Arabidopsis thaliana
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ABSTRACT:
PROVIDER: PRJNA115179 | ENA |
REPOSITORIES: ENA
Similar Datasets
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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.
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Project description:In Angiosperms, the continuation of plant species is intricately dependent on the funiculus multifaceted role in nutrient transport, mechanical support, and dehiscence of seeds. SEEDSTICK (STK) is a MADS-box transcription factor involved in seed size and abscission, and one of the few genes identified as affecting funiculus growth. Given the importance of the funiculus to a correct seed development, allied with previous phenotypic observations of stk mutants, we performed a transcriptomic analysis of stk funiculi from floral stage 17, using RNA-sequencing, to infer on the deregulated networks of genes. The generated dataset of differentially expressed genes was enriched with cell wall biogenesis, cell cycle, sugar metabolism and transport terms, all in accordance with stk phenotype observed in funiculi from floral stage 17. We selected eight differentially expressed genes for transcriptome validation using qPCR and/or promoter reporter lines. Those genes were involved with abscission, seed development or novel functions in stk funiculus, such as hormones/secondary metabolites transport, for transcriptome validation using qPCR and/or promoter reporter lines. Overall, the analysis performed in this study allowed delving into the STK-network established in Arabidopsis funiculus, fulfilling a literature gap. Simultaneously, our findings reinforced the reliability of the transcriptome, making it a valuable resource for candidate genes selection for functional genetic studies in the funiculus. This will enhance our understanding on the regulatory network controlled by STK, on the role of the funiculus and identified processes and new candidate genes that will enable a better understanding on the role of this sporophytic structure and how seed development may be affected by itthem.
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Project description:gnp3_tri33-arabidoseed - seed specific genes - WP3 : Biodiversity of seed traits : state of the art - This experiment aimed to identify the genes expressed in the seeds vs siliques (easiest to harvest), and to know if the expression pattern of the whole silique could provide a valuable information. Keywords: organ comparison
2009-05-30 | GSE16244 | GEO