| A molecular framework underlying the compound leaf pattern of Medicago truncatula | |
He, Liangliang1,2; Liu, Yu1; He, Hua; Liu, Ye3; Qi, Jinfeng3; Zhang, Xiaojia2; Li, Youhan; Mao, Yawen2; Zhou, Shaoli2; Zheng, Xiaoling2; Bai, Quanzi2; Zhao, Baolin; Wang, Dongfa3; Wen, Jiangqi; Mysore, Kirankumar S.; Tadege, Million5; Xia, Yongmei ; Chen, Jianghua2,3
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| 2020 | |
| Source Publication | NATURE PLANTS
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| ISSN | 2055-026X |
| Volume | 6Issue:5Pages:511-+ |
| Abstract | 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. |
| Keyword | MYB TRANSCRIPTION FACTOR HOMEOBOX GENE ARABIDOPSIS ARCHITECTURE MORPHOLOGY EVOLUTION MORPHOGENESIS EXPRESSION UNIFOLIATA PROTEINS |
| Subject Area | Plant Sciences |
| DOI | 10.1038/s41477-020-0642-2 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000531787500003 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/11675 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.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 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.Wen, Jiangqi; Mysore, Kirankumar S.] Noble Res Inst, Ardmore, OK USA 6.Oklahoma State Univ, Inst Agr Biosci, Dept Plant & Soil Sci, Ardmore, OK USA |
| Recommended Citation 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-+. |
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