome misassemblies accurate assignment scaffold sequences to their likely genomic locations. These assembly improvements represent 7.1–8.0%...
It has been more than 50 years since Arabidopsis (Arabidopsis thaliana) was first introduced as a model organism to understand basic processes in plant biology. A well-organized scientific community used this small reference species make numerous fundamental biology discoveries (Provart et al., 2016). Due an extremely well-annotated genome and advances high-throughput sequencing, our understanding of other become even intricate complex. Computational resources, including CyVerse,3 Araport,4...
Methamphetamine (MA) appears to produce neurotoxic effects, in part, through disruptions of energy metabolism. A recent study the whole-body proteome Drosophila melanogaster showed many changes metabolism-related proteins, leading us hypothesize that MA toxicity may cause To test this, we monitored response reserves and other metabolites MA-exposure with without addition dietary glucose. We also feeding behavior, locomotor activity respiration rates associated investigate how affects...
Abstract Plant morphology is inherently mathematical in that describes plant form and architecture with geometrical topological descriptors. The geometries topologies of leaves, flowers, roots, shoots their spatial arrangements have fascinated biologists mathematicians alike. Beyond providing aesthetic inspiration, quantifying has become pressing an era climate change a growing human population. Modifying morphology, through molecular biology breeding, aided by perspective, critical to...
ABSTRACT Plant developmental dynamics can be heritable, genetically correlated with fitness and yield, undergo selection. Therefore, characterizing the mechanistic connections between genetic architecture governing plant development resulting ontogenetic of plants in field settings is critically important for agricultural production evolutionary ecology. We use a hierarchical Bayesian Function-Valued Trait (FVT) approach to estimate Brassica rapa growth curves throughout ontogeny, across two...