DNA methylation polymorphism and stability in Chinese indica hybrid rice

Conventional rice breeding has long focused on exploiting the DNA sequence diversity. However, epigenetic diversity, re- flected particularly in DNA methylation, can also contribute to phenotypic variation and should not be overlooked in rice breeding. In this study, 20 parental lines of indica rice...

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Published in:Science China. Life sciences 2013-12, Vol.56 (12), p.1097-1106
Main Authors: Peng, Hai, Jiang, GuangHuai, Zhang, Jing, Zhang, Weixiong, Zhai, WenXue
Format: Article
Language:English
Subjects:
Alleles
Base Sequence
Biomedical and Life Sciences
Breeding
China
DNA Methylation - genetics
DNA, Plant - genetics
DNA, Plant - metabolism
DNA序列
DNA甲基化
Epigenesis, Genetic
Genes, Plant
Genetic Variation
Genomic Instability
Hybridization, Genetic
Life Sciences
Oryza - genetics
Oryza - metabolism
Oryza sativa
Research Paper
中国
基因多样性
多态性
水稻育种
稳定
籼型杂交稻
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creator Peng, Hai
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description Conventional rice breeding has long focused on exploiting the DNA sequence diversity. However, epigenetic diversity, re- flected particularly in DNA methylation, can also contribute to phenotypic variation and should not be overlooked in rice breeding. In this study, 20 parental lines of indica rice, which are widely used in hybrid rice breeding in China, were analyzed to investigate variations of DNA methylation and its inheritance. The results revealed a wide diversity in DNA methylation among these breeding lines. A positive correlation was seen between DNA methylation and genetic diversity. Furthermore, some of the methylated DNA was inherited in the subsequent generation, regardless of whether they were produced by selfing or hybrid-crossing. This study provides insight into the methylation patterns in rice, and suggests the importance of epigenetic diversity in rice breeding.
doi_str_mv 10.1007/s11427-013-4576-z
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ispartof Science China. Life sciences, 2013-12, Vol.56 (12), p.1097-1106
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source Springer Nature
subjects Alleles
Base Sequence
Biomedical and Life Sciences
Breeding
China
DNA Methylation - genetics
DNA, Plant - genetics
DNA, Plant - metabolism
DNA序列
DNA甲基化
Epigenesis, Genetic
Genes, Plant
Genetic Variation
Genomic Instability
Hybridization, Genetic
Life Sciences
Oryza - genetics
Oryza - metabolism
Oryza sativa
Research Paper
中国
基因多样性
多态性
水稻育种
稳定
籼型杂交稻
title DNA methylation polymorphism and stability in Chinese indica hybrid rice
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