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[Developmental expression of Arabidopsis methyltransferase genes MET1, DRM2 and CMT3].

Mol. Biol. (Mosk.). 2014 Sep-Oct ;48(5):782-9. doi:10.7868/s002689841405005x
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摘要


Cytosine methylation is an epigenetic mark found in the genome of fungi, plants, and animals. DNA methylation is catalyzed by DNA methyltransferases. The function of DNA methyltransferases was shown to be highly conversed, but biological role of these enzymes has not been clearly defined. We generated transgenic plants expressing METHYLTRANSFERASES::GUS reporter genes for three major DNA methyltransferases (MET1, DRM2 and CMT3) to gain insight into the potential physiological relevance of the distinct members of the DNA methyltransferase family in Arabidopsis thaliana, and to investigate the expression patterns in detail. We found that METHYLTRANSFERASE::GUS genes display unique tissue, cell-type, and temporal patterns of expression throughout normal development, particularly in the flower. Our findings are supported by semi-quantitative reverse-transcription PCR, as well as by analyses of microarray databases. These data suggest that DNA methyltransferase may contribute to morphogenesis at every developmental stage and in every plant organ.

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基因功能


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原始数据


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