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Transcriptome analysis reveals mechanism of early ripening in Kyoho grape with hydrogen peroxide treatment

BACKGROUND: In a previous study, the early ripening of Kyoho grape following H(2)O(2) treatment was explored at the physiological level, but the mechanism by which H(2)O(2) promotes ripening at the molecular level is unclear. To reveal the molecular mechanism, RNA-sequencing analysis was conducted o...

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Detalles Bibliográficos
Autores principales: Guo, Da-Long, Wang, Zhen-Guang, Pei, Mao-Song, Guo, Li-Li, Yu, Yi-He
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7657363/
https://www.ncbi.nlm.nih.gov/pubmed/33176674
http://dx.doi.org/10.1186/s12864-020-07180-y
Descripción
Sumario:BACKGROUND: In a previous study, the early ripening of Kyoho grape following H(2)O(2) treatment was explored at the physiological level, but the mechanism by which H(2)O(2) promotes ripening at the molecular level is unclear. To reveal the molecular mechanism, RNA-sequencing analysis was conducted on the different developmental stages of Kyoho berry treated with H(2)O(2). RESULTS: In the comparison of treatment and control groups, 406 genes were up-regulated and 683 were down-regulated. Time course sequencing (TCseq) analysis showed that the expression patterns of most of the genes were similar between the treatment and control, except for some genes related to chlorophyll binding and photosynthesis. Differential expression analysis and the weighted gene co-expression network were used to screen significantly differentially expressed genes and hub genes associated with oxidative stress (heat shock protein, HSP), cell wall deacetylation (GDSL esterase/lipase, GDSL), cell wall degradation (xyloglucan endotransglucosylase/ hydrolase, XTH), and photosynthesis (chlorophyll a-b binding protein, CAB1). Gene expression was verified with RT-qPCR, and the results were largely consistent with those of RNA sequencing. CONCLUSIONS: The RNA-sequencing analysis indicated that H(2)O(2) treatment promoted the early ripening of Kyoho berry by affecting the expression levels of HSP, GDSL, XTH, and CAB1 and- photosynthesis- pathways. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12864-020-07180-y.