Epigenetic and developmental regulation in plant polyploids.

Abstract

Polyploidy or whole-genome duplication occurs in some animals and many flowering plants, including many important crops such as wheat, cotton and oilseed rape. The prevalence of polyploidy in the plant kingdom suggests it as an important evolutionary feature for plant speciation and crop domestication. Studies of natural and synthetic polyploids have revealed rapid and dynamic changes in genomic structure and gene expression after polyploid formation. Growing evidence suggests that epigenetic modifications can alter homoeologous gene expression and reprogram gene expression networks, which allows polyploids to establish new cytotypes, grow vigorously and promote adaptation in local environments. Sequence and gene expression changes in polyploids have been well documented and reviewed elsewhere. This review is focused on developmental regulation and epigenetic changes including DNA methylation and histone modifications in polyploids.

• Authors: Qingxin Song, Z Jeffrey Chen
• Journal: Current opinion in plant biology (Curr Opin Plant Biol) Vol. 24 Pg. 101-9 (Apr 2015) ISSN: 1879-0356 [Electronic] England
• PMID: 25765928 (Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S., Review)
• Copyright: Copyright © 2015 Elsevier Ltd. All rights reserved.

Chemical References

• Histones
• Plant Proteins

Topics

• DNA Methylation
• Epigenesis, Genetic
• Histones (genetics, metabolism)
• Plant Development
• Plant Proteins (genetics, metabolism)
• Plants (genetics)
• Polyploidy