Unveiling the genetic basis of floral scent formation in roses using weighted gene co-expression and protein-protein interaction network analyses

文献类型： 外文期刊

第一作者： Xu, Chan

作者： Xu, Chan;Xie, Qiaoli;Hu, Zongli;Chen, Guoping;Xu, Chan;Chen, Yuan;Guo, Hang;Tian, Shibing

作者机构：

关键词： Rosa; Floral scent; WGCNA; PPI; Hub gene

期刊名称：SCIENTIFIC REPORTS （ 影响因子：3.9； 五年影响因子：4.3 ）

ISSN： 2045-2322

年卷期： 2025 年 15 卷 1 期

页码：

收录情况： SCI

摘要： Rosa species hold considerable economic and medicinal importance, used in traditional medicine, essential oils, and landscaping. However, the mechanisms of floral scent formation in roses are not well understood, hindering genetic improvement. To bridge this gap, we conducted a combined transcriptome and metabolome analysis, identifying nine key fragrance compounds. Using Weighted Gene Co-expression Network Analysis (WGCNA), we linked 574 genes to these compounds. From these, we identified candidate genes through differential expression, functional annotations, and protein-protein interaction (PPI) networks. We predicted candidate genes, NUDIX1, NUDIX2, GERD, AFS1, AFS2, CYP82G1, HMG1, NCED2, CCD7, PSY, ICMEL2, MAD1, and MAD2 that might terpenoid-related genes, as well as potential benzenoid/phenylpropanoid-related candidate genes, DET2, DET3, ICS2, PAL1, UGT74B1, MYB330, GST, CAD1, HST, PCBER1, LAC15, CSE, PER25, PER47, PER63, FBA, LNK2, PRE1, and PRE6. Additionally, three function-unknown genes, LOC112167529, LOC112174760, and LOC112183447, were predicted as candidate genes potentially involved in the formation of floral scent.

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