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Transcriptomic analysis reveals genes releated to pistil abortion in Prunus sibirica

ABSTRACT: Transcriptomic analysis reveals genes releated to pistil abortion in Prunus sibirica

PROVIDER: PRJNA793878 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR17413415_1.fastq.gz	Fastqsanger.gz
	SRR17413415_2.fastq.gz	Fastqsanger.gz
	SRR17413416_1.fastq.gz	Fastqsanger.gz
	SRR17413416_2.fastq.gz	Fastqsanger.gz
	SRR17413417_1.fastq.gz	Fastqsanger.gz

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Transcriptomic analysis reveals genes releated to pistil abortion in Prunus sibirica

Project description:Pistil development is an important developmental process that directly affects the yield of Prunus sibirica. Through transcriptome sequencing analysis of clones with abortive pistil (No. 595) and normal pistil (No. 28) of Prunus sibirica, a total of 1950 significantly differentially expressed genes were obtained, among which 1000 genes were up-regulated and 950 genes were down-regulated. The results provide a theoretical basis for further investigation of the formation mechanism of pistil abortion.

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Project description:Flower development is a key stage in the life cycle of fruit trees and its proper development is considered its reproductive success. Pistil abortion is a widely distributed phenomenon in fruit plants and its mechanism in Japanese apricot is quite unclear. The present study was carried out to get a deep insight about the regulatory mechanism of pistil abortion in Japanese apricot using transcriptomic approach. A large number of DEGs (24,683) were identified in normal (N) and abortive pistil stages i.e. style browning (STYB), stigma browning (STIB) and ovary browning (OVB). Pair-wise comparison analysis was performed as N vs STYB, N vs STIB, N vs OVB and STIB vs OVB, and produced 9592, 8691, 8660 and 8103 transcripts, respectively. The Gene Ontology (GO) showed that different metabolic processes, plant hormones, flower development and photosystem related genes were involved in pistil abortion. The pathway analysis revealed that plant hormones signal transduction and circadian rhythm pathways were found significantly enriched. Furthermore, transcription factors such as MYB, MADS-box and NAC family remained highly expressed. Maximum number of the genes were grouped to cluster 11, and were highly expressed at OVB stage, suggesting that this stage might be critical for pistil abortion. This study provides an alternatives to be consider for further studies and understanding of pistil abortion processes in Japanese apricot, and provide a reference related to this issue for other deciduous fruit crops.

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Project description:In Prunus sibirica, the phenomenon of pistil abortion is very common and seriously affects its fruit quality and yield; however, the molecular mechanisms of pistil abortion remains unclear. In this study, we identified differentially expressed genes (DEGs) and pathways associated with pistil abortion using transcriptome sequencing. After comparative analysis, a total of 1,950 DEGs were identified, of which 1,000 were upregulated, and 950 were downregulated. Gene Ontology (GO) functional enrichment analysis of DEGs showed that metabolic process, cellular process, single-organism process, membrane, membrane part, cell, binding, catalytic activity, and transporter activity contained the largest number of DEGs. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis showed that the plant-pathogen interaction, starch and sucrose metabolism, and plant hormone signal transduction pathways contained the largest number of DEGs. The NAC, bHLH, and B3 transcription factor families contained the largest number of DEGs. qRT-PCR detection confirmed that the gene expression levels were consistent with the transcriptome sequencing results. This study provides a theoretical basis and scientific basis for further research on the molecular mechanisms of P. sibirica pistil abortion.

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