Metabolomic and transcriptomic analyses jointly reveal the mechanism underlying the reddening of Chimonanthus praecox stamens
文献类型： 外文期刊
作者： Liu, Bin 1 ; Wu, Huafeng 1 ; Cao, Yinzhu 1 ; Ma, Guanpeng 1 ; Zheng, Xiaowen 1 ; Zhu, Haoxiang 3 ; Song, Xingrong 4 ; Sui, Shunzhao 1 ;
作者机构： 1.Southwest Univ, Coll Hort & Landscape Architecture, Key Lab Agr Biosafety & Green Prod Upper Yangtze R, Chongqing Engn Res Ctr Floriculture,Minist Educ, Chongqing, Peoples R China
2.Guizhou Acad Agr Sci, Inst Hort, Guiyang, Guizhou, Peoples R China
3.Southwest Univ, Coll Hort & Landscape Architecture, Chongqing, Peoples R China
4.Sichuan Acad Agr Sci, Garden & Flower Res Ctr, Hort Res Inst, Chengdu, Sichuan, Peoples R China
关键词：
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：4.8； 五年影响因子：5.7 ）
ISSN： 1664-462X
年卷期： 2024 年 15 卷
页码：
收录情况： SCI
摘要： Introduction Flower characteristics are crucial ornamental and reproductive traits in Chimonanthus praecox. Over its long cultivation history, variations have been observed in the floral organs, primarily in the petals, with limited reports on stamen traits. Stamen variation, integral to the mating system, can enhance the plant's ornamental value and directly impact its reproductive success.Methods This study is the first to report the phenomenon of red coloration in C. praecox stamens. Using UPLC-MS/MS, we analyzed the types and quantities of major metabolites in stamens of different colors.Results Our results indicated that the red coloration was primarily due to the accumulation 42 on of high levels of anthocyanins, specifically cyanidin 3-O-rutinoside and cyanidin 3-O-glucoside. Transcriptomic sequencing identified 63 differentially expressed genes (DEGs) related to the anthocyanin biosynthetic pathway, most showing peak expression during the bud stage. The results of the metabolite analysis and transcriptomic sequencing were similar to those of previous studies on petal reddening, suggesting a close relationship between the mechanisms of stamen and petal reddening.Discussion This study elucidated the mechanism of stamen reddening in C. praecox, expanding the species' genetic resources and offering insights into color changes across floral tissue..
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