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Paeonia suffruticosa

ABSTRACT: tree peony, native to China

PROVIDER: PRJNA162853 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10484891.fastq.gz	Fastqsanger.gz
	SRR10662632_1.fastq.gz	Fastqsanger.gz
	SRR10662632_2.fastq.gz	Fastqsanger.gz
	SRR10662633_1.fastq.gz	Fastqsanger.gz
	SRR10662633_2.fastq.gz	Fastqsanger.gz

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Paeonia suffruticosa

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Fatty acid composition of developing tree peony (Paeonia section Moutan DC.) seeds and transcriptome analysis during seed development

Project description:Tree peony (Paeonia ostii section Moutan DC.) is known for its excellent ornamental and medicinal values. In 2011, seeds from P. ostii have been identified as novel resource of alpha-linolenic acid (ALA) for seed oil production and development in China. However, the molecular mechanism on biosynthesis of unsaturated fatty acids in tree peony seeds remains unknown. Therefore, transcriptome data is needed to better understand the underlying mechanisms. In this study, lipids accumulation contents were measured using GC-MS methods across developing tree peony seeds, which exhibited an extraordinary ALA content (49.3%) in P. ostii mature seeds. Transcriptome analysis was performed using Illumina sequencing platform. A total of 144 million 100-bp paired-end reads were generated from six libraries, which identified 175,874 contigs. In the KEGG Orthology enrichment of differentially expressed genes, lipid metabolism pathways were highly represented categories. Using this data we identified 388 unigenes that may be involved in de novo fatty acid and triacylglycerol biosynthesis. In particular, three unigenes (SAD, FAD2 and FAD8) encoding fatty acid desaturase with high expression levels in the fast oil accumulation stage compared with the initial stage of seed development were identified.

2017-03-04 | E-MTAB-3377 | biostudies-arrayexpress

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Transcript profiling in Paoenia ostii during chilling induced endo-dormancy release

Project description:To better understanding the genetic and physiological changes behind the dormancy process in tree peony, we performed customized cDNA microarray to investigate gene expression profiling in tree peony ‘Feng Dan Bai’ buds during chilling induced dormancy release. Endo-dormant tree peony plants were exposed to 0-4°C from 5 November to 30 December 2009 in Qingdao, Shandong, China. Buds were collected after 0 d, 6 d, 12 d, 15 d, 18 d and 24 d chilling endured. DNA microarrays were customized using Agilent eArray 5.0 program, containing spots with 14,957 gene-specific 60-mer oligonucleotides representing 14,957 non abundant ESTs obtained from 454 sequencing normalized cDNA of tree peony buds during chilling duration (TSA, 65,217). Total 3,174 significantly differentially-expressed genes (P<0.05) were observed through endo-dormancy release, and the number of up-regulated (1,611) and that of down-regulated (1,563) was almost same. Expression of differentially-expressed genes associated with GA biosynthesis and signaling, cell growth and development was confirmed by quantitative RT-PCR, which displayed similar trends pattern in expression.

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Transcript profiling in Paoenia ostii during chilling induced endo-dormancy release

Project description:To better understanding the genetic and physiological changes behind the dormancy process in tree peony, we performed customized cDNA microarray to investigate gene expression profiling in tree peony M-bM-^@M-^XFeng Dan BaiM-bM-^@M-^Y buds during chilling induced dormancy release. Endo-dormant tree peony plants were exposed to 0-4M-BM-0C from 5 November to 30 December 2009 in Qingdao, Shandong, China. Buds were collected after 0 d, 6 d, 12 d, 15 d, 18 d and 24 d chilling endured. DNA microarrays were customized using Agilent eArray 5.0 program, containing spots with 14,957 gene-specific 60-mer oligonucleotides representing 14,957 non abundant ESTs obtained from 454 sequencing normalized cDNA of tree peony buds during chilling duration (TSA, 65,217). Total 3,174 significantly differentially-expressed genes (P<0.05) were observed through endo-dormancy release, and the number of up-regulated (1,611) and that of down-regulated (1,563) was almost same. Expression of differentially-expressed genes associated with GA biosynthesis and signaling, cell growth and development was confirmed by quantitative RT-PCR, which displayed similar trends pattern in expression. Transcript profiling of tree peony was measured during chilling (0-4M-BM-0C) induced dormancy release. Mixed buds, three buds for each individual, were collected after 0, 6, 12, 15, 18 (endo-dormancy release), 24 days (eco-dormancy) chilling requirement fulfilling. Three replications (3 plants/ replication) were harvested between November and December.

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Project description:High-throughput RNA sequencing were performed to identify a large number of mRNAs in developmental herbaceous peony seeds at different periods to provide useful information for elucidating the molecular mechanism of the lipid biosynthesis and fatty acid accumulation for herbaceous peony 'Hangshao'.

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Project description:UVB is one of the external stimuli posing a significant threat to the skin. Excessive exposure to UVB may trigger intracellular effects including inflammatory responses and oxidative stress, leading to severe skin issues. Peony seed oil is a nut oil unique to China, rich in unsaturated fatty acids, and reported to possess anti-inflammatory and antioxidant properties. Paeonia delavayi is a distinctive subspecies within the peony family, primarily distributed in southwestern China and high-altitude regions. This study aims to investigate the roles and underlying mechanisms of P. delavayi seed oil (PDSO) in protecting skin from UVB-induced damage. We found that treatment with PDSO effectively mitigated the adverse effects of UVB exposure on NHEK cells, including reduced viability and impaired migratory capacity. Additionally, PDSO significantly suppressed the upregulation of pro-inflammatory genes such as TNF, IL6, CXCL8 and PTGS2 in keratinocytes induced by UVB. Subsequent studies indicated that PDSO also alleviated UVB-induced oxidative stress and photoaging in NHEK cells, manifested by reducing ROS and MDA levels, upregulating antioxidant-related genes expression, and suppressing the expression of genes associated with cellular senescence. RNA-sequencing analysis and western blot assay revealed that PDSO exerts an inhibitory effect on the PI3K/Akt/mTOR pathway. We also found that PDSO suppressed the activation of the NF-κB pathway in UVB-irradiated NHEK cells. Thus, this study demonstrates that PDSO holds significant potential in protecting skin from UVB-induced damage and reveals that its mechanism of action involves the PI3K/Akt/mTOR and NF-κB signaling pathways.

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