玉米(Zea mays)耐旱过程中的遗传、分子和生理串联:通往弹性农业的途径。

IF 3.6 3区 生物学 Q1 PLANT SCIENCES
Planta Pub Date : 2024-08-28 DOI:10.1007/s00425-024-04517-9
Latif A Peer, Mohd Y Bhat, Ajaz A Lone, Zahoor A Dar, Bilal A Mir
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引用次数: 0

摘要

主要结论:本综述全面阐明了对全球粮食安全至关重要的玉米抗旱机制。它强调了基因网络、关键基因、CRISPR-Cas 应用和生理反应,为抗逆品种的开发提供了指导。玉米作为一种全球重要的作物,面临着干旱胁迫的普遍挑战,其生长和产量受到严重影响。干旱是一种重要的非生物胁迫,会引发一系列变化,包括玉米的形态、生化和生理方面。揭示和理解这些机制对于确保全球粮食安全至关重要。开发耐旱品种、利用基因组和分子应用等方法已成为减轻干旱负面影响的有效措施。玉米耐旱性的多面性通过复杂的遗传网络得以展现。此外,定量性状基因座图谱绘制和全基因组关联研究精确定位了与耐旱性相关的关键基因,这些基因影响着形态生理性状和产量。此外,ZmHsf28、ZmNAC20 和 ZmNF-YA1 等转录因子通过激素信号转导、气孔调节和基因表达在干旱响应中发挥着关键作用。据报道,ZmSAG39、ZmRAFS 和 ZmBSK1 等基因通过不同的机制在提高抗旱性方面起着关键作用。以 gl2 和 ZmHDT103 等基因为靶标的 CRISPR-Cas9 技术的整合对于精确的基因强化至关重要,突出了其在普遍的干旱挑战中保障全球粮食安全的作用。因此,解码玉米耐旱性的遗传和分子基础揭示了玉米的抗逆性,为培育健壮的气候智能型品种铺平了道路,从而在气候挑战中保障全球粮食安全。本综述涵盖定量性状位点图绘制、全基因组关联研究、关键基因和功能、CRISPR-Cas 应用、转录因子、生理反应、信号通路等内容,有助于深入了解玉米耐旱性所涉及的复杂机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Genetic, molecular and physiological crosstalk during drought tolerance in maize (Zea mays): pathways to resilient agriculture.

Genetic, molecular and physiological crosstalk during drought tolerance in maize (Zea mays): pathways to resilient agriculture.

Main conclusion: This review comprehensively elucidates maize drought tolerance mechanisms, vital for global food security. It highlights genetic networks, key genes, CRISPR-Cas applications, and physiological responses, guiding resilient variety development. Maize, a globally significant crop, confronts the pervasive challenge of drought stress, impacting its growth and yield significantly. Drought, an important abiotic stress, triggers a spectrum of alterations encompassing maize's morphological, biochemical, and physiological dimensions. Unraveling and understanding these mechanisms assumes paramount importance for ensuring global food security. Approaches like developing drought-tolerant varieties and harnessing genomic and molecular applications emerge as effective measures to mitigate the negative effects of drought. The multifaceted nature of drought tolerance in maize has been unfolded through complex genetic networks. Additionally, quantitative trait loci mapping and genome-wide association studies pinpoint key genes associated with drought tolerance, influencing morphophysiological traits and yield. Furthermore, transcription factors like ZmHsf28, ZmNAC20, and ZmNF-YA1 play pivotal roles in drought response through hormone signaling, stomatal regulation, and gene expression. Genes, such as ZmSAG39, ZmRAFS, and ZmBSK1, have been reported to be pivotal in enhancing drought tolerance through diverse mechanisms. Integration of CRISPR-Cas9 technology, targeting genes like gl2 and ZmHDT103, emerges as crucial for precise genetic enhancement, highlighting its role in safeguarding global food security amid pervasive drought challenges. Thus, decoding the genetic and molecular underpinnings of drought tolerance in maize sheds light on its resilience and paves the way for cultivating robust and climate-smart varieties, thus safeguarding global food security amid climate challenges. This comprehensive review covers quantitative trait loci mapping, genome-wide association studies, key genes and functions, CRISPR-Cas applications, transcription factors, physiological responses, signaling pathways, offering a nuanced understanding of intricate mechanisms involved in maize drought tolerance.

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来源期刊
Planta
Planta 生物-植物科学
CiteScore
7.20
自引率
2.30%
发文量
217
审稿时长
2.3 months
期刊介绍: Planta publishes timely and substantial articles on all aspects of plant biology. We welcome original research papers on any plant species. Areas of interest include biochemistry, bioenergy, biotechnology, cell biology, development, ecological and environmental physiology, growth, metabolism, morphogenesis, molecular biology, new methods, physiology, plant-microbe interactions, structural biology, and systems biology.
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