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SUPERMAN regulates floral whorl boundaries through control of auxin biosynthesis

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dc.contributor.author Xu, Yifeng
dc.contributor.author Prunet, Nathanael
dc.contributor.author Gan, Eng‐Seng
dc.contributor.author Wang, Yanbin
dc.contributor.author Stewart, Darragh
dc.contributor.author Wellmer, Frank
dc.contributor.author Huang, Jiangbo
dc.contributor.author Yamaguchi, Nobutoshi
dc.contributor.author Tatsumi, Yoshitaka
dc.contributor.author Kojima, Mikiko
dc.contributor.author Kiba, Takatoshi
dc.contributor.author Sakakibara, Hitoshi
dc.contributor.author Jack, Thomas P
dc.contributor.author Meyerowitz, Elliot M
dc.contributor.author Ito, Toshiro
dc.date.accessioned 2018-05-21T06:53:37Z
dc.date.available 2018-05-21T06:53:37Z
dc.date.issued 2018-05-15
dc.identifier.issn 1460-2075
dc.identifier.uri http://hdl.handle.net/10061/12552
dc.description.abstract Proper floral patterning, including the number and position of floral organs in most plant species, is tightly controlled by the precise regulation of the persistence and size of floral meristems (FMs). In Arabidopsis, two known feedback pathways, one composed of WUSCHEL (WUS) and CLAVATA3 (CLV3) and the other composed of AGAMOUS (AG) and WUS, spatially and temporally control floral stem cells, respectively. However, mounting evidence suggests that other factors, including phytohormones, are also involved in floral meristem regulation. Here, we show that the boundary gene SUPERMAN (SUP) bridges floral organogenesis and floral meristem determinacy in another pathway that involves auxin signaling. SUP interacts with components of polycomb repressive complex 2 (PRC2) and fine‐tunes local auxin signaling by negatively regulating the expression of the auxin biosynthesis genes YUCCA1/4 (YUC1/4). In sup mutants, derepressed local YUC1/4 activity elevates auxin levels at the boundary between whorls 3 and 4, which leads to an increase in the number and the prolonged maintenance of floral stem cells, and consequently an increase in the number of reproductive organs. Our work presents a new floral meristem regulatory mechanism, in which SUP, a boundary gene, coordinates floral organogenesis and floral meristem size through fine‐tuning auxin biosynthesis. ja_JP
dc.language.iso en ja_JP
dc.publisher EMBO ja_JP
dc.subject auxin ja_JP
dc.subject floral meristem ja_JP
dc.subject floral organogenesis ja_JP
dc.subject H3K27me3 ja_JP
dc.subject polycomb repressive complexes ja_JP
dc.subject SUPERMAN ja_JP
dc.title SUPERMAN regulates floral whorl boundaries through control of auxin biosynthesis ja_JP
dc.type.nii Journal Article ja_JP
dc.contributor.transcription イトウ, トシロウ
dc.contributor.alternative 伊藤, 寿朗
dc.identifier.fulltexturl http://emboj.embopress.org/content/early/2018/05/14/embj.201797499 ja_JP
dc.textversion author ja_JP
dc.identifier.abstracturl http://emboj.embopress.org/content/early/2018/05/14/embj.201797499.abstract ja_JP
dc.identifier.ncid AA12024602 ja_JP
dc.identifier.jtitle The EMBO Journal ja_JP
dc.relation.doi info:doi/10.15252/embj.201797499 ja_JP
dc.identifier.NAIST-ID 74651431 ja_JP
dc.relation.pmid 29764982 ja_JP

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