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The use of anti-5-methylcytosine antibodies in affinity columns allowed the identification of methylated sequences in the
genome of Drosophila melanogaster adults. In view of the presence of transposable elements amongst the identified sequences, it has been suggested that DNA
methylation is involved in transposon control in the fly genome. On the contrary, a reanalysis of these data furnishes several
intriguing elements that could raise new questions about the role that DNA methylation plays in the fly genome. The aim of
the present paper is to discuss some features that emerge from the analysis of the identified methylated sequences.
Received 26 January 2006; received after revision 8 May 2006; accepted 2 June 2006 相似文献
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Mandrioli M 《Cellular and molecular life sciences : CMLS》2004,61(19-20):2425-2427
The function of DNA methylation has been investigated in depth in vertebrate and plant genomes, establishing that it is involved in gene silencing and transposon control. Data regarding insect methylation, even if still scanty, apparently argue against evolutionary conservation of DNA methylation functions. Cytosine methylation, therefore, proves to be an epigenetic tool repeatedly used to accomplish different functions in different taxa according to a sort of epigenetic tinkering occurring during evolution. 相似文献
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