Maize Improvement Based on Modern Breeding Strategies: Progress and Perspective

IF 2.3 Q1 AGRICULTURE, MULTIDISCIPLINARY ACS agricultural science & technology Pub Date : 2024-01-13 DOI:10.1021/acsagscitech.3c00427
Bing He, Shuangshuang Pan, Junfeng Zhao, Xinxin Zou, Xiaojuan Liu and Suowei Wu*, 
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Abstract

As a primary food cereal, maize (Zea mays L.) has been domesticated for thousands of years and undergoes four breeding stages to date, including Breeding 1.0 (experience breeding), Breeding 2.0 (experimental breeding), Breeding 3.0 (biological breeding), and Breeding 4.0 (intelligent breeding). In this review, we focus on the recent advances of modern breeding strategies and their applications in the maize Breeding 3.0 stage. These modern breeding strategies mainly include marker-assisted selection, genomic selection, genetic engineering, haploid induced breeding, gene editing, and synthetic biology, which act as breeding accelerators and lead to maize improvement in different important traits, such as male sterility, grain yield, grain quality, biotic and abiotic stress resistance, and nitrogen use efficiency. Furthermore, we also propose several promising breeding strategies in the next era of Breeding 4.0, which will improve maize production greatly for ensuring global food security.

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基于现代育种策略的玉米改良:进展与展望
作为一种主要的粮食谷物,玉米(Zea mays L.)已有数千年的驯化历史,迄今为止经历了四个育种阶段,包括育种 1.0(经验育种)、育种 2.0(实验育种)、育种 3.0(生物育种)和育种 4.0(智能育种)。在本综述中,我们将重点介绍现代育种策略的最新进展及其在玉米育种 3.0 阶段的应用。这些现代育种策略主要包括标记辅助选择、基因组选择、基因工程、单倍体诱导育种、基因编辑和合成生物学等,它们是育种的加速器,可促进玉米不同重要性状的改良,如雄性不育、谷物产量、谷物品质、抗生物和非生物胁迫、氮利用效率等。此外,我们还提出了下一个 "育种 4.0 "时代的几种前景广阔的育种策略,这些策略将大大提高玉米产量,确保全球粮食安全。
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