Project description:This study presents transcriptome profiles of multiple tissues (root, stem, leaf, flower, and pod) from Vigna radiata var. sublobata, a wild relative of cultivated mung bean. RNA sequencing was performed using Illumina platform to investigate tissue-specific gene expression patterns. The data will facilitate understanding of gene regulation in different plant organs and provide resources for comparative genomics with cultivated Vigna radiata. Experimental design: Tissues were collected from mature plants grown under controlled conditions. Three biological replicates per tissue type. Libraries were prepared using poly-A selection and sequenced in paired-end mode (2x150 bp). This submission includes raw sequencing data (FASTQ files) for all samples.
Project description:Salinity is a major environmental constraint limiting crop productivity. Chromatin accessibility plays a crucial role in transcriptional regulation under stress conditions. In this study, we investigated genome-wide chromatin accessibility dynamics in mung bean (Vigna radiata cv. Weilv 9) leaves under salt stress using ATAC-seq. Two treatment groups were established: T1 (pre-conditioned with 100 mM NaCl for 24 h, recovered for 48 h, then re-exposed to 100 mM NaCl) and T2 (direct exposure to 100 mM NaCl without preconditioning). Seedlings were grown hydroponically in half-strength Murashige and Skoog medium under controlled environmental conditions. Nuclei were isolated from the first fully expanded true leaves at 0, 6, and 48 h after the onset of the final salt treatment, with three biological replicates per condition. Comparative ATAC-seq analysis revealed dynamic changes in chromatin accessibility associated with transcriptional reprogramming and stress memory. This dataset provides valuable insights into the epigenetic basis of salt tolerance and acclimation in legumes.
Project description:DNA methylation is an important epigenetic mechanism regulating gene expression and stress memory in plants. To investigate the role of DNA methylation in salt stress adaptation, we performed whole-genome bisulfite sequencing (WGBS) of mung bean (Vigna radiata cv. Weilv 9) leaves under two treatment regimes: T1 (pre-conditioned with 100 mM NaCl for 24 h, recovered for 48 h, then re-exposed to 100 mM NaCl) and T2 (direct exposure to 100 mM NaCl without preconditioning). Seedlings were grown hydroponically in half-strength Murashige and Skoog medium under controlled environmental conditions. Genomic DNA was extracted from the first fully expanded true leaves at 0, 6, and 48 h after the onset of the final salt treatment, with three biological replicates per condition. Bisulfite-converted DNA was sequenced to generate genome-wide methylation profiles. Comparative analysis revealed dynamic changes in CG, CHG, and CHH contexts, providing insights into the epigenetic basis of salt tolerance and stress priming in legumes.