Mechanisms underlying flower color variation in Asian species of Meconopsis: A preliminary phylogenetic analysis based on chloroplast DNA and anthocyanin biosynthesis genes

doi:10.1111/jse.12071

	Mechanisms underlying flower color variation in Asian species of Meconopsis: A preliminary phylogenetic analysis based on chloroplast DNA and anthocyanin biosynthesis genes
	Zhao, Chao ; Wang, Xiao-Quan; Yang, Fu-Sheng
	2014
发表期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN	1674-4918
卷号	52 期号:2 页码:125-133
摘要	The Qinghai-Tibet Plateau (QTP) harbors the highest species diversity of alpine plants in the world, with a spectacular diversity of flower colors. Among these QTP plants, the genus Meconopsis comprises more than 50 species, for which flower color is a key diagnostic character. However, the mechanisms underlying flower color variation have rarely been investigated. In the present study, we used three chloroplast (cp) DNA fragments and two anthocyanin biosynthesis genes (F3H and F3 ' H) for phylogenetic reconstruction of Meconopsis. We revealed the presence of three well-supported clades and/or subclades in the cpDNA and nuclear gene trees; further, flower color transition occurred in each lineage. The results of selection tests and preliminary expression analyses of the anthocyanin biosynthesis genes indicate that the pigment pathway leading to cyanidin is active in blue and red flowers of Meconopsis; further, a blue-red color shift is not attributable to an on/off switching of the anthocyanin biosynthetic pathway (ABP) branches. Together with the results of previous flower pigment analyses, our findings suggest that blue-red flower color transitions in Meconopsis are attributable to modification of cyanidin. Our molecular dating results indicate that the lineage diversification in Meconopsis is closely related to the QTP uplift; thus, it is likely that environmental changes arising from the QTP uplift have played important roles in driving the diversification of flavonoids, through which species of Meconopsis have adapted physiologically to diverse habitats.
关键词	F3 ' H F3H Qinghai-Tibet Plateau Meconopsis flower color variation phylogenetic analysis
学科领域	Plant Sciences
DOI	10.1111/jse.12071
收录类别	SCI
语种	英语
WOS关键词	QINGHAI-TIBETAN PLATEAU ; MALONYLATED ANTHOCYANIN ; QUATERNARY CLIMATE ; PINUS-DENSATA ; PLANT ; PAPAVERACEAE ; PHYLOGEOGRAPHY ; EVOLUTION ; BIOCHEMISTRY ; FLAVONOLS
WOS研究方向	Plant Sciences
WOS记录号	WOS:000332064700001
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1759-6831
资助机构	National Natural Science Foundation of China [30730010, 31270263] ; State Key Laboratory of Systematic and Evolutionary Botany
作者邮箱	yang_fsh@ibcas.ac.cn
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27066
专题	系统与进化植物学国家重点实验室
作者单位	1.[Zhao, Chao 2.Wang, Xiao-Quan 3.Chinese Acad Sci, State Key Lab Systemat & Evolutionary Bot, Inst Bot, Beijing 100093, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Chao,Wang, Xiao-Quan,Yang, Fu-Sheng. Mechanisms underlying flower color variation in Asian species of Meconopsis: A preliminary phylogenetic analysis based on chloroplast DNA and anthocyanin biosynthesis genes[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2014,52(2):125-133.
APA	Zhao, Chao,Wang, Xiao-Quan,&Yang, Fu-Sheng.(2014).Mechanisms underlying flower color variation in Asian species of Meconopsis: A preliminary phylogenetic analysis based on chloroplast DNA and anthocyanin biosynthesis genes.JOURNAL OF SYSTEMATICS AND EVOLUTION,52(2),125-133.
MLA	Zhao, Chao,et al."Mechanisms underlying flower color variation in Asian species of Meconopsis: A preliminary phylogenetic analysis based on chloroplast DNA and anthocyanin biosynthesis genes".JOURNAL OF SYSTEMATICS AND EVOLUTION 52.2(2014):125-133.

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