Delphinieae flowers originated from the rewiring of interactions between duplicated and diversified floral organ identity and symmetry genes

doi:10.1093/plcell/koac368

	Delphinieae flowers originated from the rewiring of interactions between duplicated and diversified floral organ identity and symmetry genes
	Zhao, Huiqi 1,3; Liao, Hong ; Li, Shuixian 1,2; Zhang, Rui 4; Dai, Jing ; Ma, Pengrui ; Wang, Tianpeng ; Wang, Meimei 1,2; Yuan, Yi 1,2; Fu, Xuehao 2; Cheng, Jie 2; Duan, Xiaoshan ; Xie, Yanru 4; Zhang, Peng 4; Kong, Hongzhi1,2 ; Shan, Hongyan 2
	2023
发表期刊	PLANT CELL
ISSN	1040-4651
卷号	35 期号:3 页码:994-1012
摘要	Species of the tribe Delphinieae (Ranunculaceae) have long been the focus of morphological, ecological, and evolutionary studies due to their highly specialized, nearly zygomorphic (bilaterally symmetrical) spiral flowers with nested petal and sepal spurs and reduced petals. The mechanisms underlying the development and evolution of Delphinieae flowers, however, remain unclear. Here, by conducting extensive phylogenetic, comparative transcriptomic, expression, and functional studies, we clarified the evolutionary histories, expression patterns, and functions of floral organ identity and symmetry genes in Delphinieae. We found that duplication and/or diversification of APETALA3-3 (AP3-3), AGAMOUS-LIKE6 (AGL6), CYCLOIDEA (CYC), and DIVARICATA (DIV) lineage genes was tightly associated with the origination of Delphinieae flowers. Specifically, an AGL6-lineage member (such as the Delphinium ajacis AGL6-1a) represses sepal spur formation and petal development in the lateral and ventral parts of the flower while determining petal identity redundantly with AGL6-1b. By contrast, two CYC2-like genes, CYC2b and CYC2a, define the dorsal and lateral-ventral identities of the flower, respectively, and form complex regulatory links with AP3-3, AGL6-1a, and DIV1. Therefore, duplication and diversification of floral symmetry genes, as well as co-option of the duplicated copies into the preexisting floral regulatory network, have been key for the origin of Delphinieae flowers. The making of highly complex Delphinieae flowers involved the duplication and diversification of floral organ identity genes and floral symmetry genes, as well as the rewiring of their interactions.
学科领域	Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology
DOI	10.1093/plcell/koac368
收录类别	SCI
语种	英语
WOS关键词	TRANSCRIPTION FACTORS ; ABC MODEL ; EVOLUTION ; ZYGOMORPHY ; ARABIDOPSIS ; EXPRESSION ; ASYMMETRY ; PERIANTH ; RANUNCULACEAE ; GENERATION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000921918000001
出版者	OXFORD UNIV PRESS INC
文献子类	Article
出版地	CARY
EISSN	1532-298X
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences [XDB27010304] ; National Natural Science Foundation of China [31930008, 31970246, 31970247] ; K.C. Wong Education Foundation [GJTD-2020-05]
作者邮箱	hzkong@ibcas.ac.cn ; shanhongyan@ibcas.ac.cn
引用统计	被引频次：4[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/2S10CLM1/29126
专题	系统与进化植物学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, CAS Ctr Excellence Mol Plant Sci, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Hainan Acad Agr Sci, Haikou 571100, Peoples R China 4.China Natl Bot Garden, Beijing 100093, Peoples R China 5.Northwest A&F Univ, Coll Hort, Yangling, Xianyang 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Huiqi,Liao, Hong,Li, Shuixian,et al. Delphinieae flowers originated from the rewiring of interactions between duplicated and diversified floral organ identity and symmetry genes[J]. PLANT CELL,2023,35(3):994-1012.
APA	Zhao, Huiqi.,Liao, Hong.,Li, Shuixian.,Zhang, Rui.,Dai, Jing.,...&Shan, Hongyan.(2023).Delphinieae flowers originated from the rewiring of interactions between duplicated and diversified floral organ identity and symmetry genes.PLANT CELL,35(3),994-1012.
MLA	Zhao, Huiqi,et al."Delphinieae flowers originated from the rewiring of interactions between duplicated and diversified floral organ identity and symmetry genes".PLANT CELL 35.3(2023):994-1012.

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