Integration of Metabolomics and Transcriptomics to Explore Dynamic Alterations in Fruit Color and Quality in 'Comte de Paris' Pineapples during Ripening Processes
文献类型： 外文期刊
作者： Song, Kanghua 1 ; Zhang, Xiumei 1 ; Liu, Jiameng 2 ; Yao, Quansheng 1 ; Li, Yixing 3 ; Hou, Xiaowan 1 ; Liu, Shenghui 1 ; Qiu, Xunxia 2 ; Yang, Yue 1 ; Chen, Li 1 ; Hong, Keqian 1 ; Lin, Lijing 2 ;
作者机构： 1.Chinese Acad Trop Agr Sci, South Subtrop Crop Res Inst, Key Lab Postharvest Physiol & Technol Trop Hort Pr, Zhanjiang 524091, Peoples R China
2.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Hainan Key Lab Storage & Proc Fruits & Vegetables, Zhanjiang 524001, Peoples R China
3.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Peoples R China
关键词： pineapple; ripening; yellowing; fruit quality; metabolomics; transcriptomics
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）
ISSN： 1661-6596
年卷期： 2023 年 24 卷 22 期
页码：
收录情况： SCI
摘要： Pineapple color yellowing and quality promotion gradually manifest as pineapple fruit ripening progresses. To understand the molecular mechanism underlying yellowing in pineapples during ripening, coupled with alterations in fruit quality, comprehensive metabolome and transcriptome investigations were carried out. These investigations were conducted using pulp samples collected at three distinct stages of maturity: young fruit (YF), mature fruit (MF), and fully mature fruit (FMF). This study revealed a noteworthy increase in the levels of total phenols and flavones, coupled with a concurrent decline in lignin and total acid contents as the fruit transitioned from YF to FMF. Furthermore, the analysis yielded 167 differentially accumulated metabolites (DAMs) and 2194 differentially expressed genes (DEGs). Integration analysis based on DAMs and DEGs revealed that the biosynthesis of plant secondary metabolites, particularly the flavonol, flavonoid, and phenypropanoid pathways, plays a pivotal role in fruit yellowing. Additionally, RNA-seq analysis showed that structural genes, such as FLS, FNS, F3H, DFR, ANR, and GST, in the flavonoid biosynthetic pathway were upregulated, whereas the COMT, CCR, and CAD genes involved in lignin metabolism were downregulated as fruit ripening progressed. APX as well as PPO, and ACO genes related to the organic acid accumulations were upregulated and downregulated, respectively. Importantly, a comprehensive regulatory network encompassing genes that contribute to the metabolism of flavones, flavonols, lignin, and organic acids was proposed. This network sheds light on the intricate processes that underlie fruit yellowing and quality alterations. These findings enhance our understanding of the regulatory pathways governing pineapple ripening and offer valuable scientific insight into the molecular breeding of pineapples.
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