Epigenetic Regulation of Yield-related Traits in Maize and Epibreeding

doi:10.13560/j.cnki.biotech.bull.1985.2023-0378

Abstract

Abstract:

Crop phenotypic diversity is influenced by many factors, and epigenetic variation can control crop traits and stress response through epigenetic modification to regulate gene expressions, and then affect crop yield. The main agronomic traits affecting maize yield include plant height, leaf angle and root. In addition, germplasm resources, biotic stress and abiotic stress are also key factors affecting maize yield. The main epigenetic regulation modes in crops include histone modification, DNA modification, RNA modification, non-coding RNA and chromatin remodeling. In this review, the epigenetic mechanism of the main agronomic traits in maize is summarized from the perspective of epigenetic regulation, and the new strategy of epigenetics-mediated crop breeding（epibreeding）to improve maize yield is proposed in combination with CRISPR/Cas-based epigenome editing technology.

Key words: phenotype, epigenetic variation, yield-related traits, epigenetic modification, epigenome editing, maize, breeding

ZHANG Dao-lei, GAN Yu-jun, LE Liang, PU Li. Epigenetic Regulation of Yield-related Traits in Maize and Epibreeding[J]. Biotechnology Bulletin, 2023, 39(8): 31-42.

Figures/Tables 2

References 121

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类型Type	修饰相关酶Modification related enzymes	修饰Modification	参考文献Reference
甲基化酶Writer	HIZ1/2（Arabidopsis thaliana）	m⁶A	[69,82]
	MTA/B（Arabidopsis thaliana）
	FIP37（Arabidopsis thaliana）
	VIR（Arabidopsis thaliana）
	TRM4A/4B（Arabidopsis thaliana）	m⁵C	[78,80]
	OsNSUN1/2（Rice）
	PhTRMT61A（Petunia）	m¹A	[83]
去甲基化酶Eraser	ALKBH9B（Arabidopsis thaliana）	m⁶A	[84]
	ALKBH10B（Arabidopsis thaliana）
识别蛋白Reader	ECT2/ECT3/ECT4（Arabidopsis thaliana）	m⁶A	[68]
	CPSF30L（Arabidopsis thaliana）

类型Type	修饰相关酶Modification related enzymes	修饰Modification	参考文献Reference
甲基化酶Writer	HIZ1/2（Arabidopsis thaliana）	m⁶A	[69,82]
	MTA/B（Arabidopsis thaliana）
	FIP37（Arabidopsis thaliana）
	VIR（Arabidopsis thaliana）
	TRM4A/4B（Arabidopsis thaliana）	m⁵C	[78,80]
	OsNSUN1/2（Rice）
	PhTRMT61A（Petunia）	m¹A	[83]
去甲基化酶Eraser	ALKBH9B（Arabidopsis thaliana）	m⁶A	[84]
	ALKBH10B（Arabidopsis thaliana）
识别蛋白Reader	ECT2/ECT3/ECT4（Arabidopsis thaliana）	m⁶A	[68]
	CPSF30L（Arabidopsis thaliana）