crop improvement

作物改良
  • 文章类型: Journal Article
    结论:这篇综述讨论了小米手指丰富的营养成分,生物活性潜力,和工业应用,结合其气候恢复力,这使其成为增强粮食安全和促进可持续农业的有希望的作物。本综述还强调了其在解决营养不良和减轻气候变化影响方面的巨大潜力。从“穷人的主食”到“营养丰富的谷物”的出现,促使人们有必要在更广泛的范围内探索这种作物。由于其丰富的营养和生物活性特征,它是一种非常重要的作物,多样的生物活动,和有前途的工业应用,以及高的气候适应力。这项全面的审查通过与其他谷物和小米进行比较,并强调其解决营养不良和增强粮食安全的潜力,来评估其营养成分。此外,它探讨了植物化学/生物活性潜力和策略,以提高其生物利用度,然后通过强调其各种健康促进特性的手指小米的生物活性。该评论还讨论了手指小米的工业潜力,包括其在营养和功能性食品生产中的作用,以及生物能源生产。此外,小米作为气候适应作物的作用;特别是,还讨论了与主要胁迫耐受性性状相关的可用遗传资源以及基因和数量性状基因座(QTL)的鉴定。通过提供现有知识的全面综合,这项研究为研究人员提供了宝贵的见解,政策制定者,和利益攸关方参与促进可持续农业的努力,加强粮食和营养安全,减轻气候变化的影响。
    CONCLUSIONS: This review discusses the Finger millet\'s rich nutritional profile, bioactive potential, and industrial applications, combined with its climate resilience, which make it a promising crop for enhancing food security and promoting sustainable agriculture. This review also highlights its significant potential to address malnutrition and mitigate climate change impacts. The emergence of Finger millet from \"poor man\'s staple food\" to \"a nutrient rich cereal\" has encouraged the need to explore this crop at a wider scale. It is a highly significant crop due to its rich nutritional and bioactive profile, diverse biological activities, and promising industrial applications, along with the high climate resilience. This comprehensive review evaluates its nutritional composition by comparing favorably with other cereals and millets and emphasizing its potential to address malnutrition and enhance food security. Furthermore, it explores the phytochemical/bioactive potential and strategies to enhance their bioavailability followed biological activities of Finger millet by highlighting its various health-promoting properties. The review also discusses industrial potential of finger millet including its role in nutraceutical and functional food production, as well as bioenergy generation. In addition, role of Finger millet as a climate-resilient crop; specifically, the available genetic resources and identification of genes and quantitative trait loci (QTLs) associated with major stress tolerance traits have also been discussed. By providing a comprehensive synthesis of existing knowledge, this study offers valuable insights for researchers, policymakers, and stakeholders engaged in efforts to promote sustainable agriculture, enhance food and nutrition security, and mitigate the impacts of climate change.
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  • 文章类型: Journal Article
    植物暴露在无数的压力下,源于非生物和生物来源,严重威胁农业生产力。作物产量低,再加上全球人口负担导致优质食品的稀缺,加剧贫困等社会经济问题,饥饿,和营养不良。传统的产生抗逆植物的育种方法是耗时的,限制遗传多样性,对于高产作物的持续生产来说是不可持续的。近年来,高通量的使用,基因组编辑(GE)技术彻底改变了作物改良范式,为农业发展带来更大的前景。在这些工具中,簇状规则间隔的短回文重复(CRISPR),及其相关的核酸酶蛋白Cas9作为一项突破性的技术出现,允许精确敲除(KO),上调,和下调靶基因表达。除了它的高功效和速度,这种可编程的核酸酶提供了特殊的特异性和最小的脱靶效应。在这里,我们的目的是回顾CRISPR/Cas9基因组编辑工具在植物中产生抗环境胁迫能力方面的最新发现。
    Plants are exposed to a myriad of stresses, stemming from abiotic and biotic sources, significantly threatening agricultural productivity. The low crop yield, coupled with the global burden of population has resulted in the scarcity of quality food, exacerbating socio-economic issues like poverty, hunger, and malnutrition. Conventional breeding methods for the generation of stress-tolerant plants are time-consuming, limit genetic diversity, and are not sustainable for the consistent production of high-yielding crops. In recent years, the use of high-throughput, genome editing (GE) technique has revolutionized the crop-improvement paradigm, ushering greater prospects for agricultural progress. Among these tools, the Clustered regularly interspaced short palindromic repeat (CRISPR), and its associated nuclease protein Cas9, have appeared as a ground-breaking technology, allowing precise knockout (KO), upregulation, and downregulation of target gene expression. Apart from its high efficacy and speed, this programmable nuclease offers exceptional specificity with minimal off-target effects. Here in, we aim to review the latest findings on the application of the CRISPR/Cas9 genome editing tool for generating resilience in plants against environmental stresses.
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  • 文章类型: Journal Article
    基因工程已成为开发气候适应作物和环境可持续解决方案的基本要素,以应对日益增长的全球粮食安全需求。使用CRISPR/Cas[簇状调节间隔短回文重复序列(CRISPR)相关蛋白(Cas)]技术进行基因组编辑正在应用于各种生物体,包括植物。这种技术由于其高度的特异性而变得流行,有效性,生产成本低。因此,这项技术有可能彻底改变农业,并为全球粮食安全做出贡献。在过去的几年里,在开发高产方面的应用越来越努力,营养丰富,抗病,和耐胁迫的“作物”,水果,和蔬菜。Cas蛋白,如Cas9,Cas12,Cas13和Cas14等,具有独特的体系结构,并已用于创建新的遗传工具,以改善对农业重要的特征。Cas的多功能性加速了基因组分析,并促进了使用CRISPR/Cas来操纵和改变不同生物体细胞中的核酸序列。这篇综述提供了CRISPR技术的发展,探索了其机制,并将其与传统育种和转基因方法进行了对比,以提高胁迫耐受性的不同方面。我们还讨论了CRISPR/Cas系统,并探索了目前已知存在的三种Cas蛋白:Cas12、Cas13和Cas14,以及它们产生无外源DNA或非转基因作物的潜力,这些作物可以很容易地在大多数国家进行商业化调控。
    Genetic engineering has become an essential element in developing climate-resilient crops and environmentally sustainable solutions to respond to the increasing need for global food security. Genome editing using CRISPR/Cas [Clustered regulatory interspaced short palindromic repeat (CRISPR)-associated protein (Cas)] technology is being applied to a variety of organisms, including plants. This technique has become popular because of its high specificity, effectiveness, and low production cost. Therefore, this technology has the potential to revolutionize agriculture and contribute to global food security. Over the past few years, increasing efforts have been seen in its application in developing higher-yielding, nutrition-rich, disease-resistant, and stress-tolerant \"crops\", fruits, and vegetables. Cas proteins such as Cas9, Cas12, Cas13, and Cas14, among others, have distinct architectures and have been used to create new genetic tools that improve features that are important for agriculture. The versatility of Cas has accelerated genomic analysis and facilitated the use of CRISPR/Cas to manipulate and alter nucleic acid sequences in cells of different organisms. This review provides the evolution of CRISPR technology exploring its mechanisms and contrasting it with traditional breeding and transgenic approaches to improve different aspects of stress tolerance. We have also discussed the CRISPR/Cas system and explored three Cas proteins that are currently known to exist: Cas12, Cas13, and Cas14 and their potential to generate foreign-DNA-free or non-transgenic crops that could be easily regulated for commercialization in most countries.
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  • 文章类型: Journal Article
    诱变效果和效率是决定诱变育种成功与否的最重要因素,一种快速增强作物多样性的连贯工具。这项研究是在旁遮普邦可爱专业大学的农业研究农场进行的,印度,在2023年。实验设计遵循随机完全区组设计(RCBD),重复三次。该实验旨在评估三种化学诱变剂的作用,叠氮化钠(SA),甲基磺酸乙酯(EMSs),和甲磺酸甲酯(MMS),在三种不同的浓度(0.2%,0.4%,和0.6%),在SL958和SL744大豆品种中选择产量最高的突变体。通过SPSS软件(版本22)使用双向ANOVA检验收集和分析数据,并且使用Duncan的多范围检验(DMRT)在5%的显著性水平下分离平均值。在这两个品种之间,在SL958(0.4%SA)中记录了最高的种子发芽率(76.0%幼苗/地块),与对照相比,在0.6%的MMS中观察到最低(30.33%的幼苗/地块)(播种后10天,SL744和SL958中分别为53%和76%,分别)。播种几周后,在SL958(0.4%SA)中观察到平均植物高度较高(37.84±1.32cm),在SL744(0.6%SA)中观察到较低(20.58±0.30cm),与对照组相比(SL958:26.09±0.62cm和SL744:27.48±0.74cm)。与对照(SL744180.00±1.63和SL958160.73±1.05)相比,SL958(0.4%SA)中的平均叶片计数最高(234.33±3.09四叶片/植物),而在0.6%MMS中最低(87叶片/植物)。SL958和SL744M1植物中记录的最高总叶面积分别为3625.8±1.43cm2和2311.03±3.65cm2。用0.4%SA处理的SL958品种的种子,与通过EMS处理获得的窄五角叶片相比,产生了具有宽叶基部和最大产量(277.55±1.37豆荚/株)的四角叶片。同时,在SL744品种中,与对照(SL744164.33±8.58和SL958229.86±0.96)相比,相同的处理导致了四角叶片的产量相对较低,为206.54±23.47豆荚/植物。在SL958(0.4%SA)M2种子中记录到最高的蛋白质含量(47.04±0.87%TSP),其次是在SL744(0.4%SA)M2种子中的46.14±0.64%TSP含量。而最低含量(38.13±0.81%TSP)在SL958(0.6%MMS)中发现。对于脂质和纤维含量记录了类似的观察结果。SL958中的0.4%SA处理被证明可以有效地产生最高的叶面积(四叶片)和M1(突变后的第一代)植物的合理产量。
    Mutagenic effectiveness and efficiency are the most important factors determining the success of mutation breeding, a coherent tool for quickly enhancing diversity in crops. This study was carried out at Lovely Professional University\'s agricultural research farm in Punjab, India, during the year 2023. The experimental design followed a randomized complete block design (RCBD) with three replications. The experiment aimed to assess the effect of three chemical mutagens, sodium azide (SA), ethyl methyl sulphonates (EMSs), and methyl methane sulfonate (MMS), at three different concentrations (0.2%, 0.4%, and 0.6%), in SL958 and SL744 soybean varieties to select the mutant exhibiting the highest yield. The data were collected and analysed using a two-way ANOVA test through SPSS software (version 22), and the means were separated using Duncan\'s multiple range test (DMRT) at the 5% level of significance. Between the two varieties, the highest seed germination percentage (76.0% seedlings/plot) was recorded in SL958 (0.4% SA), while the lowest (30.33% seedlings/plot) was observed in 0.6% MMS as compared to the control (53% and 76% in SL744 and SL958 at 10 days after sowing, respectively). Several weeks after sowing, the average plant height was observed to be higher (37.84 ± 1.32 cm) in SL958 (0.4% SA) and lower (20.58 ± 0.30 cm) in SL744 (0.6% SA), as compared to the controls (SL958: 26.09 ± 0.62 cm and SL744: 27.48 ± 0.74 cm). The average leaf count was the highest (234.33 ± 3.09 tetrafoliate leaves/plant) in SL958 (0.4% SA) while it was the lowest (87 leaves/plant) in 0.6% MMS as compared to the control (SL744 180.00 ± 1.63 and SL958 160.73 ± 1.05). The highest total leaf areas recorded in the SL958 and SL744 M1plants were 3625.8 ± 1.43 cm2 and 2311.03 ± 3.65 cm2, respectively. Seeds of the SL958 variety treated with 0.4% SA resulted in the development of tetrafoliate leaves with a broad leaf base and the maximum yield (277.55 ± 1.37 pods/plant) compared to the narrow pentafoliate leaves obtained through the treatment with EMS. Meanwhile, in the SL744 variety, the same treatment led to tetrafoliate leaves with a comparatively lower yield of 206.54 ± 23.47 pods/plant as compared to the control (SL744 164.33 ± 8.58 and SL958 229.86 ± 0.96). The highest protein content (47.04 ± 0.87% TSP) was recorded in the SL958 (0.4% SA) M2 seeds followed by a content of 46.14 ± 0.64% TSP in the SL744 (0.4% SA) M2 seeds, whereas the lowest content (38.13 ± 0.81% TSP) was found in SL958 (0.6% MMS). Similar observations were recorded for the lipid and fibre content. The 0.4% SA treatment in SL958 proved to be efficient in generating the highest leaf area (tetrafoliate leaves) and a reasonable yield of M1 (the first generation after mutation) plants.
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  • 文章类型: Journal Article
    Finlay-Wilkinson回归是在植物育种和作物品种测试中建模基因型-环境相互作用的流行方法。当环境是随机因素时,这个模型可以被铸造为因子-分析方差-协方差结构,暗示随机潜在环境变量的回归。本文回顾了此类模型,重点介绍了它们在多环境试验分析中的使用,目的是在目标环境人群中进行预测。我们研究了随机效应和固定效应假设的含义,从基本的方差分析模型开始,然后转向因子分析模型,并考虑过渡到涉及可观察环境协变量的模型,与具有潜在环境变量的模型相比,它有望提供更准确和更有针对性的预测。
    Finlay-Wilkinson regression is a popular method for modeling genotype-environment interaction in plant breeding and crop variety testing. When environment is a random factor, this model may be cast as a factor-analytic variance-covariance structure, implying a regression on random latent environmental variables. This paper reviews such models with a focus on their use in the analysis of multi-environment trials for the purpose of making predictions in a target population of environments. We investigate the implication of random versus fixed effects assumptions, starting from basic analysis-of-variance models, then moving on to factor-analytic models and considering the transition to models involving observable environmental covariates, which promise to provide more accurate and targeted predictions than models with latent environmental variables.
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  • 文章类型: Journal Article
    许多非洲国家无法满足其不断增长的人口的粮食需求,气候变化和疾病爆发使情况更加恶化。如果不采取有效措施提供更多粮食,这一粮食不安全问题可能会导致一场规模巨大的危机。因此,利用生物技术改善现有作物品种对生物和非生物胁迫的耐受性或抗性,对于增加作物产量至关重要。为了优化作物生产,一些非洲国家已经实施了充分利用这一创新技术的战略。例如,尼日利亚政府实施了国家生物技术政策,以促进能力建设,研究,二十多年来,生物资源开发和生物技术产品的商业化。几个政府部门,研究中心,大学,和机构共同努力实施这项政策,导致一些转基因作物向农民种植和商业化,这是一项重大成就。然而,转基因作物仅被带到尼日利亚进行密闭田间试验;转基因作物的制造发生在国外。这可能导致了对压力团体的怀疑,并鼓励生物技术作为外来技术的支持者。同样,这也可能是阻碍其他非洲国家采用生物技术产品的根本问题。因此,非洲大学有必要发展生物技术各个方面的能力,不断培训土著科学家,他们能够产生针对解决各自国家特有问题的创新想法。因此,本研究旨在以尼日利亚为例,确定基因工程和基因组编辑对实现非洲粮食安全的作用。在我们看来,生物技术方法不仅将补充传统的育种方法,以追求作物改良,但它仍然是解决阻碍最佳作物生产的具体问题的可行和可持续手段。此外,我们建议金融机构向新企业提供低息贷款。为了促进生物技术产品的增长,特别是通过分子农业创造就业机会和收入。
    Many African countries are unable to meet the food demands of their growing population and the situation is worsened by climate change and disease outbreaks. This issue of food insecurity may lead to a crisis of epic proportion if effective measures are not in place to make more food available. Thus, deploying biotechnology towards the improvement of existing crop varieties for tolerance or resistance to both biotic and abiotic stresses is crucial to increasing crop production. In order to optimize crop production, several African countries have implemented strategies to make the most of this innovative technology. For example, Nigerian government has implemented the National Biotechnology Policy to facilitate capacity building, research, bioresource development and commercialization of biotechnology products for over two decades. Several government ministries, research centers, universities, and agencies have worked together to implement the policy, resulting in the release of some genetically modified crops to farmers for cultivation and Commercialization, which is a significant accomplishment. However, the transgenic crops were only brought to Nigeria for confined field trials; the manufacturing of the transgenic crops took place outside the country. This may have contributed to the suspicion of pressure groups and embolden proponents of biotechnology as an alien technology. Likewise, this may also be the underlying issue preventing the adoption of biotechnology products in other African countries. It is therefore necessary that African universities develop capacity in various aspects of biotechnology, to continuously train indigenous scientists who can generate innovative ideas tailored towards solving problems that are peculiar to respective country. Therefore, this study intends to establish the role of genetic engineering and genome editing towards the achievement of food security in Africa while using Nigeria as a case study. In our opinion, biotechnology approaches will not only complement conventional breeding methods in the pursuit of crop improvements, but it remains a viable and sustainable means of tackling specific issues hindering optimal crop production. Furthermore, we suggest that financial institutions should offer low-interest loans to new businesses. In order to promote the growth of biotechnology products, especially through the creation of jobs and revenues through molecular farming.
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  • 文章类型: Journal Article
    基因组编辑是一种有前途的技术,已广泛用于基本基因功能研究和性状改善。同时,计算能力和大数据的指数增长促进了机器学习在生物学研究中的应用。在这方面,机器学习在基因组编辑系统的完善和作物改良方面显示出巨大的潜力。这里,我们回顾了机器学习在基因组编辑优化方面的进展,重点放在编辑效率和特异性增强上。此外,我们展示了机器学习如何连接基因组编辑和作物育种,通过准确的关键位点检测和指导RNA设计。最后,我们讨论了这两种技术在作物改良中的当前挑战和前景。通过将先进的基因组编辑技术与机器学习相结合,未来作物育种的进展将进一步加快。
    Genome editing is a promising technique that has been broadly utilized for basic gene function studies and trait improvements. Simultaneously, the exponential growth of computational power and big data now promote the application of machine learning for biological research. In this regard, machine learning shows great potential in the refinement of genome editing systems and crop improvement. Here, we review the advances of machine learning to genome editing optimization, with emphasis placed on editing efficiency and specificity enhancement. Additionally, we demonstrate how machine learning bridges genome editing and crop breeding, by accurate key site detection and guide RNA design. Finally, we discuss the current challenges and prospects of these two techniques in crop improvement. By integrating advanced genome editing techniques with machine learning, progress in crop breeding will be further accelerated in the future.
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  • 文章类型: Journal Article
    本研究使用16SrRNA基因测序提供了黄麻内生和根际细菌的序列数据集。首先对植物样品进行表面灭菌,并使用Quick-DNA™真菌/细菌Miniprep试剂盒从土壤和黄麻根和茎中提取细菌的DNA。扩增纯化的DNA并使用正向和反向引物进行聚合酶链式反应。PCR产物在应用生物系统ABI3500XL遗传分析仪(应用生物系统,ThermoFisherScientific)。使用BioEdit版本7.2.5然后在NCBI上BLAST分析序列。可识别的细菌包括根瘤菌,水果柠檬酸杆菌RZS23(登录号:CP024673.1),内生细菌,蜡状芽孢杆菌EDR23(登录号:LN890242.1),和MorganellamorganiiEDS23(登录号:KR094121.1)。这些细菌表现出的植物生长促进特性表明了它们作为生物接种剂的未来探索。
    This study provides sequence datasets of endophytic and rhizobacteria of jute using 16S rRNA gene sequencing. The plant samples were first surface sterilized and DNA of the bacteria from soil and jute roots and stem was extracted using Quick-DNA™ Fungal/Bacterial Miniprep Kit. The purified DNA was amplified and subjected to polymerase chain reaction using forward and reverse primers. The PCR products were sequenced on Applied Biosystems ABI 3500XL Genetic Analyser (Applied Biosystems, ThermoFisher Scientific). The sequences were analyzed using BioEdit version 7.2.5 and then BLAST on NCBI. The identifiable bacteria include the rhizobacteria, Citrobacter fruendii RZS23 (accession number: CP024673.1), endophytic bacteria, Bacillus cereus EDR23 (accession number: LN890242.1), and Morganella morganii EDS23 (accession number: KR094121.1). The plant growth-promoting traits exhibited by these bacteria suggest their future exploration as bioinoculants.
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  • 文章类型: Journal Article
    14-3-3蛋白质,普遍存在于真核细胞中,是参与大量细胞过程的调节蛋白。在植物中,它们已经在新陈代谢的背景下进行了研究,发展,和应激反应。最近的研究强调了14-3-3蛋白在调节植物免疫中的关键作用。14-3-3蛋白调节免疫反应的能力主要归因于它们作为相互作用中心的功能。介导蛋白质-蛋白质相互作用,从而调节其结合伴侣的活性和整体功能。这里,我们揭示了14-3-3蛋白质如何促进植物防御机制,它们与植物免疫级联成分相互作用的含义,以及将这些知识用于作物改良策略的潜力。
    14-3-3 proteins, ubiquitously present in eukaryotic cells, are regulatory proteins involved in a plethora of cellular processes. In plants, they have been studied in the context of metabolism, development, and stress responses. Recent studies have highlighted the pivotal role of 14-3-3 proteins in regulating plant immunity. The ability of 14-3-3 proteins to modulate immune responses is primarily attributed to their function as interaction hubs, mediating protein-protein interactions and thereby regulating the activity and overall function of their binding partners. Here, we shed light on how 14-3-3 proteins contribute to plant defense mechanisms, the implications of their interactions with components of plant immunity cascades, and the potential for leveraging this knowledge for crop improvement strategies.
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  • 文章类型: Journal Article
    结论:这篇综合综述强调了基因组编辑在植物生殖生物学中的应用,包括与之相关的最新进展和挑战。基因组编辑(GE)是一项强大的技术,有可能通过实现高效,加速作物改良。精确,和植物基因组的快速工程。在过去的十年里,这项技术已经从使用大范围核酸酶(归巢核酸内切酶)迅速发展起来,锌指核酸酶,转录激活因子样效应核酸酶使用成簇的规则间隔短回文重复序列(CRISPR)/CRISPR相关蛋白(CRISPR/Cas),它在最近一段时间已经成为一种流行的GE工具,并已被广泛用于几种生物,包括植物。GE已成功用于几种作物,以改善植物的繁殖特性。改善作物的繁殖特性对于作物产量和确保世界粮食供应至关重要。在这次审查中,我们讨论了GE在植物生殖生物学各个方面的应用,包括其在单倍体诱导中的潜在应用,无融合生殖,单性结实,雄性不育系的发展,和自我不相容性的调节。我们还讨论了该技术用于作物改良的当前挑战和未来前景,专注于植物繁殖。
    CONCLUSIONS: This comprehensive review underscores the application of genome editing in plant reproductive biology, including recent advances and challenges associated with it. Genome editing (GE) is a powerful technology that has the potential to accelerate crop improvement by enabling efficient, precise, and rapid engineering of plant genomes. Over the last decade, this technology has rapidly evolved from the use of meganucleases (homing endonucleases), zinc-finger nucleases, transcription activator-like effector nucleases to the use of clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein (CRISPR/Cas), which has emerged as a popular GE tool in recent times and has been extensively used in several organisms, including plants. GE has been successfully employed in several crops to improve plant reproductive traits. Improving crop reproductive traits is essential for crop yields and securing the world\'s food supplies. In this review, we discuss the application of GE in various aspects of plant reproductive biology, including its potential application in haploid induction, apomixis, parthenocarpy, development of male sterile lines, and the regulation of self-incompatibility. We also discuss current challenges and future prospects of this technology for crop improvement, focusing on plant reproduction.
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