Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1009150 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Anthropogenic pollution change global climate
| PRJEB53570 | ENA
Project description:Local adaptation is often a product of environmental variations in geographical space and has implications for biodiversity conservation. We investigated the role of latitudinal heterogeneity in climate on the organization of genetic and phenotypic variation in the dominant coastal tree Avicennia schaueriana. In a common garden experiment, samples from an equatorial region, with pronounced seasonality in precipitation, accumulated less biomass, and showed lower stomatal conductance and transpiration, narrower xylem vessels, smaller leaves and higher reflectance of long wavelengths by the stem epidermis than samples from a subtropical region, with seasonality in temperature and no dry season. Transcriptomic differences identified between trees sampled under field conditions at equatorial and subtropical sites, were enriched in functional categories such as responses to temperature, solar radiation, water deficit, photosynthesis and cell wall biosynthesis. Remarkably, the diversity based on genome-wide SNPs revealed a north-south genetic structure and signatures of selection were identified for loci associated with photosynthesis, anthocyanin accumulation and the responses to osmotic and hypoxia stresses. Our results suggest the existence of divergence in key resource-use characteristics, likely driven by seasonality in water deficit and solar radiation. These findings provide a basis for conservation plans and for predicting coastal plants responses to climate change.
2020-05-15 | GSE116060 | GEO
Project description:Wildfires have increased in frequency, size, and intensity in recent decades, due to increasing global temperatures and dryer climates attributable to anthropogenic climate change. Adverse respiratory effects from wildfire smoke are of specific concern for wildland firefighters who have prolonged or repeated exposure to woodsmoke. Following repeated exposure of low and high woodsmoke in rats, we performed bulk RNA sequencing on lung tissue.
2024-06-05 | GSE237251 | GEO
Project description:Due to its high altitude and extreme climate conditions, the Tibetan plateau is a region vulnerable to the impact of climate changes and anthropogenic perturbation, thus understanding how its microbial communities function may be of high importance. Here, we report a study to profile soil microbial structural genes, which infers functional roles of microbial communities, aiming to explore potential microbial responses to climate changes and anthropogenic perturbation. Using a microarray-based metagenomics tool named GeoChip 4.0, we showed that microbial communities in treatment site were distinct, compared with those in control site, e.g. shrubland vs grassland, grazing site vs ungrazing site, or warmer site vs colder site. Substantial variations were apparent in stress, N and C cycling genes, but they were in line with the functional roles of these genes.
2013-11-16 | GSE52425 | GEO
Project description:High temperature events can disrupt species interactions, including those among hosts, symbionts, and natural enemies. Understanding the genetic and physiological processes underlying these disruptions is a critical scientific challenge in this era of anthropogenic climate change. We explore how high temperatures disrupt the interactions among an herbivorous insect host, Manduca sexta, its insect parasitoid, Cotesia congregata, and the parasitoid’s symbiotic virus. In this system, high temperatures kill developing parasitoids, but not hosts. We evaluated the physiological and transcriptomic causes of thermal mismatch in ecological interactions using parasitoid egg in vitro experiments, immunological assays, and RNAseq. We found that high temperatures disrupt the capacity of the parasitoid’s symbiotic virus to immunosuppress the host insect, resulting in thermal mismatch and death of the parasitoid. At the transcriptomic level, key viral genes involved in suppressing host immune pathways showed reduced expression, driven by the virus’s circular genomic structure. This work is among the first to demonstrate the genetic and physiological mechanisms by which a symbiont limits the ecological functioning of host-parasite dynamics, and provides a framework for understanding how molecular processes give rise to ecological outcomes in response to high temperature events caused by climate change.
2024-08-04 | GSE273477 | GEO
Project description:Seed development, which depends on mother plant genetic background and environmental conditions, is a major component determining seed composition. Seed quality is a main agricultural concern, impacting both food and non-food applications, while also playing a central role in biodiversity conservation and environment protection. Climate change, characterized, among other stresses, by the emergence of extremely high temperatures, constitute a critical global threat to agriculture. Specialized metabolites (SMs) play crucial roles in the interactions of plants and seeds with their environments. Several SMs are known to be protective compounds involved in seed stress responses, thus impacting directly or indirectly their quality. In this study, we performed untargeted metabolomic (LC-MS/MS) and transcriptomic (RNA-Seq) analyses of Arabidopsis thaliana seeds harvested at six developmental stages (Globular, Transition, Torpedo, Bent cotyledon, Mature green and Dry seed), and developed under control and warm temperature conditions. Those data provide an original and valuable resource for future studies on the role of SMs and genes involved in seed warm thermic stress responses and for the study of their regulation and functions during seed development.
| MSV000095846 | MassIVE
Project description:SoilForEUROPE-Predicting European forest soil biodiversity and its functioning under ongoing climate change
| PRJEB33611 | ENA