DNA demethylation is involved in the regulation of temperature-dependent anthocyanin accumulation in peach.

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ID: 80070
2020
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Abstract
Anthocyanin biosynthesis is induced by low temperatures in a number of plants. However, in peach (cv. Zhonghuashoutao), anthocyanin accumulation was observed in fruit stored at 16°C but not at or below 12°C. Fruit stored at 16°C showed elevated transcript levels of genes encoding anthocyanin biosynthetic enzymes, the transport protein GST and key transcription factors. Higher transcript levels of PpPAL1/2, PpC4H, Pp4CL4/5/8, PpF3H, PpF3'H, PpDFR1/2/3 and PpANS, as well as transcription factor gene PpbHLH3, were associated with lower methylation levels in the promoter of these genes. The DNA methylation level was further highly correlated with the expression of the DNA methyltransferase genes and DNA demethylase genes. The application of DNA methylation inhibitor 5-azacytidine induced anthocyanin accumulation in peach flesh, further implicating a critical role of DNA demethylation in regulating anthocyanin accumulation in peach flesh. Our data reveals that temperature-dependent DNA demethylation is a key factor to the postharvest temperature-dependent anthocyanin accumulation in peach flesh.
Reference Key
zhu2020dnathe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Zhu, Yong-Chao;Zhang, Bo;Allan, Andrew C;Lin-Wang, Kui;Zhao, Yun;Wang, Ke;Chen, Kun-Song;Xu, Chang-Jie;
Journal The Plant journal : for cell and molecular biology
Year 2020
DOI
10.1111/tpj.14680
URL
Keywords
temperature dna methylation anthocyanin flesh peach (prunus persica)

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