Brassica napus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA261883 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:High temperature stress results in yield loss and alterations to seed composition during seed filling in oilseed rape (Brassica napus). However, the mechanism underlying this heat response is poorly understood. In this study, we employed a microarray analysis with silique walls and seeds from the developing siliques (20 days after flowering) of Brassica napus that had undergone heat stress.
2015-01-05 | GSE57697 | GEO
Project description:High temperature stress results in yield loss and alterations to seed composition during seed filling in oilseed rape (Brassica napus). However, the mechanism underlying this heat response is poorly understood. In this study, we employed a microarray analysis with silique walls and seeds from the developing siliques (20 days after flowering) of Brassica napus that had undergone heat stress. Two-condition experiment, control vs heat stress, 2 time points
2015-01-05 | E-GEOD-57697 | biostudies-arrayexpress
Project description:Understanding the regulation of lipid metabolism is vital for genetic engineering of Brassica napus (B. napus) to increase oil yield or modify oil composition. We report the application of Illumina Hiseq 2000 for transcriptome profiling of seeds of B. napus at different developmental stages, which may uncover the dynamic changes in lipid metabolism and reveal key genes involved in lipid biosynthesis and degradation. Total RNA from developing seeds at 2, 4, 6, and 8 weeks after pollination (WAP) were isolated and sequenced separately. The gene expression levels of all samples were quantified and normalized by the DESeq normalization. We found that the biosynthesis of fatty acids is a dominant cellular process from 2 to 6 WAP, while the degradation mainly happens after 6 WAP. Two genes, encoding for acetyl-CoA carboxylase and acyl-ACP desaturase, might be critical for fatty acid biosynthesis in oil rape seeds. This study provides insight into the mechanism underlying lipid metabolism and reveals candidate genes that are worthy of further investigation for their values in genetic engineering of B. napus.
2016-02-06 | GSE77637 | GEO
Project description:Understanding the regulation of lipid metabolism is vital for genetic engineering of Brassica napus (B. napus) to increase oil yield or modify oil composition. We report the application of Illumina Hiseq 2000 for transcriptome profiling of seeds of B. napus at different developmental stages, which may uncover the dynamic changes in lipid metabolism and reveal key genes involved in lipid biosynthesis and degradation. Total RNA from developing seeds at 2, 4, 6, and 8 weeks after pollination (WAP) were isolated and sequenced separately. The gene expression levels of all samples were quantified and normalized by the DESeq normalization. We found that the biosynthesis of fatty acids is a dominant cellular process from 2 to 6 WAP, while the degradation mainly happens after 6 WAP. Two genes, encoding for acetyl-CoA carboxylase and acyl-ACP desaturase, might be critical for fatty acid biosynthesis in oil rape seeds. This study provides insight into the mechanism underlying lipid metabolism and reveals candidate genes that are worthy of further investigation for their values in genetic engineering of B. napus. Whole Transcriptome profiling of developing Brassica napus seeds at 2, 4, 6, 8 WAP by RNA sequencing using Illumina HiSeq 2000.
2016-02-06 | E-GEOD-77637 | biostudies-arrayexpress
Project description:In this project, we developed a data resource based on the German winter oilseed rape cultivar Express 617. Plants were grown under controlled environmental conditions in the container-based system of the IPK PhenoSphere in 2020-2021. The dataset comprises gene expression data generated by RNA sequencing of different seed tissues across five stages of seed development, spanning early embryo/seed development, seed filling, and seed maturation. In the first stage (pre-storage), whole seeds were analysed. In the later four stages, developing seeds were dissected into four organs/tissues (SC = seed coat, IC = inner cotyledon, OC = outer cotyledon, and RA = radicle). This dataset (mRNA sequencing) is part of a series of multi-omics data generated in the frame of the AVATARS project.
2025-03-19 | E-MTAB-14603 | biostudies-arrayexpress
Project description:Transcriptomic study of the impact of osmopriming on rape seeds (Brassica napus L.; cv 'Libomir') during priming process and after germination. The assays were replicated twice on two independent priming and germination experiments. Seeds were osmoprimed in PEG solution (-1.2 MPa osmotic potential) during 7 days, dried to initial moisture content and then germinated for 7 hours on water. The analysis during different phases of priming procedure (soaking and drying), after whole osmopriming process and germination were done.
2014-11-23 | GSE61702 | GEO
Project description:Seeds of the German winter-type oilseed rape cultivar Express 617 were sampled and analysed at five key stages of seed development. Express 617 is a high oil yield cultivar with double-zero quality (low erucic acid and low glucosinolate content), which has been widely used in breeding programs and as parent for the creation of genetic mapping populations. Plants were grown under controlled, field-like conditions in the container-based system of the IPK PhenoSphere (Heuermann et al., 2023). The weather regime of the cultivation (2021/2021) was based on twelve years of hourly records of the weather station in Gatersleben and was designed to be as representative as possible of a typical growth season. Avoiding stressful weather extremes, the cultivation regime was considered to be favourable for plant growth and seed formation. Siliques were sampled at five key stages of seed development, as outlined by Borisjuk et al. (2013), covering the development from the pre-storage stage to seed maturation. To provide spatial information, seeds were manually dissected into four organs/tissues: the seed coat (SC), the inner (IC) and outer cotyledon (OC), and the radicle (RA). Aliquots of the pooled materials were subjected to mRNA-Sequencing and spectrometry–based proteomic analyses. Samples were prepared via the SP3 protocol and peptides were analysed on a timsTOF Pro mass spectrometer.
2025-03-19 | PXD053532 | Pride
Project description:Transcriptomic study of the impact of osmopriming on rape seeds (Brassica napus L.; cv 'Libomir') during priming process and after germination. The assays were replicated twice on two independent priming and germination experiments. Seeds were osmoprimed in PEG solution (-1.2 MPa osmotic potential) during 7 days, dried to initial moisture content and then germinated for 7 hours on water. The analysis during different phases of priming procedure (soaking and drying), after whole osmopriming process and germination were done. 10 samples, four condition experiment; non dried primed seeds (Pnd) vs. dry unprimed seeds (UPd) (PEG soaking), non dried primed seeds (Pnd) vs dry primed seeds (Pd) (drying after soaking), dry primed seeds (Pd) vs. dry unprimed seeds (UPd) (full osmopriming process), primed seeds imbibed on water (P7h) vs unprimed seeds imbibed on water (UP7h) (germination after osmopriming). Biological replicates: 2 replicates for comparison PEG soaking, drying after soaking, full osmopriming process and germination after osmopriming.
2014-11-23 | E-GEOD-61702 | biostudies-arrayexpress
Project description:In most plants, germination begins with the reactivation of metabolism during water uptake by the desiccated seed. Notably, Pol II transcription is hypothesised not to be required for early germination, as seeds appear to initially rely on stored mRNAs produced during their maturation. Here, we show that efficient blocking of Pol II transcription completely stops germination in Arabidopsis seeds. Pol II activity is initiated early and is widespread, following expression and Pol II binding patterns established during seed drying. Our findings suggest that the earliest transcriptional phase relies on pre-existing protein factors. The transcriptional programme initiated during water uptake is robust across diverse imbibition conditions and in seeds matured at different temperatures, and is conserved in rapeseed (Brassica napus). Only after the successful completion of this initial phase and the passing of the translation-dependent checkpoint do seeds activate genes that lead to germination. Our results redefine the role of transcription in seed germination and highlight a conserved pattern of early transcriptional activation.
2026-07-24 | GSE297282 | GEO
Project description:mRNA expression profiling of the embryo, endosperm (micropylar, peripheral, chalazal), and seed coat (outer, inner, chalazal, chalazal proliferating tissue) of the developing Brassica napus seed. Tissues were isolated using laser microdissection (LMD) from Brassica napus seeds at the globular, heart, and mature green stages of seed development.
2024-07-15 | GSE271809 | GEO