Functional Genomics of Salt and Drought Stress Tolerance in the Temperate Crop Apple (Malus domestica)

IF 3.9 3区 生物学 Q1 PLANT SCIENCES
Swati Verma, Namo Dubey, Vishnu Mishra, Subhash Kumar, Rajnish Sharma, Sneh Sharma, Ananda Kumar Sarkar, Ajay Kumar Thakur
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Abstract

Apple (Malus domestica) is an important economic fruit crop of the temperate regions of world. Apple productivity is known to be affected by several biotic and abiotic stresses. Among these, water scarcity and soil salinity significantly impact the physiological and metabolic processes of apple, leading to economic losses. Apple plants employ intricate physiological responses to combat drought and salt stress which are orchestrated by diverse endogenous molecular regulatory mechanisms. Modern ‘-omics’ analyses have unraveled the roles of various transcription factors in restoring cellular homeostasis and alleviating the adverse effects of drought and salinity stress on apple plants. Important functions of various miRNAs have recently been studied in the post-transcriptional regulation of gene expression under both stresses. Several protein-mediated regulatory networks underlying drought and salt stress adaptation responses in apple have lately been deciphered. All these regulons ultimately induce the biosynthesis and accumulation of protective compounds for mitigating the negative effects of drought and salinity stress on apple growth. This review coherently highlights a bunch of candidate genes involved in regulating drought and salinity stress in apple and is an exemplification of our present understanding of how apple plants respond to these stresses. The functions of these genes can further be carefully exploited for developing apple varieties with anticipated levels of drought and salt stress tolerance.

Abstract Image

温带作物苹果(Malus domestica)耐盐碱和干旱胁迫的功能基因组学
苹果(Malus domestica)是世界温带地区重要的经济水果作物。众所周知,苹果的产量受到多种生物和非生物胁迫的影响。其中,缺水和土壤盐渍化会严重影响苹果的生理和代谢过程,导致经济损失。苹果植物采用复杂的生理反应来对抗干旱和盐分胁迫,这些反应由多种内源分子调控机制协调。现代 "组学 "分析揭示了各种转录因子在恢复细胞平衡和减轻干旱和盐分胁迫对苹果植物的不利影响方面的作用。最近还研究了各种 miRNA 在这两种胁迫下对基因表达进行转录后调控的重要功能。最近还破译了苹果干旱和盐分胁迫适应性反应的几个蛋白质介导的调控网络。所有这些调控因子最终都会诱导保护性化合物的生物合成和积累,从而减轻干旱和盐分胁迫对苹果生长的负面影响。本综述连贯一致地强调了一系列参与调控苹果干旱和盐度胁迫的候选基因,体现了我们目前对苹果植物如何应对这些胁迫的理解。这些基因的功能可进一步用于培育具有预期抗旱和抗盐胁迫能力的苹果品种。
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来源期刊
CiteScore
8.40
自引率
6.20%
发文量
312
审稿时长
1.8 months
期刊介绍: The Journal of Plant Growth Regulation is an international publication featuring original articles on all aspects of plant growth and development. We welcome manuscripts reporting question-based research on various aspects of plant growth and development using hormonal, physiological, environmental, genetic, biophysical, developmental and/or molecular approaches. The journal also publishes timely reviews on highly relevant areas and/or studies in plant growth and development, including interdisciplinary work with an emphasis on plant growth, plant hormones and plant pathology or abiotic stress. In addition, the journal features occasional thematic issues with special guest editors, as well as brief communications describing novel techniques and meeting reports. The journal is unlikely to accept manuscripts that are purely descriptive in nature or reports work with simple tissue culture without attempting to investigate the underlying mechanisms of plant growth regulation, those that focus exclusively on microbial communities, or deal with the (elicitation by plant hormones of) synthesis of secondary metabolites.
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