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|Title:||Regulation of Floral Patterning by Flowering Time Genes|
|Citation:||Liu, C., Xi, W., Shen, L., Tan, C., Yu, H. (2009-05-19). Regulation of Floral Patterning by Flowering Time Genes. Developmental Cell 16 (5) : 711-722. ScholarBank@NUS Repository. https://doi.org/10.1016/j.devcel.2009.03.011|
|Abstract:||Floral patterning in Arabidopsis requires activation of floral homeotic genes by the floral meristem identity gene, LEAFY (LFY). Here we show that precise activation of expression of class B and C homeotic genes in floral meristems is regulated by three flowering time genes, SHORT VEGETATIVE PHASE (SVP), SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1), and AGAMOUS-LIKE 24 (AGL24), through direct control of a LFY coregulator, SEPALLATA3 (SEP3). Orchestrated repression of SEP3 by SVP, AGL24, and SOC1 is mediated by recruiting two interacting chromatin regulators, TERMINAL FLOWER 2/LIKE HETEROCHROMATIN PROTEIN 1 and SAP18, a member of SIN3 histone deacetylase complex. Our finding of coordinated regulation of SEP3 by flowering time genes reveals a hitherto unknown genetic pathway that prevents premature differentiation of floral meristems and determines the appropriate timing of floral organ patterning. © 2009 Elsevier Inc. All rights reserved.|
|Source Title:||Developmental Cell|
|Appears in Collections:||Staff Publications|
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