GmNAC8 acts as a positive regulator in soybean drought stress

Yang, Chengfeng; Huang, Yanzhong; Lv, Wenhuan; Zhang, Yingying; Bhat, Javaid Akhter; Kong, Jiejie; Han, Xiaobin; Zhao, Tuanjie

doi:10.1016/j.plantsci.2020.110442

Cited by 43 publications

(37 citation statements)

References 83 publications

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“…15% PEG (w/v) and control (distilled water) conditions, respectively. The experiment was carried out with three biological replications in a completely randomized design (CRD) following the procedure of Yang et al (2020). Petri-plates containing sterilized seeds were incubated in a growth chamber for 5 days at 25 C with 60% relative humidity under a 16/8 h (light/dark) cycle.…”

Section: Growth Condition and Phenotypic Evaluationmentioning

confidence: 99%

Comprehensive RNA‐seq analysis revealed molecular pathways and genes associated with drought tolerance in wild soybean (Glycine soja Sieb. and Zucc.)

Aleem

Raza

Haider

et al. 2020

Physiologia Plantarum

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Drought stress at the germination stage is an important environmental stress limiting crop yield. Hence, our study investigated comparative root transcriptome profiles of four contrasting soybean genotypes viz., drought-tolerant (PI342618B/DTP and A214/DTL) and drought-sensitive (NN86-4/DSP and A195/DSL) under drought stress using RNA-Seq approach. A total of 4850 and 6272 differentially expressed genes (DEGs) were identified in tolerant (DTP and DTL) and sensitive (DSP and DSL) genotypes, respectively. Principle component analysis (PCA) and correlation analysis revealed higher correlation between DTP and DTL. Both gene ontology (GO) and MapMan analyses showed that the drought response was enriched in DEGs associated with water and auxin transport, cell wall/membrane, antioxidant activity, catalytic activity, secondary metabolism, signaling and transcription factor (TF) activities.Out of 981 DEGs screened from above terms, only 547 showed consistent opposite expression between contrasting genotypes. Twenty-eight DEGs of 547 were located on Chr.08 rich in QTLs and "Hotspot regions" associated with drought stress, and eight of them showed non-synonymous single nucleotide polymorphism. Hence, 10 genes (including above eight genes plus two hub genes) were predicated as possible candidates regulating drought tolerance, which needs further functional validation. Overall, the transcriptome profiling provided in-depth understanding about the genetic mechanism and candidate genes underlying drought tolerance in soybean.

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Section: Growth Condition and Phenotypic Evaluationmentioning

confidence: 99%

Comprehensive RNA‐seq analysis revealed molecular pathways and genes associated with drought tolerance in wild soybean (Glycine soja Sieb. and Zucc.)

Aleem

Raza

Haider

et al. 2020

Physiologia Plantarum

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“…With climate change and the expansion of human activities, drought stress is becoming more severe and frequent in arid and semi-arid regions. Drought stress triggers several destructive effects in plants, including osmotic imbalance, membrane system damage, cellular metabolic disturbance and abnormal water distribution (Guo et al 2020;Yang et al 2020b).…”

Section: Introductionmentioning

confidence: 99%

Unravelling the role of arbuscular mycorrhizal fungi in mitigating the oxidative burst of plants under drought stress

2020

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With continued climate changes, soil drought stress has become the main limiting factor for crop growth in arid and semi-arid regions. A typical characteristic of drought stress is the burst of reactive oxygen species (ROS), causing oxidative damage. Plant-associated microbes, such as arbuscular mycorrhizal fungi (AMF), can regulate physiological and molecular responses to tolerate drought stress, and they have a strong ability to cope with drought-induced oxidative damage via enhanced antioxidant defence systems. AMF produce a limited oxidative burst in the arbuscule-containing root cortical cells. Similar to plants, AMF modulate a fungal network in enzymatic (e.g. GmarCuZnSOD and GintSOD1) and non-enzymatic (e.g. GintMT1, GinPDX1 and GintGRX1) antioxidant defence systems to scavenge ROS. Plants also respond to mycorrhization to enhance stress tolerance via metabolites and the induction of genes. The present review provides an overview of the network of plant À arbuscular mycorrhizal fungus dialogue in mitigating oxidative stress. Future studies should involve identifying genes and transcription factors from both AMF and host plants in response to drought stress, and utilize transcriptomics, proteomics and metabolomics to clarify a clear dialogue mechanism between plants and AMF in mitigating oxidative burst.

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“…Hence, smart soybeans are able to produce a stable yield in droughtprone areas. Traits, such as improved water retention, restricted transpiration and stable photosynthesis, are desirable to sustain biomass and yield under water-deficit conditions (Wei et al, 2019;Kunert and Vorster, 2020;Yang et al, 2020). A combination of such traits would make a cultivar suitable for cultivation in arid or semi-arid regions (Liu et al, 2005;Abdel-Haleem et al, 2012;Carter et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Towards Developing Drought-smart Soybeans

2021

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Drought is one of the significant abiotic stresses threatening crop production worldwide. Soybean is a major legume crop with immense economic significance, but its production is highly dependent on optimum rainfall or abundant irrigation. Also, in dry periods, it may require supplemental irrigation for drought-susceptible soybean varieties. The effects of drought stress on soybean including osmotic adjustments, growth morphology and yield loss have been well studied. In addition, drought-resistant soybean cultivars have been investigated for revealing the mechanisms of tolerance and survival. Advanced high-throughput technologies have yielded remarkable phenotypic and genetic information for producing drought-tolerant soybean cultivars, either through molecular breeding or transgenic approaches. Further, transcriptomics and functional genomics have led to the characterisation of new genes or gene families controlling drought response. Interestingly, genetically modified drought-smart soybeans are just beginning to be released for field applications cultivation. In this review, we focus on breeding and genetic engineering approaches that have successfully led to the development of drought-tolerant soybeans for commercial use.

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GmNAC8 acts as a positive regulator in soybean drought stress

Cited by 43 publications

References 83 publications

Comprehensive RNA‐seq analysis revealed molecular pathways and genes associated with drought tolerance in wild soybean (Glycine soja Sieb. and Zucc.)

Comprehensive RNA‐seq analysis revealed molecular pathways and genes associated with drought tolerance in wild soybean (Glycine soja Sieb. and Zucc.)

Unravelling the role of arbuscular mycorrhizal fungi in mitigating the oxidative burst of plants under drought stress

Towards Developing Drought-smart Soybeans

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