Harnessing epigenetic variability for crop improvement: current status and future prospects

Area of Science:

• Plant biology
• Epigenetics
• Crop science

Background:

• Epigenetic mechanisms, including DNA methylation, are crucial for plant development and environmental responses.
• Conventional crop breeding methods have led to decreased genetic diversity, a concern for future breeding.
• Epigenetic diversity presents a novel resource for enhancing crop breeding strategies, termed epibreeding.

Purpose of the Study:

• To review natural and induced epigenetic changes affecting agronomic traits in plants.
• To discuss methodologies for generating epigenomic diversity.
• To explore site-specific epigenetic engineering approaches for crop improvement.

Main Methods:

• Review of existing literature on plant epigenetics and crop breeding.
• Discussion of methods for inducing methylome changes (chemical treatments, tissue culture).
• Highlighting advanced techniques like CRISPR-Cas9 for targeted epigenetic engineering.

Main Results:

• Epigenetic modifications can significantly impact plant agronomic traits.
• Various methods exist for inducing and controlling epigenetic changes in plants.
• CRISPR-Cas9 facilitates precise epigenetic engineering for epibreeding.

Conclusions:

• Epigenetic diversity is a valuable resource for modern crop breeding.
• Advanced tools enable targeted epigenetic modifications to enhance crop performance.
• Epibreeding holds significant potential for developing resilient and productive crops.