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Multiomics analysis provides new insights into the regulatory mechanism of carotenoid biosynthesis in yellow peach peel

引用

Molecular Horticulture 2023年第1期3卷 81-97页

作者： Jiarui Zheng Xiaoyan Yang Jiabao Ye Dongxue Su Lina Wang Yongling Liao Weiwei Zhang Qijian Wang Qiangwen Chen Feng Xu College of Horticulture and Gardening Yangtze UniversityJingzhou 434025China School of Biology and Agriculture Shaoguan UniversityShaoguan 512005China Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region Shaoguan UniversityShaoguan 512005China

Carotenoids,as natural tetraterpenes,play a pivotal role in the yellow coloration of peaches and contribute to human dietary *** a relatively clear understanding of the carotenoid biosynthesis pathway,the regulatory mechanism of miRNAs involved in carotenoid synthesis in yellow peaches remain poorly *** study investigated a total of 14 carotenoids and 40 xanthophyll lipids,including six differentially accumulated carotenoids:violaxanthin,neoxanthin,lutein,zeaxanthin,cryptoxanthin,and(E/Z)-*** integrated analysis of RNA-seq,miRNA-seq and degradome sequencing revealed that miRNAs could modulate structural genes such as PSY2,CRTISO,ZDS1,CHYB,VDE,ZEP,NCED1,NCED3 and the transcription factors NAC,ARF,WRKY,MYB,and bZIP,thereby participating in carotenoid biosynthesis and *** authenticity of miRNAs and target gene was corroborated through quantitative real-time ***,through weighted gene coexpression network analysis and a phylogenetic evolutionary study,coexpressed genes and MYB transcription factors potentially implicated in carotenoid synthesis were *** results of transient expression experiments indicated that mdm-miR858 inhibited the expression of PpMYB9 through targeted *** upon these findings,a regulatory network governing miRNA-mediated carotenoid synthesis was *** summary,this study comprehensively identified miRNAs engaged in carotenoid biosynthesis and their putative target genes,thus enhancing the understanding of carotenoid accumulation and regulatory mechanism in yellow peach peel and expanding the gene regulatory network of carotenoid synthesis.

关键词： yellow peach peel Carotenoid miRNA MYB Degradome

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