Epigenetic Inheritance in Rice Plants

Akimoto, Keiko; Katakami, Hatsue; Kim, Hyun-Jung; Ogawa, Emiko; Sano, Cecile M.; Wada, Yuko; Sano, Hiroshi

doi:10.1093/aob/mcm110

Cited by 247 publications

(172 citation statements)

References 63 publications

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“…oryzae pv. oryzae, abolishes its constitutive silencing, caused by hypermethylation, thus resulting in acquisition of disease resistance [8]. Both hypomethylation and disease resistant traits were faithfully maintained for at least ten generations.…”

Section: Diego Breviario* and Annamaria Gengamentioning

confidence: 99%

Stress Response in Rice

Breviario¹

2014

J Rice Res

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Section: Diego Breviario* and Annamaria Gengamentioning

confidence: 99%

Stress Response in Rice

Breviario¹

2014

J Rice Res

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“…Although a method for targeted demethylation has never been developed for any organism, transgenerational inheritance of a state of decreased methylation with an increased transcriptional activity has been noted for limited loci in plants (Paszkowski and Grossniklaus 2011). On the basis of such a notion, plants with an altered phenotype and epigenetic state have been produced (Akimoto et al 2007;Boyko et al 2010;Reinders et al 2009). Similarly, plant lines that have distinct characteristics and different epigenetic states were selected from an isogenic plant population (Hauben et al 2009).…”

Section: Perspectives On the Use Of Epigenetic Changes In Plant Biotementioning

confidence: 99%

Induction of RNA-directed DNA methylation and heritable transcriptional gene silencing as a tool to engineer novel traits in plants

Kasai

Kanazawa

2013

Plant Biotechnology

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Gene silencing through transcriptional repression can be induced by double-stranded RNA (dsRNA) that targets a gene promoter. This phenomenon, termed RNA-mediated transcriptional gene silencing (TGS), was first discovered in plants using a transgene that transcribes an inverted repeat of promoter sequence. However, endogenous genes differ from transgenes in the feasibility of TGS induction, by being more resistant to silencing. Heritable, transgenerational silencing of an endogenous gene has been induced by targeting dsRNA to the promoter in petunia and tomato plants, using a vector based on Cucumber mosaic virus. Efficient TGS depends on the function of a viral protein, which can facilitate epigenetic modifications through the transport of short interfering RNA to the nucleus. The efficiency of the TGS also depends on the length and nucleotide composition of the promoter RNA segments. Such epigenetic changes induced by the viral vector results in a novel class of modified plant, a plant that does not carry a transgene but has altered traits. Thus, TGS to modify the epigenetic state of a plant is now a feasible tool to engineer novel traits. Here we review epigenetic changes induced in a particular gene through RNA-directed DNA methylation and those induced randomly on the genome in terms of their use for plant biotechnology.

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“…In the higher plant genome, about 20-50% of cytosines are methylated, among which about 90% methylated sites lie in 'CpG' dinucleotides or 'CpNpG' trinucleotides (Madlung et al, 2002;Chan et al, 2005;Xiao et al, 2006). DNA methylation plays an important role in gene expression (Assaad et al, 1993;Matzke and Matzke, 1998;Akimoto et al, 2007). The cytosine methylation of tobacco (Nicotiana tabacum) 18S, 5.8S and 26S rRNA genes in leaf calli and in regenerated plants and their progeny have been studied (Koukalova et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Variation of genomic DNA methylation in the nitrate reductase gene of sibling tobacco (Nicotiana tabacum) cultivars

Tang

Liu³

et al. 2012

Genet. Mol. Res.

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ABSTRACT. To better understand genomic DNA methylation in sibling plant cultivars, methylation-sensitive amplification polymorphism analysis was used to investigate two sibling tobacco cultivars, Yunyan85 and Yunyan87, and their two parents, K326 and Yunyan No. 2. Differences in the degree of genomic DNA methylation were found among the four tobacco cultivars. Compared with parents, the two sibling cultivars had fewer methylated sites. Twenty-nine methylationsensitive amplification polymorphism fragments that exhibited methylation alteration in the four tobacco cultivars were recovered and sequenced. BLAST (nucleotide BLAST) searches showed that two of the 29 sequences have 99% similarity with nucleotides 1442-1694 of the nia-1 gene and the other 27 sequences contain GC, CAAT or TATA box. The nitrate reductase genes from Yunyan87, K326 and Yunyan No. 2 were found to be identical; however, the third intron of the nitrate reductase gene from Yunyan85 was different compared to the third introns of Yunyan87, K326 and Yunyan No. 2. We conclude that methylation alteration of promoter regions could be responsible for the different phenotypes in tobacco and that introns of the nitrate reductase gene can vary as a result of intra-species crossing in tobacco.

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Epigenetic Inheritance in Rice Plants

Cited by 247 publications

References 63 publications

Stress Response in Rice

Stress Response in Rice

Induction of RNA-directed DNA methylation and heritable transcriptional gene silencing as a tool to engineer novel traits in plants

Variation of genomic DNA methylation in the nitrate reductase gene of sibling tobacco (Nicotiana tabacum) cultivars

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