Metabolite and gene expression analysis reveal the molecular mechanism for petal colour variation in six Centaurea cyanus cultivars

doi:10.1016/j.plaphy.2019.06.018

CORC > 植物研究所 > 中国科学院植物研究所 > 中科院北方资源植物重点实验室

	Metabolite and gene expression analysis reveal the molecular mechanism for petal colour variation in six Centaurea cyanus cultivars
	Deng, Chengyan 2; Li, Shanshan 1,3,5; Feng, Chengyong 1,3,5; Hong, Yan 2; Huang, He 2; Wang, Jiaying 2; Wang, Liangsheng 1,3,5; Dai, Silan 2
刊名	PLANT PHYSIOLOGY AND BIOCHEMISTRY
	2019
卷号	142 页码:22-33
关键词	Centaurea cyanus Petal colour Flavonoids Gene expression Biosynthetic pathway
ISSN号	0981-9428
DOI	10.1016/j.plaphy.2019.06.018
文献子类	Article
英文摘要	Centaurea cyanus is a popular garden plant native to Europe. Although their petals show abundant colour variations, the flavonoid profiling and the potential molecular mechanisms remain unclear. In the present study, we collected six cornflower cultivars with white, pink, red, blue, mauve and black petals. Ultra-performance liquid chromatography coupled with photodiode array and tandem mass spectrometry (UPLC-MS/MS) was used to investigate the comparative profiling of flavonoids both qualitatively and quantitatively. Ten anthocyanins, six flavones and two flavonols were separated and putatively identified. Except for white petals without any anthocyanins, both pink and red flowers contained pelargonidin derivatives, whereas blue, mauve and black petals accumulated cyanidins. The expression patterns of genes involved in the flavonoid biosynthesis were performed by real-time quantitative reverse transcription-PCR. The anthocyanin biosynthetic pathway in white petals was inhibited starting from flavanone 3-hydroxylase, resulting in the absence of anthocyanin accumulation. The open reading frame of flavonoid 3'-hydroxylase in pink and red petals was truncated; this led to loss of a haem binding site, a conserved motif in the cytochrome P450 family, and loss of conversion from dihydrokaempferol to dihydroquercetin. The significantly higher expression of structural genes corresponding to the hyper-accumulation of flavonoids in black petals may play an important role in black coloration. Remarkably, the mauve and blue petals accumulated the same cyanidin derivative but contained apigenin with different modifications on the 4' position, which may cause the coloration differences. The results obtained in this study will provide insights into the mechanisms of vivid colour diversities in cornflower.
学科主题	Plant Sciences
出版地	ISSY-LES-MOULINEAUX
WOS关键词	3-(6-SUCCINYL GLUCOSIDE)-5-GLUCOSIDE ; BLUE COLORATION ; ANTHOCYANIN ; FLOWERS ; PIGMENT ; IDENTIFICATION ; IONS ; ACID
WOS研究方向	Plant Sciences
语种	英语
出版者	ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
WOS记录号	WOS:000487569200004
资助机构	National Key Research and Development Program [2018YFD1000405]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/19443]
专题	中科院北方资源植物重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Beijing Bot Garden, Beijing 100093, Peoples R China 2.Beijing Forestry Univ, Beijing Lab Urban & Rural Ecol Environm, Natl Engn Res Ctr Floriculture, Beijing Key Lab Ornamental Plants Germplasm Innov, Beijing 100083, Peoples R China 3.Beijing Forestry Univ, Coll Landscape Architecture, Beijing 100083, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Deng, Chengyan,Li, Shanshan,Feng, Chengyong,et al. Metabolite and gene expression analysis reveal the molecular mechanism for petal colour variation in six Centaurea cyanus cultivars[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2019,142:22-33.
APA	Deng, Chengyan.,Li, Shanshan.,Feng, Chengyong.,Hong, Yan.,Huang, He.,...&Dai, Silan.(2019).Metabolite and gene expression analysis reveal the molecular mechanism for petal colour variation in six Centaurea cyanus cultivars.PLANT PHYSIOLOGY AND BIOCHEMISTRY,142,22-33.
MLA	Deng, Chengyan,et al."Metabolite and gene expression analysis reveal the molecular mechanism for petal colour variation in six Centaurea cyanus cultivars".PLANT PHYSIOLOGY AND BIOCHEMISTRY 142(2019):22-33.