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Biochem Biophys Res Commun. 2007 May 18;356(4):843-50. Epub 2007 Mar 12.

Sequence and expression analysis of histone deacetylases in rice.

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South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.


Histone acetylation levels are determined by the action of histone acetyltransferases and histone deacetylases (HDACs). Sequence similarity and profile searching tools were used to analyze the genome sequence of rice (Oryzae sativa) for genes encoding HDAC proteins. The rice RPD3/HDA1-family HDAC proteins can be divided into four classes based on sequence similarity and phylogenetic analysis of sequences obtained from the rice genome. The spatial expression pattern of rice HDACs genes indicated that some HDAC genes have different expression profiles. Furthermore, our analysis indicated that expression of HDA705, HDT701, and HDT702 could be affected by salicylic acid, jasmonic acid or abscisic acid. Expression of HDA714, SRT702, and SRT701 could be modulated by abiotic stresses, such as cold, mannitol and salt. These results indicate that different HDAC genes have distinct expression patterns and members of rice HDAC families may be involved in plant response to environmental stresses.

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