Molecular mechanisms of epigenetic variation in plants.
Int J Mol Sci
; 13(8): 9900-9922, 2012.
Article
en En
| MEDLINE
| ID: mdl-22949838
ABSTRACT
Natural variation is defined as the phenotypic variation caused by spontaneous mutations. In general, mutations are associated with changes of nucleotide sequence, and many mutations in genes that can cause changes in plant development have been identified. Epigenetic change, which does not involve alteration to the nucleotide sequence, can also cause changes in gene activity by changing the structure of chromatin through DNA methylation or histone modifications. Now there is evidence based on induced or spontaneous mutants that epigenetic changes can cause altering plant phenotypes. Epigenetic changes have occurred frequently in plants, and some are heritable or metastable causing variation in epigenetic status within or between species. Therefore, heritable epigenetic variation as well as genetic variation has the potential to drive natural variation.
Palabras clave
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1
Banco de datos:
MEDLINE
Asunto principal:
Plantas
/
Variación Genética
/
Regulación de la Expresión Génica de las Plantas
/
Epigénesis Genética
Idioma:
En
Año:
2012
Tipo del documento:
Article