Repeat elements and the Arabidopsis DNA methylation landscape
نویسندگان
چکیده
منابع مشابه
Loss of DNA methylation affects the recombination landscape in Arabidopsis.
During sexual reproduction, one-half of the genetic material is deposited in gametes, and a complete set of chromosomes is restored upon fertilization. Reduction of the genetic information before gametogenesis occurs in meiosis, when cross-overs (COs) between homologous chromosomes secure an exchange of their genetic information. COs are not evenly distributed along chromosomes and are suppress...
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DNA methylation of CpG dinucleotides is essential for mammalian development, X inactivation, genomic imprinting, and may also be involved in immobilization of transposons and the control of tissue-specific gene expression (Bird & Wolffe, 1999). The common theme in each of these processes is gene silencing. Therefore, gene silencing is a major biological consequence of DNA methylation. As such, ...
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In plants, transcribed inverted repeats trigger RNA interference (RNAi) and DNA methylation of identical sequences. RNAi is caused by processing of the double-stranded RNA (dsRNA) transcript into small RNAs that promote degradation of complementary RNA sequences. However, the signals for DNA methylation remain to be fully elucidated. The Arabidopsis tryptophan biosynthetic PAI genes provide an ...
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ژورنال
عنوان ژورنال: Heredity
سال: 2010
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.2010.52