Multiple R2R3-MYB Transcription Factors Involved in the Regulation of Anthocyanin Accumulation in Peach Flower

doi:10.3389/fpls.2016.01557

CORC > 武汉植物园 > 中国科学院武汉植物园

	Multiple R2R3-MYB Transcription Factors Involved in the Regulation of Anthocyanin Accumulation in Peach Flower
	Zhou, Hui 1; Peng, Qian 1,2; Zhao, Jianbo 3; Owiti, Albert 1,2; Ren, Fei 3; Liao, Liao 1,4; Wang, Lu 1,4; Deng, Xianbao 1,4; Jiang, Quan 3; Han, Yuepeng 1,4
刊名	FRONTIERS IN PLANT SCIENCE
	2016-10-21
卷号	7 页码:11
关键词	peach anthocyanin proanthocyanin flower coloration R2R3-MYB
ISSN号	1664-462X
DOI	10.3389/fpls.2016.01557
英文摘要	Anthocyanin accumulation is responsible for flower coloration in peach. Here, we report the identification and functional characterization of eight flavonoid-related R2R3-MYB transcription factors, designated PpMYB10.2, PpMYB9, PpMYBPA1, Peace, PpMYB17, PpMYB18, PpMYB19, and PpMYB20, respectively, in peach flower transcriptome. PpMYB10.2 and PpMYB9 are able to activate transcription of anthocyanin biosynthetic genes, whilst PpMYBPA1 and Peace have a strong activation on the promoters of proanthocyanin (PA) biosynthetic genes. PpMYB1720 show a strong repressive effect on transcription of flavonoid pathway genes such as dihydroflavonol 4-reductase. These results indicate that anthocyanin accumulation in peach flower is coordinately regulated by a set of R2R3-MYB genes. In addition, PpMYB9 and PpMYB10.2 are closely related but separated into two groups, designated MYB9 and MYB10, respectively. PpMYB9 shows a strong activation on the PpUGT78A2 promoter, but with no effect on the promoter of PpUGT78B (commonly called PpUFGT in previous studies). In contrast, PpMYB10.2 is able to activate the PpUFGT promoter, but not for the PpUGT78A2 promoter. Unlike the MYB 10 gene that is universally present in plants, the MYB9 gene is lost in most dicot species. Therefore, the PpMYB9 gene represents a novel group of anthocyanin-related MYB activators, which may have diverged in function from the MYB10 genes. Our study will aid in understanding the complex mechanism regulating floral pigmentation in peach and functional divergence of the R2R3-MYB gene family in plants.
资助项目	National Natural Science Foundation of China[31601740] ; National Natural Science Foundation of China[31672134] ; Overseas Construction Plan for Science and Education Base, China-Africa Center for Research and Education, Chinese Academy of Sciences[SAJC201327]
WOS研究方向	Plant Sciences
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000385889300002
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/19]
专题	中国科学院武汉植物园
通讯作者	Han, Yuepeng
作者单位	1.Chinese Acad Sci, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan Bot Garden, Wuhan, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Beijing Acad Agr & Forestry Sci, Inst Forestry & Pomol, Beijing, Peoples R China 4.Chinese Acad Sci, Sinoafrican Joint Res Ctr, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Hui,Peng, Qian,Zhao, Jianbo,et al. Multiple R2R3-MYB Transcription Factors Involved in the Regulation of Anthocyanin Accumulation in Peach Flower[J]. FRONTIERS IN PLANT SCIENCE,2016,7:11.
APA	Zhou, Hui.,Peng, Qian.,Zhao, Jianbo.,Owiti, Albert.,Ren, Fei.,...&Han, Yuepeng.(2016).Multiple R2R3-MYB Transcription Factors Involved in the Regulation of Anthocyanin Accumulation in Peach Flower.FRONTIERS IN PLANT SCIENCE,7,11.
MLA	Zhou, Hui,et al."Multiple R2R3-MYB Transcription Factors Involved in the Regulation of Anthocyanin Accumulation in Peach Flower".FRONTIERS IN PLANT SCIENCE 7(2016):11.