Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1321328 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:The study of orchid mycorrhizal interactions is particularly complex because of the peculiar life cycle of these plants and their diverse trophic strategies. Here, large-scale transcriptomics has been applied to investigate gene expression in the mycorrhizal roots of the terrestrial mixotrophic orchid Limodorum abortivum under natural conditions. Our results provide new insights into the mechanisms underlying plant-fungus interactions in orchids and in particular on the plant responses to the mycorrhizal symbiont(s) in adult roots. Comparison with gene expression in mycorrhizal roots of another orchid species, Oeceoclades maculata, suggests that amino acids may represent the main nitrogen source in both protocorms and adult orchids, at least for mixotrophic species. The upregulation, in mycorrhizal L. abortivum roots, of some symbiotic molecular marker genes identified in mycorrhizal roots from other orchids as well as in arbuscular mycorrhiza, suggests a common plant core of genes in endomycorrhizal symbioses. Further efforts will be required to understand whether the specificities of orchid mycorrhiza depend on fine-tuned regulation of these common components, or whether specific additional genes are involved.
2021-01-31 | GSE159700 | GEO
Project description:Fungal diversity associated with terrestrial orchids in southern Chile
| PRJNA761864 | ENA
Project description:Insights into function and regulation of microRNAs by decoding degradation dynamics
| PRJNA294598 | ENA
Project description:The Zygnematophyceae are the closest algal relatives of land plants and hence interesting to understand land plant evolution. Species of the genus Serritaenia have an aerophytic lifestyle and form colorful, mucilaginous capsules, which surround the cells and block harmful solar radiation. Under laboratory conditions the production of this “sunscreen mucilage” can be induced by ultraviolet B radiation. The present dataset reveals insights into the cellular reaction of this alga to UV radiation (a major stressor in terrestrial habitats) and allows for comparisons with other algae and land plants to draw evolutionary conclusions.
2024-03-12 | E-MTAB-13832 | biostudies-arrayexpress
Project description:Insights into function and regulation of microRNAs by decoding degradation dynamics [serum]
| PRJNA294600 | ENA
Project description:Insights into function and regulation of microRNAs by decoding degradation dynamics [4SU]
| PRJNA294601 | ENA
Project description:In the present study, we discover the presence of m2A in chloroplast rRNA and tRNA, as well as cytosolic tRNA, in multiple plant species. We identify six m2A-modified chloroplast tRNAs and two m2A-modified cytosolic tRNAs across different plants. Furthermore, we characterize three Arabidopsis m2A methyltransferases—RLMNL1, RLMNL2, and RLMNL3—which methylate chloroplast rRNA, chloroplast tRNA, and cytosolic tRNA, respectively. Our findings demonstrate that m2A37 promotes a relaxed conformation of tRNA, enhancing translation efficiency in chloroplast and cytosol by facilitating decoding of tandem m2A-tRNA-dependent codons. This study provides insights into the molecular function and biological significance of m2A, uncovering a layer of translation regulation in plants.
2024-02-03 | GSE127146 | GEO
Project description:Understanding the genomic toolkit that enabled animal terrestrialization, the shift from aquatic to terrestrial habitats, is key to uncovering the evolutionary origins of land biodiversity. Yet, the genomic basis of the physiological and metabolic adaptations required for life on land remains poorly understood across most terrestrial animal phyla. Planarians (Platyhelminthes) offer a powerful model, as only one terrestrial lineage, the Geoplanidae (order Tricladida), is known. Here, we integrated genomics, transcriptomics, and proteomics to explore the genetic changes potentially supporting terrestrial adaptation. We identified a major burst of gene gain in the lineage leading to Tricladida, preceding the radiation of terrestrial planarians. Upon abiotic stress exposure, terrestrial and freshwater species exhibited distinct responses: most differentially expressed genes belonged to orthogroups gained in Tricladida, with over half under strong directional selection in terrestrial flatworms, suggesting their adaptive relevance. Transcriptomic profiles revealed divergent strategies: terrestrial species upregulated ancient genes, while freshwater species downregulated a separate set of ancestral genes. Across all datasets, the abiotic stress response toolkit in terrestrial planarians was markedly different from freshwater relatives, with significant regulatory divergence. Our results highlight gene gain and co-option, rather than lineage-specific innovations, as key drivers of terrestrial flatworm evolution, emphasizing genomic exaptation and regulatory shifts as central to terrestrialization in Platyhelminthes. This study provides the first genome-wide view of the genetic basis of flatworm terrestrialization and sheds light on broader patterns of animal terrestrial adaptation.
2026-04-06 | PXD074775 | Pride