A molecular framework underlying the compound leaf pattern of Medicago truncatula

doi:10.1038/s41477-020-0642-2

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 2012年后新成立研究组

	A molecular framework underlying the compound leaf pattern of Medicago truncatula
	He, Liangliang 2,5; Liu, Yu 5; He, Hua ; Liu, Ye 3; Qi, Jinfeng 3; Zhang, Xiaojia 2; Li, Youhan ; Mao, Yawen 2; Zhou, Shaoli 2; Zheng, Xiaoling 2
刊名	NATURE PLANTS
	2020
卷号	6 期号:5 页码:511-+
关键词	MYB TRANSCRIPTION FACTOR HOMEOBOX GENE ARABIDOPSIS ARCHITECTURE MORPHOLOGY EVOLUTION MORPHOGENESIS EXPRESSION UNIFOLIATA PROTEINS
ISSN号	2055-026X
DOI	10.1038/s41477-020-0642-2
英文摘要	Plant leaf structure is classified as either simple or compound. A simple leaf is a single leaf, whereas a compound leaf is composed of several leaflets emerging from a single compound leaf primordia. Liangliang He, Yu Liu and colleagues have identified a regulator of compound leaf formation in Medicago truncatula, leading to the discovery of an undefined class of eudicot-specific BEL1-like homeodomain proteins and a molecular framework controlling trifoliate leaf patterning. Compound leaves show more complex patterns than simple leaves, and this is mainly because of a specific morphogenetic process (leaflet initiation and arrangement) that occurs during their development. How the relevant morphogenetic activity is established and modulated to form a proper pattern of leaflets is a central question. Here we show that the trifoliate leaf pattern of the model leguminous plant Medicago truncatula is controlled by the BEL1-like homeodomain protein PINNATE-LIKE PENTAFOLIATA1 (PINNA1). We identify PINNA1 as a determinacy factor during leaf morphogenesis that directly represses transcription of the LEAFY (LFY) orthologue SINGLE LEAFLET1 (SGL1), which encodes an indeterminacy factor key to the morphogenetic activity maintenance. PINNA1 functions alone in the terminal leaflet region and synergizes with another determinacy factor, the C2H2 zinc finger protein PALMATE-LIKE PENTAFOLIATA1 (PALM1), in the lateral leaflet regions to define the spatiotemporal expression of SGL1, leading to an elaborate control of morphogenetic activity. This study reveals a framework for trifoliate leaf-pattern formation and sheds light on mechanisms generating diverse leaf forms.
学科主题	Plant Sciences
语种	英语
WOS记录号	WOS:000531787500003
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/11675]
专题	西双版纳热带植物园_2012年后新成立研究组
作者单位	1.Wen, Jiangqi; Mysore, Kirankumar S.] Noble Res Inst, Ardmore, OK USA 2.Chinese Acad Sci, Ctr Econ Bot, Core Bot Gardens, Menglun, Mengla, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Univ Sci & Technol China, Sch Life Sci, Hefei, Peoples R China 5.Chinese Acad Sci, CAS Ctr Excellence Mol Plant Sci, CAS Key Lab Trop Plant Resources & Sustainable Us, Xishuangbanna Trop Bot Garden, Kunming, Yunnan, Peoples R China 6.Oklahoma State Univ, Inst Agr Biosci, Dept Plant & Soil Sci, Ardmore, OK USA
推荐引用方式 GB/T 7714	He, Liangliang,Liu, Yu,He, Hua,et al. A molecular framework underlying the compound leaf pattern of Medicago truncatula[J]. NATURE PLANTS,2020,6(5):511-+.
APA	He, Liangliang.,Liu, Yu.,He, Hua.,Liu, Ye.,Qi, Jinfeng.,...&Chen, Jianghua.(2020).A molecular framework underlying the compound leaf pattern of Medicago truncatula.NATURE PLANTS,6(5),511-+.
MLA	He, Liangliang,et al."A molecular framework underlying the compound leaf pattern of Medicago truncatula".NATURE PLANTS 6.5(2020):511-+.