数字农科院2.0

Expression Analysis of Chlorophyll-Degradation-Related Genes in Prunus persica L. Peel and the Functional Verification of Key Genes

文献类型： 外文期刊

作者： Xin Liu;Xiaoyu Zhang;Junren Meng;Ang Li;Wenyi Duan;Shihang Sun;Lei Pan;Wenfang Zeng;Zhiqiang Wang;Liang Niu

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关键词： chlorophyll degradation;fruit peel;PpPAO gene;PpSGR gene;Prunus persicaL

期刊名称： Plants

ISSN： 2223-7747

年卷期： 2025 年 14 卷 3 期

页码：

收录情况： SCIE（2025版）

摘要： With the evolution of consumer purchasing power and consumption concepts, external attributes such as fruit size, color, and peel smoothness have emerged as pivotal determinants influencing purchasing preferences; among these, the background color of the fruit peel exerts a considerable impact on fruit esthetics. The background color of fruit peel is predominantly influenced by the chlorophyll content. Consequently, examining the degradation patterns of chlorophyll in Prunus persica L. peel holds significant importance for cultivating varieties with a cleaner peel background color. In this study, Prunus persica L. CP14 and 20–29 were selected as experimental materials to evaluate the peel color variation and chlorophyll content during fruit development. Samples collected from three developmental stages of CP14 and 20–29 underwent transcriptome sequencing. Kyoto Encyclopedia of Genes and Genomes enrichment analysis identified chlorophyll-degradation-related genes within the purine metabolism pathway. Quantitative polymerase chain reaction analysis of chlorophyll degradation gene expression pinpointed PpPAO and PpSGR as likely key genes involved in chlorophyll degradation in Prunus persica L. Transient transformation assays in Nicotiana benthamiana leaves further substantiated that PpPAO and PpSGR markedly reduce chlorophyll levels. Yeast two-hybrid experiments also demonstrated an interaction between PpPAO and PpSGR.

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