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ABSTRACT: Transcriptome analysis of Litchi chinensis pericarp during colour development in response to plant growth regulators

PROVIDER: PRJNA1167260 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR30907864_1.fastq.gz	Fastqsanger.gz
	SRR30907864_2.fastq.gz	Fastqsanger.gz
	SRR30907865_1.fastq.gz	Fastqsanger.gz
	SRR30907865_2.fastq.gz	Fastqsanger.gz
	SRR30907866_1.fastq.gz	Fastqsanger.gz

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MicroRNAs and targets in senescent fruit of litchi during ambient storage and post cold storage shelf-life.

Project description:Background: Litchi has high commercial value for its bright color and rich nutrients. However, it deteriorates with the pericarp turning brown within 1-2 days after harvest. The factors that mediate litchi fruit senescence are complicated. MicroRNAs act as negative regulators involving in almost every physiological process. To understand the mechanism of litchi fruit senescence and pericarp browning from miRNA level, five small RNA libraries and a degradome library from the pericarp of litchi fruit stored at ambient and post cold shelf-life were sequenced. Results: By aligning the sRNA reads onto litchi unigene assembly, 296 miRNAs belonging to 49 known miRNA families were first identified from litchi. In addition, eleven litchi-specific miRNAs were identified. Among these, 167 known miRNAs were identified to cleave 197 targets, and three litchi-specific miRNAs were found to have five targets. Through combined analysis of stem-loop quantitative real-time polymerase chain reaction (qRT-PCR) and transcriptome profiling, 14 miRNA-target pairs were found to be actively involved in litchi fruit senescence-related processes, including energy regulation, anthocyanin metabolism, hormone signaling, and pathogen-infection defense. Conclusions: A network of miRNA-target that regulates litchi fruit senescence has been proposed, revealing the miRNA-mediated regulation in senescent litchi fruit. This will aid to develop new strategies to postpone the senescence of litchi fruit and other horticultural products.

2017-02-13 | GSE63658 | GEO

Coupling of microRNA-directed phasiRNA generation with alternative splicing in small RNA-mediated gene silencing

Project description:Purpose:We aimed to characterize genome-widely the miRNA population and phasiRNA-generating genes/loci in litchi (Litchi chinensis). Multiple high throughput sequencing strategies, including sRNA sequencing, parallel analysis of RNA ends (PARE) sequencing, and strand-specific RNA-seq, were applied in combination with thorough bioinformatics analyses using a variety of computational methods.

2018-12-20 | GSE98698 | GEO

Ploidy-specific transcriptomes shed light on the heterogeneous identity and metabolism of developing pericarp cells

Project description:Endoreduplication, during which cells increase their DNA content through successive rounds of full genome replication without cell division, is the major source of endopolyploidy in higher plants. Endoreduplication plays pivotal roles in plant growth and development and is associated with the activation of specific transcriptional programs that are characteristic to each cell type, thereby defining their identity. In plants, endoreduplication is found in numerous organs and cell types and especially in agronomically valuable ones, such as the fleshy fruit (pericarp) of tomato presenting high ploidy levels. We used the tomato pericarp tissue as a model system to explore the transcriptomes associated with endoreduplication progression during fruit growth. We confirmed that expression globally scales with ploidy level and identified sets of genes differentially expressed when comparing ploidy levels at a specific developmental stage. We found that non-endoreduplicated cells are defined by cell division state and cuticle synthesis while endoreduplicated cells are mainly defined by their metabolic activity changing rapidly over time. By combining this dataset with publicly available spatiotemporal pericarp expression data, we proposed a map describing the distribution of ploidy levels within the pericarp. These transcriptome-based predictions were validated by quantifying ploidy levels within the pericarp tissue. This in situ ploidy quantification revealed the dynamic progression of endoreduplication and its cell layer specificity during early fruit development. In summary, the study sheds light on the complex relationship between endoreduplication, cell differentiation, and gene expression patterns in the tomato pericarp.

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Project description:The mechanism of biochemical, transcriptome, and metabolome regulatesby the plant growth regulators on the development of Litchi chinensis inflorescence under low-temperature

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Project description:Transciptome analysis of litchi pericarp during postharvest storage

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Project description:Litchi pericarp transcriptome sequencing

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Project description:Litchi pericarp and aril transcriptome

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Project description:transcriptome analysis of litchi pericarp

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Identification of MYB/bHLH proteins required for tissue-specific anthocyanin biosynthesis in inner pericarp of red-centered Actinidia chinensis cv. Hongyang

Project description:In the present study, we employed the high-throughput sequencing technology to profile miRNAs in the inner and outer pericarp of Actinidia chinensis cv. Hongyang. After sequencing and cleaning, the numbers of clean reads generated from these four libraries were 18,203,332, 9,356,430, 11,006,231 and 11,314,375, respectively. Approximately 93.62%, 93.67%, 92.75% and 93.28% clean reads were respectively mapped to the kiwifruit genome with perfect matches. Subsequently, differentially expressed genes were compared between the inner and outer pericarps. Significant differences in both up- and down-regulated genes were identified in inner and outer percarps by comparing expression levels. The results showed that there were significantly 450 up-regulated and 416 down-regulated DEGs in inner pericarp as compared to the outer pericarp.

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Project description:RNA-seq data of the pericarp of nine different varieties of Litchi chinensis

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