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|Title:||J3 regulation of flowering time is mainly contributed by its activity in leaves|
|Source:||Shen, L.,Yu, H. (2011-04-01). J3 regulation of flowering time is mainly contributed by its activity in leaves. Plant Signaling and Behavior 6 (4) : 601-603. ScholarBank@NUS Repository. https://doi.org/10.4161/psb.6.4.15375|
|Abstract:||Multiple genetic pathways coordinately determine the timing of the floral transition from vegetative to reproductive development in response to various endogenous and environmental signals. We have recently reported that a novel flowering promoter, DNAJ HOMOLOG 3 (J3), acts downstream of various floral pathways and mediates the transcriptional regulation of two floral pathway integrators, FLOWRING LOCUS T and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1, through its interaction with a potent flowering repressor, SHORT VEGETATIVE PHASE. Here we show that J3 expression driven by the promoter of SUCROSE TRANSPORTER 2 significantly rescues the late-flowering phenotype of j3-1 loss-of-function mutants, suggesting that J3 activity in leaves mainly contributes to its role in regulating flowering time. Furthermore, we reveal that endogenous expression of J3 requires the cis-element(s) located within J3 coding regions or introns. © 2011 Landes Bioscience.|
|Source Title:||Plant Signaling and Behavior|
|Appears in Collections:||Staff Publications|
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