Genome-wide identification and analysis of petal color related MYB transcription factor gene in Gerbera hybrida
文献类型： 外文期刊
作者： Kong, Desheng 1 ; Jiang, Tao 1 ; Zhao, Jing 1 ; Yang, Chunmei 1 ; Li, Shenchong 1 ; Shan, Qinli 1 ; Lu, Zhenhong 1 ; Wani, Muneeb Ahmad 4 ; Jin, Chunlian 1 ; Li, Fan 1 ;
作者机构： 1.Yunnan Acad Agr Sci, Floriculture Res Inst, Natl Engn Res Ctr Ornamental Hort, Key Lab Flower Breeding Yunnan Prov, Kunming 650205, Peoples R China
2.Yunnan Seed Lab, Kunming 650205, Peoples R China
3.Yunnan Univ, Sch Agr, Kunming 650504, Peoples R China
4.Sher Ekashmir Univ Agr Sci & Technol Kashmir, Fac Hort, Div Floriculture & Landscape Architecture, Kashmir 190025, India
关键词： MYBs; Gerbera hybrida; Bicolor flowers; Expression profile
期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：6.2； 五年影响因子：6.2 ）
ISSN： 0926-6690
年卷期： 2025 年 232 卷
页码：
收录情况： SCI
摘要： Gerbera hybrida features petals rich in anthocyanins, which are recognized as valuable sources of colorants, antioxidants, and natural coatings. The petals of the G.hybrida cultivar 'Hongyun' exhibit a distinct bi-color pattern, although the underlying mechanism remains unclear. Recent research has highlighted the crucial role of MYB transcription factors in anthocyanin biosynthesis and petal pigmentation. This study presents a comprehensive analysis of the G.hybrida MYB gene family, identifying a total of 319 GhMYB genes, which include 165 MYB-related genes, 147 R2R3-MYB genes, 6 3R-MYB genes, and 1 4R-MYB gene. We further examined the gene structure, frequency of conserved sites, collinear relationships, and predictions of cis-acting elements within the R2R3-MYB subfamily, which is closely associated with flower color regulation. Expression profiles of anthocyanin synthesis genes and R2R3-GhMYBs were constructed for the upper and lower layers of the petals of 'Hongyun' at various coloring stages. Notably, two genes, GhMYB114 and GhMYB24, exhibited significant differential expression levels and are believed to be responsible for the bi-color petal formation. Additionally, RTqPCR confirmed the expression patterns of these related genes. Our research establishes a solid foundation for the functional study of MYB genes, offering candidate genes for future investigations into the regulation of flower color distribution in G.hybrida.
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