Designing Future Crops: Genomics-Assisted Breeding Comes of Age

Trends in Plant Science, Год журнала: 2021, Номер 26(6), С. 631 - 649

Опубликована: Апрель 21, 2021

Availability of reference genomes and genome-wide surveys on comprehensive diversity panels pave the way to associate allelic variation with phenotypes.Methods are now available evaluate genetic worth vast resources archived in gene banks streamline application these crop improvement programs.Precise genome editing technologies concert enhanced trait architectures enable innovative solutions engineer complex variation.High-throughput phenotyping methods beginning alleviate challenge accurate, precise, large-scale measurements plant performance.Optimized speed breeding protocols remain crucial accelerating advance when applied genomic approaches.Sustaining gains from seeks fast-tracking exploitation minor effect alleles, accumulation favorable purging deleterious alleles. Over past decade, genomics-assisted (GAB) has been instrumental harnessing potential modern characterizing exploiting for germplasm enhancement cultivar development. Sustaining GAB future (GAB 2.0) will rely upon a suite new approaches that fast-track targeted manipulation creating novel facilitate their rapid efficient incorporation programs. Genomic strategies optimize beneficial alleles be indispensable designing crops. In coming decades, 2.0 is expected play role more climate-smart cultivars higher nutritional value cost-effective timely manner. Ensuring sustainable increase global food production finite an increasing human population great challenge. wake enormous advances, 15 years back we proposed concept [1.Varshney R.K. et al.Genomics-assisted improvement.Trends Plant Sci. 2005; 10: 621-630Abstract Full Text PDF PubMed Scopus (392) Google Scholar]. Interestingly, proposition coincided release high-quality sequence assembly rice (Oryza sativa), representing first any [2.International Rice Genome Sequencing Project The map-based genome.Nature. 436: 793-800Crossref (2692) Subsequently, array tools have become applications (Table 1). Parallel advancements technologies, designs based multi-parent synthetic populations were implemented discovery impart benefits both association mapping linkage analysis, such as diversity, controlled structure, greater power quantitative locus (QTL) detection improved accuracy [3.Kover P.X. al.A multiparent advanced generation inter-cross fine-map traits Arabidopsis thaliana.PLoS Genet. 2009; 5e1000551Crossref (361) Scholar,4.Yu J. al.Genetic design statistical nested maize.Genetics. 2008; 178: 539-551Crossref (627) Scholar].Table 1Genome Resources Ten Topmost Food CropsaAbbreviation: n.d., no data.CropArea (mha)bSource: http://www.fao.org/faostat/en/#data/QC.Production (mmt)bSource: http://www.fao.org/faostat/en/#data/QC.Assembled (Mb)SNP arrayGenomic databasesGene expression atlasPan-genomeWheat(Triticum aestivum)215.9765.714 500[61.International Wheat Consortium (IWGSC) Shifting limits wheat research using fully annotated genome.Science. 2018; 361eaar7191Crossref (891) Scholar]Wheat 9K iSelect [62.Cavanagh C.R. al.Genome-wide comparative uncovers multiple targets selection hexaploid landraces cultivars.Proc. 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Open table tab characterization underlying important agronomic processes. this article, discuss products delivered opportunities latest innovations offer sustain recent decades [i.e., or (GB)]. We highlight broad create selection. years, expedited timelines progress across range species, than 130 publicly bred different crops [5.Vogel Marker-Assisted Selection: Biotechnology Breeding Without Genetic Engineering. Greenpeace International, 2014Google majority noteworthy by variety programs include having elevated levels against diseases bacterial blight blast rust aestivum). Among biotic stresses, tolerance submergence, salinity, drought remained key target GAB. similar impact witnessed quality several (Box 1).Box 1Key Products Delivered Genomics-Assisted Some CropsGAB Biotic Stress ResistanceSimply inherited under influence strong-effect QTL, disease resistance, most preferred introgression approaches. 'Improved Samba Mahsuri' (ISM) carrying (BB) (Xanthomonas oryzae pv. oryzae) genes (Xa21, xa13, xa5) [132.Sundaram R.M. al.Marker assisted Mahsuri, elite indica variety.Euphytica. 160: 411-422Crossref Two major (Magnaporthe (Pi-2 Pi-54) BB (Xa38) further stacked 'ISM' [133.Madhavi K.R. background elite, resistant variety, Mahsuri.Euphytica. 212: 331-342Crossref (8) Scholar,134.Yugander al.Incorporation Xa38 Improved Mahsuri.PLoS 13e0198260Crossref (14) 'Pusa Basmati 1' pyramided two (Pi2+Pi5) (Pi54+Pi1+Pita) [135.Khanna near-isogenic gene(s) rice.Theor. 128: 1243-1259Crossref (57) version 1121' 6' (Pi2 Pi54) (xa13 Xa21) others [136.Ellur al.Improvement varieties marker backcross breeding.Plant 242: 330-341Crossref Scholar].A DNA improving stress response quality-related (http://maswheat.ucdavis.edu/protocols/index.htm). Examples versions hard red winter (HRWW) 'Jagger' 'Overley' Yr40/Lr57 Lr58, respectively [137.Kuraparthy V. PCR marker-assisted transfer leaf stripe Lr57 Yr40 wheats.Crop 49: 120-126Crossref 'HUW510' Lr34 [138.Vasistha al.Molecular validates spot blotch wheat.Euphytica. 213: 262Crossref (4) pearl millet, 'HHB 67-improved' represented downy mildew 67', which was released commercial cultivation India 2005 (see Rai al. [139.Rai K.N. al.Adaptation germplasm-derived parent millet.Plant Resour. Newsl. 154: 20-24Google Scholar]). Other success stories demonstrating cereal included eyespot (Rhizoctonia cerealis) Pch1, recessive rym4/ rym5 yellow mosaic viruses, mlo (Blumeria graminis f. sp. hordei).Unlike cereals, grain lagged behind terms product delivery; however, genotyping-based selections increasingly embraced For instance, pyramiding cyst nematode (Heterodera glycines) races (2, 3, 14) at USDA-ARS led registration high-yielding genotypes 'JTN 5503', 5303', 'DS 880', 5109' [140.Arelli al.Registration yielding JTN5503.Crop 2723-2724Crossref Scholar, 141.Arelli conventional JTN-4307 nematodes fungal diseases.J. Regist. 192-199Crossref 142.Arelli P.R. Young L.D. Inheritance PI 567516C LY1 infecting cv. Hartwig.Euphytica. 165: 1-4Crossref (19) 143.Smith USDA, ARS, National Program. Germplasm Information Network, 2010Google Similarly, Varshney [144.Varshney al.Marker-assisted region improve popular (Arachis L.).Theor. 127: 1771-1781Crossref (93) obtained set 20 hypogaea) showing yield increased (Puccinia arachidis) transferring susceptible ('ICGV 91114', 'JL 24', 'TAG 24'). chickpea, simultaneous wilt (Fusarium oxysporum ciceris) (Ascochyta rabiei) shown chickpea C 214 [145.Varshney backcrossing introgress Fusarium race 1 Ascochyta 214, chickpea.Plant Genome. 1-11Crossref (77) Scholar].GAB Abiotic ToleranceThe immense utility abiotic exemplified controlling submergence (sub1), salt (Saltol), introgressed them. Sub1 'Swarna', India, within short span 2 [146.Neeraja approach developing submergence-tolerant cultivars.Theor. 2007; 115: 767-776Crossref (276) Vietnam, nearly ten cross OM1490/IR64-Sub1 90–99% revival field conditions [147.Lang N.T. (MAB) Mekong delta.Omonrice. 11-21Google Higher survival rates mega-varieties, including 'Samba (BPT 5204), 'CR 1009' 'Thadokkham (TDK1) Laos, 'BR 11' Bangladesh also evident following QTL-introgression Hasan [148.Hasan backcrossing: useful method improvement.Biotechnol. Equip. 29: 237-254Crossref Scholar]).The Saltol various countries, candidate 1121', 6', 'AS 996', 'BT 7', 'Bacthom 'Q5DB', 'BRRI-Dhan 49' Waziri [149.Waziri al.Saltol salinity rice.Austin. Bioeng. 1-5Google Successful Sub1, Saltol, (Pi2, Pi9), gall midge (Orseolia (Gm1, Gm4) Tapaswini', pyramid (Xa 4, xa5, highly 'Tapaswini', demonstrated [150.Das G. al.Improved Tapaswini four six genes/QTLs, resistance/tolerance stresses 2413Crossref Scholar].Similar above-mentioned examples tolerance, major-effect QTLs 'Sabitri' (a yet drought-susceptible Nepal) yielded variants good type rain-fed areas Nepal countries South Asia [151.Dixit develop drought-tolerant Sabitri, Nepal.Euphytica. 184Crossref (11) availability stable effects facilitated well. 'QTL hotspot' 372' pulse 10216' (https://icar.org.in/content/development-two-superior-chickpea-varieties-genomics-assisted-breeding).GAB Quality TraitsOne breakthroughs plants involves introduction Gpc-B1 (grain protein content) tetra caused creation GPC viz. USA ('Farnum', 'Lassik', 'Westmore', 'Desert King-High Protein'), Canada ('Lillian', 'Somerset', 'Burnside'), Australia (improved 'Wyalkatchem', 'Gladius', 'VR 1128') Mitrofanova Khakimova [152.Mitrofanova O.P. A.G. New content.Russ. 477-487Crossref references therein). variant badh2 Wx basmati 'Manawthukha' (an Myanmar) resulted fragrance intermediate amylose content [153.Yi cooking Myanmar Manawthukha.Field Crops 113: 178-186Crossref By reducing cycles up 3 Chu [154.Chu oleic peanut.Plant 4: 110-117Crossref developed 'Tifguard High O/L' acid resistance. More recently, oil combined late (Phaeoisariopsis personata Berk. & Curtis) [155.Janila fatty desaturase mutant (ahFAD2A ahFAD2B) enhances low containing genotypes.Plant 203-213Crossref (66) Scholar,156.Yaduru Indian foliar SSR backcrossing.Crop 1-15Crossref (5) Resistance Simply bl

Язык: Английский

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5Gs for crop genetic improvement

Current Opinion in Plant Biology, Год журнала: 2020, Номер 56, С. 190 - 196

Опубликована: Янв. 28, 2020

Here we propose a 5G breeding approach for bringing much-needed disruptive changes to crop improvement. These 5Gs are Genome assembly, Germplasm characterization, Gene function identification, Genomic (GB), and editing (GE). In our view, it is important have genome assemblies available each deep collection of germplasm characterized at sequencing agronomic levels identification marker-trait associations superior haplotypes. Systems biology sequencing-based mapping approaches can be used identify genes involved in pathways leading the expression trait, thereby providing diagnostic markers target traits. genes, markers, haplotypes, genome-wide data may utilized GB GE methodologies combination with rapid cycle strategy.

Язык: Английский

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Smart reprograming of plants against salinity stress using modern biotechnological tools

Critical Reviews in Biotechnology, Год журнала: 2022, Номер 43(7), С. 1035 - 1062

Опубликована: Авг. 15, 2022

Climate change gives rise to numerous environmental stresses, including soil salinity. Salinity/salt stress is the second biggest abiotic factor affecting agricultural productivity worldwide by damaging physiological, biochemical, and molecular processes. In particular, salinity affects plant growth, development, productivity. Salinity responses include modulation of ion homeostasis, antioxidant defense system induction, biosynthesis phytohormones osmoprotectants protect plants from osmotic decreasing toxicity augmented reactive oxygen species scavenging. As most crop are sensitive salinity, improving salt tolerance crucial in sustaining global response trigger stress-related genes, proteins, accumulation metabolites cope with adverse consequence Therefore, this review presents an overview plants. We highlight advances modern biotechnological tools, such as omics (genomics, transcriptomics, proteomics, metabolomics) approaches different genome editing tools (ZFN, TALEN, CRISPR/Cas system) for accomplish goal "zero hunger," a sustainable development proposed FAO.

Язык: Английский

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Drought Stress in Grain Legumes: Effects, Tolerance Mechanisms and Management

Agronomy, Год журнала: 2021, Номер 11(12), С. 2374 - 2374

Опубликована: Ноя. 23, 2021

Grain legumes are important sources of proteins, essential micronutrients and vitamins for human nutrition. Climate change, including drought, is a severe threat to grain legume production throughout the world. In this review, morpho-physiological, physio-biochemical molecular levels drought stress in described. Moreover, different tolerance mechanisms, such as morphological, mechanisms legumes, also reviewed. various management approaches mitigating effects assessed. Reduced leaf area, shoot root growth, chlorophyll content, stomatal conductance, CO2 influx, nutrient uptake translocation, water-use efficiency (WUE) ultimately affect yields. The yield loss varies from species species, even variety within depending upon severity several other factors, phenology, soil textures agro-climatic conditions. Closure stomata leads an increase temperature by reducing transpiration rate, and, so, plant faces another under stress. biosynthesis reactive oxygen (ROS) most detrimental effect Legumes can adapt changing their morphology, physiology mechanism. Improved system architecture (RSA), reduced number size leaves, stress-induced phytohormone, closure, antioxidant defense system, solute accumulation (e.g., proline) altered gene expression play crucial role tolerance. Several agronomic, breeding both conventional molecular, biotechnological used practices developing drought-tolerant without affecting crop yield. Exogenous application plant-growth regulators (PGRs), osmoprotectants inoculation Rhizobacteria arbuscular mycorrhizal fungi promotes legumes. Genome-wide association studies (GWASs), genomic selection (GS), marker-assisted (MAS), OMICS-based technology CRISPR/Cas9 make work easy save time developmental cycle get resistant drought-resistant chickpea, faba bean, common bean pigeon pea, were developed institutions. Drought-tolerant transgenic example, chickpeas, introgressing desired genes through approaches. quantitative trait loci (QTLs), candidate occupying traits, identified but not all proper implementation. Hence, more research should be conducted improve traits avoiding losses during drought.

Язык: Английский

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Modern plant biotechnology as a strategy in addressing climate change and attaining food security

Agriculture & Food Security, Год журнала: 2022, Номер 11(1)

Опубликована: Апрель 3, 2022

Abstract Global warming causes a range of negative impacts on plants especially due to rapid changes in temperatures, alterations rainfall patterns, floods or drought conditions, and outbreaks pests diseases. These, turn, affect crop production reducing the quality quantity agricultural produce. Climatic extremes high population growth significantly increase world’s food demand. Therefore, fulfilling goal attaining security for present future generations is prime importance. Biotechnology enables creating dramatic crops withstand stress which difficult attain using conventional breeding approaches. It viable tool used improve production. The development biotechnological approaches such as genetic engineering, genome editing, RNA-mediated gene silencing armored with next-generation sequencing, mapping have paved way precise faster modifications plants. Such intensive efforts are currently underway desirable cultivars meet demand support sustainable productivity climate change adaptation.

Язык: Английский

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Features and applications of haplotypes in crop breeding

Communications Biology, Год журнала: 2021, Номер 4(1)

Опубликована: Ноя. 4, 2021

Abstract Climate change with altered pest-disease dynamics and rising abiotic stresses threatens resource-constrained agricultural production systems worldwide. Genomics-assisted breeding (GAB) approaches have greatly contributed to enhancing crop efficiency delivering better varieties. Fast-growing capacity affordability of DNA sequencing has motivated large-scale germplasm projects, thus opening exciting avenues for mining haplotypes applications. This review article highlights ways mine apply them complex trait dissection in GAB including haplotype-GWAS, haplotype-based breeding, haplotype-assisted genomic selection. Improvement strategies that efficiently deploy superior hasten progress will be key safeguarding global food security.

Язык: Английский

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Role of phytohormones in regulating cold stress tolerance: Physiological and molecular approaches for developing cold-smart crop plants

Plant Stress, Год журнала: 2023, Номер 8, С. 100152 - 100152

Опубликована: Март 23, 2023

Global climate variations induce extreme temperatures and significantly decrease crop production, leading to food insecurity worldwide. Temperature extremes (mainly cold stress (CS): chilling 0–15 °C freezing <0 temperatures) limit plant growth development severely affect physiology biochemical molecular processes. Subsequently, plants execute numerous endogenous mechanisms, including phytohormone biosynthesis (i.e., abscisic acid, cytokinins, jasmonic salicylic gibberellic brassinosteroids, indole-3-acetic ethylene, strigolactones) tolerate stressful environments. Phytohormones are vital for managing diverse events associated with under CS as important signaling substances that dynamically arbitrate many physiological, biochemical, responses through a stress-responsive regulatory cascade. This review briefly appraises adaptation mechanisms then comprehensively reports on the crucial role of several phytohormones in adjusting response acclimation. We also discuss phytohormone-regulated genes controlling tolerance their genetic engineering combat species develop future CS-smart plants. The potential state-of-the-art omics approaches help identify phytohormone-induced novel genes, metabolites, metabolic pathways is discussed. In short, we conclude exogenous application phytohormones-regulated promising techniques developing cold-smart

Язык: Английский

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Prospects of microgreens as budding living functional food: Breeding and biofortification through OMICS and other approaches for nutritional security

Frontiers in Genetics, Год журнала: 2023, Номер 14

Опубликована: Янв. 25, 2023

Nutrient deficiency has resulted in impaired growth and development of the population globally. Microgreens are considered immature greens (required light for photosynthesis growing medium) developed from seeds vegetables, legumes, herbs, cereals. These “living superfood/functional food” due to presence chlorophyll, beta carotene, lutein, minerals like magnesium (Mg), Potassium (K), Phosphorus (P), Calcium (Ca). rich at nutritional level contain several phytoactive compounds (carotenoids, phenols, glucosinolates, polysterols) that helpful human health on Earth space their anti-microbial, anti-inflammatory, antioxidant, anti-carcinogenic properties. can be used as plant-based nutritive vegetarian foods will fruitful a nourishing constituent food industryfor garnish purposes, complement flavor, texture, color salads, soups, flat-breads, pizzas, sandwiches (substitute lettuce tacos, sandwich, burger). Good handling practices may enhance microgreens’stability, storage, shelf-life under appropriate conditions, including light, temperature, nutrients, humidity, substrate. Moreover, substrate liquid solution (hydroponic system) or solid medium (coco peat, coconut fiber, coir dust husks, sand, vermicompost, sugarcane filter cake, etc. ) based variety microgreens. However integrated multiomics approaches alongwith nutriomics foodomics explored utilized identify breed most potential microgreen genotypes, biofortify increasing content (macro-elements:K, Ca Mg; oligo-elements: Fe Zn antioxidant activity) microgreens related other traits viz., fast growth, good values, high germination percentage, through implementation includes genomics, transcriptomics, sequencing-based approaches, molecular breeding, machine learning, nanoparticles, seed priming strategiesetc.

Язык: Английский

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Developing future heat-resilient vegetable crops

Functional & Integrative Genomics, Год журнала: 2023, Номер 23(1)

Опубликована: Янв. 24, 2023

Climate change seriously impacts global agriculture, with rising temperatures directly affecting the yield. Vegetables are an essential part of daily human consumption and thus have importance among all agricultural crops. The population is increasing daily, so there a need for alternative ways which can be helpful in maximizing harvestable yield vegetables. increase temperature affects plants' biochemical molecular processes; having significant impact on quality Breeding climate-resilient crops good yields takes long time lots breeding efforts. However, advent new omics technologies, such as genomics, transcriptomics, proteomics, metabolomics, efficiency efficacy unearthing information pathways associated high-temperature stress resilience has improved many vegetable Besides omics, use genomics-assisted approaches gene editing speed allow creation modern cultivars that more resilient to high temperatures. Collectively, these will shorten create release novel varieties meet growing demands productivity quality. This review discusses effects heat vegetables highlights recent research focus how genome produce temperature-resilient efficiently faster.

Язык: Английский

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Novel Strategies for Designing Climate‐Smart Crops to Ensure Sustainable Agriculture and Future Food Security

Journal of Sustainable Agriculture and Environment, Год журнала: 2025, Номер 4(2)

Опубликована: Март 31, 2025

ABSTRACT To fulfil food and nutritional demand for nine billion people by the mid‐21st century, global production must increase 60% regardless of challenges such as environmental pollution, water scarcity land degradation. Climate change exacerbates frequency intensity biotic abiotic stresses, which, in turn, severely compromise crop yields, jeopardize supply, deteriorate sustainable development goals achieving safety, limit climate‐smart production. Current consumption practices negatively influence environment, posing a major threat to ecosystem human health. Addressing these critical issues achieve agriculture necessitates designing future crops employing cutting‐edge breeding strategies enhanced productivity with minimal footprints. This endeavour requires comprehensive understanding plant stress adaptation, signalling pathways mitigation mechanisms. In this review, we first explain diverse impacts ongoing climate events on Subsequently, outline various tackle change, including agronomic practices, advanced technologies physiological molecular mechanisms tolerance. We also discuss engineering superior tolerance disease resistance nurturing healthy microbial partnerships between plants soil ensure nutrition security current populations amidst mounting challenges.

Язык: Английский

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