Is HUB1 a hub for plant fitness?

Recently, we have identified circadian clock genes as targets of Histone Monoubiquitination1 (HUB1) in Arabidopsis from a transcriptome comparison between the hub1-1 mutant and HUB1 overexpression lines. HUB1 affected the amplitudes of the circadian clock gene expression profiles in the hub1-1 mutan...

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Veröffentlicht in:	Plant signaling & behavior 2012-12, Vol.7 (12), p.1537-1540
Hauptverfasser:	Himanen, Kristiina, Boccardi, Tommaso Matteo, De Rycke, Riet, Odeny, Ojola Patrick, Van Lijsebettens, Mieke
Format:	Artikel
Sprache:	eng
Schlagworte:	Arabidopsis Arabidopsis - genetics Arabidopsis - metabolism Arabidopsis - physiology Arabidopsis Proteins - genetics Arabidopsis Proteins - metabolism Chloroplasts - metabolism Chloroplasts - physiology circadian clocks Gene Expression Regulation, Plant gene overexpression genes histones mutants Plants, Genetically Modified - genetics Plants, Genetically Modified - metabolism Plants, Genetically Modified - physiology Short Communication transcriptome Ubiquitin-Protein Ligases - genetics Ubiquitin-Protein Ligases - metabolism Ubiquitination
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Zusammenfassung:	Recently, we have identified circadian clock genes as targets of Histone Monoubiquitination1 (HUB1) in Arabidopsis from a transcriptome comparison between the hub1-1 mutant and HUB1 overexpression lines. HUB1 affected the amplitudes of the circadian clock gene expression profiles in the hub1-1 mutant that coincided with reduced monoubiquitination of histone H2B at their coding regions. Here we showed that parameters for plant fitness are altered in HUB1 mutant and overexpression lines, suggesting that the histone H2B monoubiquitination status affects plant fitness.
ISSN:	1559-2316 1559-2324 1559-2324
DOI:	10.4161/psb.22326