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ABSTRACT: The different tissues of FudingDabaicha tea plant

PROVIDER: PRJNA680379 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13123215.fastq.gz	Fastqsanger.gz
	SRR13123216.fastq.gz	Fastqsanger.gz
	SRR13123217.fastq.gz	Fastqsanger.gz
	SRR13123218.fastq.gz	Fastqsanger.gz
	SRR13123219.fastq.gz	Fastqsanger.gz

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Tea(Camellia sinensis), Fresh tea leaves, Spring tea shoot, Bruker tims TOF Pro2 Mass spectrometer，

Project description:In this study, a unique tea cultivar ‘Anxi kucha’ was discovered for the first time, which is rich in both secondary metabolites. In the targeted data, theacrine (17.44 mg/g) was detected only in the ‘Anxi kucha’ tea plant in the test materials. The content of EGCG3"Me in ‘Anxi kucha’ (11.25mg/g), ‘Tieguanyin’ (5.32mg/g) and ‘Fudingdabaicha’ (0.93mg/g) showed high, medium and low changes. Through proteomics and transcriptomics, it was identified that the key pathways for the synthesis of theacrine and EGCG3"Me were the purine metabolism pathway and the flavonoid biosynthesis pathway, respectively. Combined proteome-transcriptome-metabolome analysis showed that SAMS3, APRT1, IMPDH, and TCS1 were the main enzymes promoting theacrine synthesis; CHI1, CHI2, FLS2 and LAR1 were the main enzymes that promote the synthesis of EGCG3"Me. The results of transcription factor analysis showed that MYB4 and bHLH74 had positive regulatory effects on the synthesis of theacrine and EGCG3"Me. Theacrine and EGCG3"Me are both bitter compounds. This study provides a valuable material rich in theacrine and EGCG3"Me, which provides a material basis for further development and utilization in the field of tea health food and a theoretical basis for studying the functional components of tea.

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Project description:transcriptome of different tea tissues

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Project description:Next-generation sequencing (NGS) was performed to identify genes changed in tea plant cultivar Zhongcha 108 upon Colletotrichum camelliae infection. The goal of the work is to find interesting genes involved in tea plant in response to fungi infection. The object is to reveal the molecular mechanism of tea plant defense.

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Project description:Solexa sequencing technology was used to perform high throughput sequencing of the small RNA library from the cold treatment of tea leaves. Subsequently, aligning these sequencing date with plant known miRNAs, we characterized 112 C. sinensis conserved miRNAs. In addition, 215 potential candidate miRNAs were found; among them, 131 candidates with star sequence were chosen as novel miRNAs. There are both congruously and differently regulated miRNAs, and line-specific miRNAs were identified by microarray-based hybridization in response to cold stress. The miRNA chip included 3228 miRNA probes corresponding to miRNA transcripts listed in Sanger miRBase release 19.0 and 283 novel miRNAs probes founding in tea plant. In the study presented here, two tea plant cultivars, ‘Yingshuang’ (YS, a cold-tolerant tea plant cultivar) and ‘Baiye 1’ (BY, a cold-sensitive tea plant cultivar), were kept at 4°C for 4,12, 24 h, respectively, and 28°C for as control. These samples were used to acquire expression profiles of a total of 3,511 unique genes, leading to the successful construction of supervised

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Project description:Anthracnose disease is caused by Colletotrichum gloeosporioides, and is common in leaves of the tea plant Camellia sinensis. MicroRNAs (miRNAs) have been known as key modulators of gene expression in defense responses; however, the role of miRNAs in tea plant during defensive responses to C. gloeosporioides remains unexplored. Six miRNA sequencing data sets and two degradome data sets were generated from C. gloeosporioides-inoculated and control tea leaves. A total of 485 conserved and 761 novel miRNAs were identified. Of those, 239 known and 369 novel miRNAs exhibited significantly differential expression under C. gloeosporioides stress. 1134 and 596 mRNAs were identified as targets of 389 and 299 novel and conserved miRNAs by degradome analysis, respectively. The expression levels of twelve miRNAs and their targets were validated by quantitative real-time PCR. The predicted targets of five interesting miRNAs were further validated through 5'RLM-RACE. Furthermore, Gene Ontology and metabolism pathway analysis revealed that most of the target genes were involved in translation, carbohydrate metabolism and signal transduction pathways. This study enriches the resources of defense-responsive miRNAs and their targets in C. sinensis, and thus, provides novel insights into the miRNA-mediated regulatory mechanisms underlying immunity responses to biotic stress in tea plant.

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