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Moroldo M, Blanchet N, Duruflé H, Bernillon S, Berton T, Fernandez O, Gibon Y, Moing A, Langlade NB. Genetic control of abiotic stress-related specialized metabolites in sunflower. BMC Genomics 2024; 25:199. [PMID: 38378469 PMCID: PMC10877922 DOI: 10.1186/s12864-024-10104-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 02/09/2024] [Indexed: 02/22/2024] Open
Abstract
BACKGROUND Abiotic stresses in plants include all the environmental conditions that significantly reduce yields, like drought and heat. One of the most significant effects they exert at the cellular level is the accumulation of reactive oxygen species, which cause extensive damage. Plants possess two mechanisms to counter these molecules, i.e. detoxifying enzymes and non-enzymatic antioxidants, which include many classes of specialized metabolites. Sunflower, the fourth global oilseed, is considered moderately drought resistant. Abiotic stress tolerance in this crop has been studied using many approaches, but the control of specialized metabolites in this context remains poorly understood. Here, we performed the first genome-wide association study using abiotic stress-related specialized metabolites as molecular phenotypes in sunflower. After analyzing leaf specialized metabolites of 450 hybrids using liquid chromatography-mass spectrometry, we selected a subset of these compounds based on their association with previously known abiotic stress-related quantitative trait loci. Eventually, we characterized these molecules and their associated genes. RESULTS We putatively annotated 30 compounds which co-localized with abiotic stress-related quantitative trait loci and which were associated to seven most likely candidate genes. A large proportion of these compounds were potential antioxidants, which was in agreement with the role of specialized metabolites in abiotic stresses. The seven associated most likely candidate genes, instead, mainly belonged to cytochromes P450 and glycosyltransferases, two large superfamilies which catalyze greatly diverse reactions and create a wide variety of chemical modifications. This was consistent with the high plasticity of specialized metabolism in plants. CONCLUSIONS This is the first characterization of the genetic control of abiotic stress-related specialized metabolites in sunflower. By providing hints concerning the importance of antioxidant molecules in this biological context, and by highlighting some of the potential molecular mechanisms underlying their biosynthesis, it could pave the way for novel applications in breeding. Although further analyses will be required to better understand this topic, studying how antioxidants contribute to the tolerance to abiotic stresses in sunflower appears as a promising area of research.
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Affiliation(s)
- Marco Moroldo
- UMR LIPME, INRAE, CNRS, Université de Toulouse, 31326, Castanet Tolosan, France.
| | - Nicolas Blanchet
- UMR LIPME, INRAE, CNRS, Université de Toulouse, 31326, Castanet Tolosan, France
| | - Harold Duruflé
- UMR LIPME, INRAE, CNRS, Université de Toulouse, 31326, Castanet Tolosan, France
- UMR BioForA, INRAE, ONF, Orléans, 45075, France
| | - Stéphane Bernillon
- UMR BFP, INRAE, Université de Bordeaux, 33140, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
- UMR MYCSA, INRAE, 33140, Villenave d'Ornon, France
| | - Thierry Berton
- UMR BFP, INRAE, Université de Bordeaux, 33140, Villenave d'Ornon, France
| | - Olivier Fernandez
- UMR BFP, INRAE, Université de Bordeaux, 33140, Villenave d'Ornon, France
- USC RIBP, INRAE, Université de Reims, 51100, Reims, France
| | - Yves Gibon
- UMR BFP, INRAE, Université de Bordeaux, 33140, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Annick Moing
- UMR BFP, INRAE, Université de Bordeaux, 33140, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Nicolas B Langlade
- UMR LIPME, INRAE, CNRS, Université de Toulouse, 31326, Castanet Tolosan, France
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Alseekh S, Karakas E, Zhu F, Wijesingha Ahchige M, Fernie AR. Plant biochemical genetics in the multiomics era. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:4293-4307. [PMID: 37170864 PMCID: PMC10433942 DOI: 10.1093/jxb/erad177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 05/09/2023] [Indexed: 05/13/2023]
Abstract
Our understanding of plant biology has been revolutionized by modern genetics and biochemistry. However, biochemical genetics can be traced back to the foundation of Mendelian genetics; indeed, one of Mendel's milestone discoveries of seven characteristics of pea plants later came to be ascribed to a mutation in a starch branching enzyme. Here, we review both current and historical strategies for the elucidation of plant metabolic pathways and the genes that encode their component enzymes and regulators. We use this historical review to discuss a range of classical genetic phenomena including epistasis, canalization, and heterosis as viewed through the lens of contemporary high-throughput data obtained via the array of approaches currently adopted in multiomics studies.
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Affiliation(s)
- Saleh Alseekh
- Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, Plovdiv, Bulgaria
| | - Esra Karakas
- Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Feng Zhu
- National R&D Center for Citrus Preservation, Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, 430070 Wuhan, China
| | | | - Alisdair R Fernie
- Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, Plovdiv, Bulgaria
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Islam K, Rawoof A, Kumar A, Momo J, Ahmed I, Dubey M, Ramchiary N. Genetic Regulation, Environmental Cues, and Extraction Methods for Higher Yield of Secondary Metabolites in Capsicum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37289974 DOI: 10.1021/acs.jafc.3c01901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Capsicum (chili pepper) is a widely popular and highly consumed fruit crop with beneficial secondary metabolites such as capsaicinoids, carotenoids, flavonoids, and polyphenols, among others. Interestingly, the secondary metabolite profile is a dynamic function of biosynthetic enzymes, regulatory transcription factors, developmental stage, abiotic and biotic environment, and extraction methods. We propose active manipulable genetic, environmental, and extraction controls for the modulation of quality and quantity of desired secondary metabolites in Capsicum species. Specific biosynthetic genes such as Pun (AT3) and AMT in the capsaicinoids pathway and PSY, LCY, and CCS in the carotenoid pathway can be genetically engineered for enhanced production of capsaicinoids and carotenoids, respectively. Generally, secondary metabolites increase with the ripening of the fruit; however, transcriptional regulators such as MYB, bHLH, and ERF control the extent of accumulation in specific tissues. The precise tuning of biotic and abiotic factors such as light, temperature, and chemical elicitors can maximize the accumulation and retention of secondary metabolites in pre- and postharvest settings. Finally, optimized extraction methods such as ultrasonication and supercritical fluid method can lead to a higher yield of secondary metabolites. Together, the integrated understanding of the genetic regulation of biosynthesis, elicitation treatments, and optimization of extraction methods can maximize the industrial production of secondary metabolites in Capsicum.
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Affiliation(s)
- Khushbu Islam
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Abdul Rawoof
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ajay Kumar
- Department of Plant Sciences, School of Biological Sciences, Central University of Kerala, Kasaragod 671316, Kerala, India
| | - John Momo
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ilyas Ahmed
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Meenakshi Dubey
- Department of Biotechnology, Delhi Technological University, New Delhi 110042, India
| | - Nirala Ramchiary
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
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4
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Jimenez-García SN, Garcia-Mier L, Ramirez-Gomez XS, Guevara-Gonzalez RG, Aguirre-Becerra H, Escobar-Ortiz A, Contreras-Medina LM, Garcia-Trejo JF, Vazquez-Cruz MA, Feregrino-Perez AA. Characterization of the Key Compounds of Bell Pepper by Spectrophotometry and Gas Chromatography on the Effects of Induced Stress on the Concentration of Secondary Metabolite. Molecules 2023; 28:molecules28093830. [PMID: 37175241 PMCID: PMC10180469 DOI: 10.3390/molecules28093830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/13/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Sweet peppers are consumed worldwide, and traditional uses have sparked interest in their applications as dietary antioxidants, which can be enhanced in plants using elicitors. These are endowed with phytochemicals with potential health benefits such as antioxidants, bioavailability, and bioaccessibility. The trend in metabolomics shows us chemical fingerprints linking metabolomics, innovative analytical form, and bioinformatics tools. The objective was to evaluate the impact of multiple stress interactions, elicitor concentrations, and electrical conductivity on the concentration of secondary metabolites to relate their response to metabolic pathways through the foliar application of a cocktail of said elicitors in pepper crops under greenhouse conditions. The extracts were analyzed by spectrophotometry and gas chromatography, and it was shown that the PCA analysis identified phenolic compounds and low molecular weight metabolites, confirming this as a metabolomic fingerprint in the hierarchical analysis. These compounds were also integrated by simultaneous gene and metabolite simulants to obtain effect information on different metabolic pathways. Showing changes in metabolite levels at T6 (36 mM H2O2 and 3.6 dS/m) and T7 (0.1 mM SA and 3.6 dS/m) but showing statistically significant changes at T5 (3.6 dS/m) and T8 (0.1 mM SA, 36 mM H2O2, and 3.6 dS/m) compared to T1 (32 dS/m) or control. Six pathways changed significantly (p < 0.05) in stress-induced treatments: aminoacyl t-RNA and valine-leucine-isoleucine biosynthesis, and alanine-aspartate-glutamate metabolism, glycoxylate-dicarboxylate cycle, arginine-proline, and citrate. This research provided a complete profile for the characterization of metabolomic fingerprint of bell pepper under multiple stress conditions.
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Affiliation(s)
- Sandra N Jimenez-García
- Division de Ciencias de la Salud e Ingeniería, Campus Celaya-Salvatierra, C.A. Enfermedades no Transmisibles, Universidad de Guanajuato, Av. Ing. Javier Barros Sierra No. 201 Esq. Baja California, Ejido de Santa Maria del Refugio Celaya, Guanajuato 8140, Mexico
| | - Lina Garcia-Mier
- Departamento de Ciencias de la Salud, Universidad del Valle de México, Campus Querétaro, Blvd, Juriquilla No. 1000 A, Delegación Santa Rosa Jáuregui, Santiago de Querétaro, Querétaro 76230, Mexico
| | - Xóchitl S Ramirez-Gomez
- Division de Ciencias de la Salud e Ingeniería, Campus Celaya-Salvatierra, C.A. Enfermedades no Transmisibles, Universidad de Guanajuato, Av. Ing. Javier Barros Sierra No. 201 Esq. Baja California, Ejido de Santa Maria del Refugio Celaya, Guanajuato 8140, Mexico
| | - Ramon G Guevara-Gonzalez
- Division de Estudios de Posgrado, C.A. Bioingeniería Básica y Aplicada, Facultad de Ingeniería, Universidad Autónoma de Querétaro, C.U. Cerro de las Campanas S/N, Colonia Las Campanas, Santiago de Querétaro, Querétaro 76010, Mexico
| | - Humberto Aguirre-Becerra
- Division de Estudios de Posgrado, C.A. Bioingeniería Básica y Aplicada, Facultad de Ingeniería, Universidad Autónoma de Querétaro, C.U. Cerro de las Campanas S/N, Colonia Las Campanas, Santiago de Querétaro, Querétaro 76010, Mexico
| | - Alexandro Escobar-Ortiz
- Facultad de Química, Universidad Autónoma de Querétaro, C.U. Cerro de las Campanas S/N, Colonia Las Campanas, Santiago de Querétaro, Querétaro 76010, Mexico
| | - Luis M Contreras-Medina
- Division de Estudios de Posgrado, C.A. Bioingeniería Básica y Aplicada, Facultad de Ingeniería, Universidad Autónoma de Querétaro, C.U. Cerro de las Campanas S/N, Colonia Las Campanas, Santiago de Querétaro, Querétaro 76010, Mexico
| | - Juan F Garcia-Trejo
- Division de Estudios de Posgrado, C.A. Bioingeniería Básica y Aplicada, Facultad de Ingeniería, Universidad Autónoma de Querétaro, C.U. Cerro de las Campanas S/N, Colonia Las Campanas, Santiago de Querétaro, Querétaro 76010, Mexico
| | - Moises A Vazquez-Cruz
- Departamento de Investigación y Desarrollo, Koppert Mexico, Circuito el Marques Nte. 82, Parque industrial El Marqués, Santiago de Querétaro, Querétaro 76246, Mexico
| | - Ana A Feregrino-Perez
- Division de Estudios de Posgrado, C.A. Bioingeniería Básica y Aplicada, Facultad de Ingeniería, Universidad Autónoma de Querétaro, C.U. Cerro de las Campanas S/N, Colonia Las Campanas, Santiago de Querétaro, Querétaro 76010, Mexico
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Rosa-Martínez E, Bovy A, Plazas M, Tikunov Y, Prohens J, Pereira-Dias L. Genetics and breeding of phenolic content in tomato, eggplant and pepper fruits. FRONTIERS IN PLANT SCIENCE 2023; 14:1135237. [PMID: 37025131 PMCID: PMC10070870 DOI: 10.3389/fpls.2023.1135237] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 03/07/2023] [Indexed: 06/19/2023]
Abstract
Phenolic acids and flavonoids are large groups of secondary metabolites ubiquitous in the plant kingdom. They are currently in the spotlight due to the numerous health benefits associated with their consumption, as well as for their vital roles in plant biological processes and in plant-environment interaction. Tomato, eggplant and pepper are in the top ten most consumed vegetables in the world, and their fruit accumulation profiles have been extensively characterized, showing substantial differences. A broad array of genetic and genomic tools has helped to identify QTLs and candidate genes associated with the fruit biosynthesis of phenolic acids and flavonoids. The aim of this review was to synthesize the available information making it easily available for researchers and breeders. The phenylpropanoid pathway is tightly regulated by structural genes, which are conserved across species, along with a complex network of regulatory elements like transcription factors, especially of MYB family, and cellular transporters. Moreover, phenolic compounds accumulate in tissue-specific and developmental-dependent ways, as different paths of the metabolic pathway are activated/deactivated along with fruit development. We retrieved 104 annotated putative orthologues encoding for key enzymes of the phenylpropanoid pathway in tomato (37), eggplant (29) and pepper (38) and compiled 267 QTLs (217 for tomato, 16 for eggplant and 34 for pepper) linked to fruit phenolic acids, flavonoids and total phenolics content. Combining molecular tools and genetic variability, through both conventional and genetic engineering strategies, is a feasible approach to improve phenolics content in tomato, eggplant and pepper. Finally, although the phenylpropanoid biosynthetic pathway has been well-studied in the Solanaceae, more research is needed on the identification of the candidate genes behind many QTLs, as well as their interactions with other QTLs and genes.
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Affiliation(s)
- Elena Rosa-Martínez
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain
| | - Arnaud Bovy
- Plant Breeding, Wageningen University & Research, Wageningen, Netherlands
| | - Mariola Plazas
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain
| | - Yury Tikunov
- Plant Breeding, Wageningen University & Research, Wageningen, Netherlands
| | - Jaime Prohens
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain
| | - Leandro Pereira-Dias
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain
- Faculdade de Ciências, Universidade do Porto, Porto, Portugal
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6
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Wu Y, Popovsky-Sarid S, Tikunov Y, Borovsky Y, Baruch K, Visser RGF, Paran I, Bovy A. CaMYB12-like underlies a major QTL for flavonoid content in pepper (Capsicum annuum) fruit. THE NEW PHYTOLOGIST 2023; 237:2255-2267. [PMID: 36545937 DOI: 10.1111/nph.18693] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
The regulation of flavonoid biosynthesis is only partially explored in pepper (Capsicum annuum L.). The genetic basis underlying flavonoid variation in pepper fruit was studied. Variation of flavonoids in fruit of a segregating F2 population was studied using LC-MS followed by quantitative trait locus (QTL) analysis. Near-isogenic lines (NILs), BC1 S1 populations, virus-induced gene silenced (VIGS) and transgenic overexpression were used to confirm the QTL and the underlying candidate gene. A major QTL for flavonoid content was found in chromosome 5, and a CaMYB12-like transcription factor gene was identified as candidate gene. Near-isogenic lines (NILs) contrasting for CaMYB12-like confirmed its association with the flavonoid content variation. Virus-induced gene silencing (VIGS) of CaMYB12-like led to a significant decrease in the expression of several flavonoid pathway genes and a drastic decrease in flavonoid levels in silenced fruits. Expression of CaMYB12-like in the tomato slmyb12 mutant led to enhanced levels of several flavonoids in the fruit skin. Introgression of the CaMYB12-like allele into two cultivated varieties also increased flavonoid content in their fruits. A combination of metabolomic, genetic and gene functional analyses led to discovery of CaMYB12-like as a major regulator of flavonoid variation in pepper fruit and demonstrated its potential to breed for high-flavonoid content in cultivated pepper.
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Affiliation(s)
- Yi Wu
- Plant Breeding, Wageningen University and Research, 6708PB, Wageningen, the Netherlands
- Graduate School Experimental Plant Sciences, Wageningen University and Research, 6708PB, Wageningen, the Netherlands
| | - Sigal Popovsky-Sarid
- Institute of Plant Science, Agricultural Research Organization, The Volcani Center, 7534509, Rishon Lezion, Israel
| | - Yury Tikunov
- Plant Breeding, Wageningen University and Research, 6708PB, Wageningen, the Netherlands
| | - Yelena Borovsky
- Institute of Plant Science, Agricultural Research Organization, The Volcani Center, 7534509, Rishon Lezion, Israel
| | | | - Richard G F Visser
- Plant Breeding, Wageningen University and Research, 6708PB, Wageningen, the Netherlands
| | - Ilan Paran
- Institute of Plant Science, Agricultural Research Organization, The Volcani Center, 7534509, Rishon Lezion, Israel
| | - Arnaud Bovy
- Plant Breeding, Wageningen University and Research, 6708PB, Wageningen, the Netherlands
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Cervantes-Hernández F, Ochoa-Alejo N, Martínez O, Ordaz-Ortiz JJ. Metabolomic Analysis Identifies Differences Between Wild and Domesticated Chili Pepper Fruits During Development ( Capsicum annuum L.). FRONTIERS IN PLANT SCIENCE 2022; 13:893055. [PMID: 35769305 PMCID: PMC9234519 DOI: 10.3389/fpls.2022.893055] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Capsicum spp. members are a rich source of specialized compounds due to their secondary metabolism. Some metabolic pathways have suffered modifications during the domestication process and improvement of agricultural traits. Here, we compared non-targeted LC-MS profiles from several areas: wild accessions (C. annuum L. var. glabriusculum), domesticated cultivars (C. annuum L.), and the F1 progeny of a domesticated, and a wild accession cross (in both directions) throughout seven stages of fruit development of chili pepper fruits. The main detected differences were in glycerophospholipid metabolism, flavone and flavonol biosynthesis, sphingolipid metabolism, and cutin biosynthesis. The domesticated group exhibited a higher abundance in 12'-apo-β-carotenal, among others capsorubin, and β-tocopherol. Palmitic acid and derivates, terpenoids, and quercitrin were prevalent in the wild accessions. F1 progeny showed a higher abundance of capsaicin, glycol stearate, and soyacerebroside I. This work supports evidence of the side-affectation of trait selection over the metabolism of chili pepper fruit development. Furthermore, it was also observed that there was a possible heterosis effect over the secondary metabolism in the F1 progeny.
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Affiliation(s)
- Felipe Cervantes-Hernández
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad de Genómica Avanzada, Irapuato, Mexico
| | - Neftalí Ochoa-Alejo
- Departamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Mexico
| | - Octavio Martínez
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad de Genómica Avanzada, Irapuato, Mexico
| | - José Juan Ordaz-Ortiz
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad de Genómica Avanzada, Irapuato, Mexico
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Allwood JW, Williams A, Uthe H, van Dam NM, Mur LAJ, Grant MR, Pétriacq P. Unravelling Plant Responses to Stress-The Importance of Targeted and Untargeted Metabolomics. Metabolites 2021; 11:558. [PMID: 34436499 PMCID: PMC8398504 DOI: 10.3390/metabo11080558] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/10/2021] [Accepted: 08/16/2021] [Indexed: 12/19/2022] Open
Abstract
Climate change and an increasing population, present a massive global challenge with respect to environmentally sustainable nutritious food production. Crop yield enhancements, through breeding, are decreasing, whilst agricultural intensification is constrained by emerging, re-emerging, and endemic pests and pathogens, accounting for ~30% of global crop losses, as well as mounting abiotic stress pressures, due to climate change. Metabolomics approaches have previously contributed to our knowledge within the fields of molecular plant pathology and plant-insect interactions. However, these remain incredibly challenging targets, due to the vast diversity in metabolite volatility and polarity, heterogeneous mixtures of pathogen and plant cells, as well as rapid rates of metabolite turn-over. Unravelling the systematic biochemical responses of plants to various individual and combined stresses, involves monitoring signaling compounds, secondary messengers, phytohormones, and defensive and protective chemicals. This demands both targeted and untargeted metabolomics approaches, as well as a range of enzymatic assays, protein assays, and proteomic and transcriptomic technologies. In this review, we focus upon the technical and biological challenges of measuring the metabolome associated with plant stress. We illustrate the challenges, with relevant examples from bacterial and fungal molecular pathologies, plant-insect interactions, and abiotic and combined stress in the environment. We also discuss future prospects from both the perspective of key innovative metabolomic technologies and their deployment in breeding for stress resistance.
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Affiliation(s)
- James William Allwood
- Environmental and Biochemical Sciences, James Hutton Institute, Errol Road, Invergowrie, Dundee DD2 5DA, UK
| | - Alex Williams
- School of Earth and Environmental Sciences, The University of Manchester, Oxford Road, Manchester M13 9PT, UK;
- Department of Animal and Plant Sciences, Biosciences, The University of Sheffield Western Bank, Sheffield S10 2TN, UK
| | - Henriette Uthe
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Molecular Interaction Ecology Group, Friedrich-Schiller University Jena, Puschstr. 4, 04103 Leipzig, Germany; (H.U.); (N.M.v.D.)
| | - Nicole M. van Dam
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Molecular Interaction Ecology Group, Friedrich-Schiller University Jena, Puschstr. 4, 04103 Leipzig, Germany; (H.U.); (N.M.v.D.)
| | - Luis A. J. Mur
- Institute of Biological, Environmental and Rural Sciences (IBERS), Edward Llwyd Building, Aberystwyth University, Aberystwyth SY23 3DA, UK;
| | - Murray R. Grant
- Gibbet Hill Campus, School of Life Sciences, The University of Warwick, Coventry CV4 7AL, UK;
| | - Pierre Pétriacq
- UMR 1332 Fruit Biology and Pathology, Centre INRAE de Nouvelle Aquitaine Bordeaux, University of Bordeaux, 33140 Villenave d’Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, Centre INRAE de Nouvelle Aquitaine-Bordeaux, 33140 Villenave d’Ornon, France
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9
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Laoué J, Depardieu C, Gérardi S, Lamothe M, Bomal C, Azaiez A, Gros-Louis MC, Laroche J, Boyle B, Hammerbacher A, Isabel N, Bousquet J. Combining QTL Mapping and Transcriptomics to Decipher the Genetic Architecture of Phenolic Compounds Metabolism in the Conifer White Spruce. FRONTIERS IN PLANT SCIENCE 2021; 12:675108. [PMID: 34079574 PMCID: PMC8166253 DOI: 10.3389/fpls.2021.675108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/08/2021] [Indexed: 05/05/2023]
Abstract
Conifer forests worldwide are becoming increasingly vulnerable to the effects of climate change. Although the production of phenolic compounds (PCs) has been shown to be modulated by biotic and abiotic stresses, the genetic basis underlying the variation in their constitutive production level remains poorly documented in conifers. We used QTL mapping and RNA-Seq to explore the complex polygenic network underlying the constitutive production of PCs in a white spruce (Picea glauca) full-sib family for 2 years. QTL detection was performed for nine PCs and differentially expressed genes (DEGs) were identified between individuals with high and low PC contents for five PCs exhibiting stable QTLs across time. A total of 17 QTLs were detected for eight metabolites, including one major QTL explaining up to 91.3% of the neolignan-2 variance. The RNA-Seq analysis highlighted 50 DEGs associated with phenylpropanoid biosynthesis, several key transcription factors, and a subset of 137 genes showing opposite expression patterns in individuals with high levels of the flavonoids gallocatechin and taxifolin glucoside. A total of 19 DEGs co-localized with QTLs. Our findings represent a significant step toward resolving the genomic architecture of PC production in spruce and facilitate the functional characterization of genes and transcriptional networks responsible for differences in constitutive production of PCs in conifers.
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Affiliation(s)
- Justine Laoué
- Canada Research Chair in Forest Genomics, Centre for Forest Research and Institute for Systems and Integrative Biology, Université Laval, Québec, QC, Canada
- *Correspondence: Justine Laoué
| | - Claire Depardieu
- Canada Research Chair in Forest Genomics, Centre for Forest Research and Institute for Systems and Integrative Biology, Université Laval, Québec, QC, Canada
- Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Québec, QC, Canada
| | - Sébastien Gérardi
- Canada Research Chair in Forest Genomics, Centre for Forest Research and Institute for Systems and Integrative Biology, Université Laval, Québec, QC, Canada
| | - Manuel Lamothe
- Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Québec, QC, Canada
| | - Claude Bomal
- Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Québec, QC, Canada
| | - Aïda Azaiez
- Canada Research Chair in Forest Genomics, Centre for Forest Research and Institute for Systems and Integrative Biology, Université Laval, Québec, QC, Canada
| | - Marie-Claude Gros-Louis
- Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Québec, QC, Canada
| | - Jérôme Laroche
- Institute for Systems and Integrative Biology, Université Laval, Québec, QC, Canada
| | - Brian Boyle
- Institute for Systems and Integrative Biology, Université Laval, Québec, QC, Canada
| | - Almuth Hammerbacher
- Department of Zoology, Entomology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria, South Africa
| | - Nathalie Isabel
- Canada Research Chair in Forest Genomics, Centre for Forest Research and Institute for Systems and Integrative Biology, Université Laval, Québec, QC, Canada
- Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Québec, QC, Canada
| | - Jean Bousquet
- Canada Research Chair in Forest Genomics, Centre for Forest Research and Institute for Systems and Integrative Biology, Université Laval, Québec, QC, Canada
- Jean Bousquet
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10
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Park D, Barka GD, Yang EY, Cho MC, Yoon JB, Lee J. Identification of QTLs Controlling α-Glucosidase Inhibitory Activity in Pepper ( Capsicum annuum L.) Leaf and Fruit Using Genotyping-by-Sequencing Analysis. Genes (Basel) 2020; 11:E1116. [PMID: 32977701 PMCID: PMC7650571 DOI: 10.3390/genes11101116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 01/14/2023] Open
Abstract
Diabetes mellitus, a group of metabolic disorders characterized by hyperglycemia, is one of the most serious and common diseases around the world and is associated with major complications such as diabetic neuropathy, retinopathy, and cardiovascular diseases. A widely used treatment for non-insulin-dependent diabetes is α-glucosidase inhibitors (AGIs) such as acarbose, which hinders hydrolytic cleavage of disaccharides and retard glucose absorption. The ability to inhibit α-glucosidase activity has been reported in leaf and fruit of pepper (Capsicum annuum L.). In this study, we aimed to identify quantitative trait loci (QTLs) controlling α-glucosidase inhibitory activity (AGI activity) in pepper leaf and fruit using enzyme assay and genotyping-by-sequencing (GBS) analysis. The AGI activity at three stages of leaf and one stage of fruit development was analyzed by 96 F2 individuals. GBS analysis identified 17,427 SNPs that were subjected to pepper genetic linkage map construction. The map, consisting of 763 SNPs, contained 12 linkage groups with a total genetic distance of 2379 cM. QTL analysis revealed seven QTLs (qAGI1.1, qAGI11.1, qAGI5.1, qAGI9.1, qAGI12.1, qAGI5.2, and qAGI12.2) controlling AGI activity in pepper leaf and fruit. The QTLs for AGI activity varied by plant age and organ. This QTL information is expected to provide a significant contribution to developing pepper varieties with high AGI activity.
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Affiliation(s)
- Doie Park
- Department of Horticulture, Institute of Agricultural Science & Technology, Jeonbuk National University, Jeonju 54896, Korea; (D.P.); (G.D.B.)
| | - Geleta Dugassa Barka
- Department of Horticulture, Institute of Agricultural Science & Technology, Jeonbuk National University, Jeonju 54896, Korea; (D.P.); (G.D.B.)
| | - Eun-Young Yang
- Vegetable Research Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Wanju 55365, Korea; (E.-Y.Y.); (M.-C.C.)
| | - Myeong-Cheoul Cho
- Vegetable Research Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Wanju 55365, Korea; (E.-Y.Y.); (M.-C.C.)
| | - Jae Bok Yoon
- Research and Development Unit, Pepper and Breeding Institute, K-Seed Valley, Gimje 54324, Korea;
| | - Jundae Lee
- Department of Horticulture, Institute of Agricultural Science & Technology, Jeonbuk National University, Jeonju 54896, Korea; (D.P.); (G.D.B.)
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11
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Placenta, Pericarp, and Seeds of Tabasco Chili Pepper Fruits Show a Contrasting Diversity of Bioactive Metabolites. Metabolites 2019; 9:metabo9100206. [PMID: 31569403 PMCID: PMC6835813 DOI: 10.3390/metabo9100206] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/21/2019] [Accepted: 09/23/2019] [Indexed: 12/17/2022] Open
Abstract
Chili pepper (Capsicum spp.) is one of the most important horticultural crops worldwide, and its unique organoleptic properties and health benefits have been established for centuries. However, there is little knowledge about how metabolites are distributed throughout fruit parts. This work focuses on the use of liquid chromatography coupled with high resolution mass spectrometry (UHPLC-ESI-HRMS) to estimate the global metabolite profiles of the pericarp, placenta, and seeds of Tabasco pepper fruits (Capsicum frutescens L.) at the red mature stage of ripening. Our main results putatively identified 60 differential compounds between these tissues and seeds. Firstly, we found that pericarp has a higher content of glycosides, showing on average a fold change of 5 and a fold change of 14 for terpenoids when compared with other parts of the fruit. While placenta was the richest tissue in capsaicinoid-related compounds, alkaloids, and tocopherols, with a 35, 3, and 7 fold change, respectively. However, the seeds were richer in fatty acids and saponins with fold changes of 86 and 224, respectively. Therefore, our study demonstrates that a non-targeted metabolomic approach may help to improve our understanding of unexplored areas of plant metabolism and also may be the starting point for a detailed analysis in complex plant parts, such as fruits.
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12
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Macel M, Visschers IGS, Peters JL, Kappers IF, de Vos RCH, van Dam NM. Metabolomics of Thrips Resistance in Pepper (Capsicum spp.) Reveals Monomer and Dimer Acyclic Diterpene Glycosides as Potential Chemical Defenses. J Chem Ecol 2019; 45:490-501. [PMID: 31175497 PMCID: PMC6570690 DOI: 10.1007/s10886-019-01074-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 05/09/2019] [Accepted: 05/13/2019] [Indexed: 12/16/2022]
Abstract
The development of pesticide resistance in insects and recent bans on pesticides call for the identification of natural sources of resistance in crops. Here, we used natural variation in pepper (Capsicum spp.) resistance combined with an untargeted metabolomics approach to detect secondary metabolites related to thrips (Frankliniella occidentalis) resistance. Using leaf disc choice assays, we tested 11 Capsicum accessions of C. annuum and C. chinense in both vegetative and flowering stages for thrips resistance. Metabolites in the leaves of these 11 accessions were analyzed using LC-MS based untargeted metabolomics. The choice assays showed significant differences among the accessions in thrips feeding damage. The level of resistance depended on plant developmental stage. Metabolomics analyses showed differences in metabolomes among the Capsicum species and plant developmental stages. Moreover, metabolomic profiles of resistant and susceptible accessions differed. Monomer and dimer acyclic diterpene glycosides (capsianosides) were pinpointed as metabolites that were related to thrips resistance. Sucrose and malonylated flavone glycosides were related to susceptibility. To our knowledge, this is the first time that dimer capsianosides of pepper have been linked to insect resistance. Our results show the potential of untargeted metabolomics as a tool for discovering metabolites that are important in plant - insect interactions.
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Affiliation(s)
- Mirka Macel
- Molecular Interaction Ecology, Institute of Water and Wetland Research (IWWR), Radboud University, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands.
| | - Isabella G S Visschers
- Molecular Interaction Ecology, Institute of Water and Wetland Research (IWWR), Radboud University, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands
| | - Janny L Peters
- Molecular Plant Physiology, Institute of Water and Wetland Research (IWWR), Radboud University, P. O. Box 9010, 6500 GL, Nijmegen, The Netherlands
| | - Iris F Kappers
- Laboratory of Plant Physiology, Wageningen University and Research, P.O. Box 658, 6700 AR, Wageningen, The Netherlands
| | - Ric C H de Vos
- Wageningen Plant Research, Bioscience, Wageningen University and Research, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
| | - Nicole M van Dam
- Molecular Interaction Ecology, Institute of Water and Wetland Research (IWWR), Radboud University, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany
- Institute of Biodiversity, Friedrich Schiller University Jena, Dornburger-Str. 159, 07743, Jena, Germany
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13
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Florentino-Ramos E, Villa-Ruano N, Hidalgo-Martínez D, Ramírez-Meraz M, Méndez-Aguilar R, Velásquez-Valle R, Zepeda-Vallejo LG, Pérez-Hernández N, Becerra-Martínez E. 1H NMR-based fingerprinting of eleven Mexican Capsicum annuum cultivars. Food Res Int 2019; 121:12-19. [PMID: 31108732 DOI: 10.1016/j.foodres.2019.03.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/08/2019] [Accepted: 03/10/2019] [Indexed: 02/06/2023]
Abstract
Approximately 90% of the chili peppers consumed in the world are harvested in Mexico. The present article describes the untargeted 1H NMR-based metabolomic profiling of 11 cultivars of Capsicum annuum species which are routinely consumed worldwide. The metabolomic fingerprinting detected via 1H NMR contained 44 metabolites including sugars, amino acids, organic acids, polyphenolic acids and alcohols which were identified by comparison with the literature data, with Chenomx database and by 2D NMR. Statistical approaches based on principal component analysis (PCA) and linear discriminant analysis (LDA) were used to classify the Capsicum annuum cultivars according to their metabolite profile. LDA revealed metabolomic differences and similarities among Capsicum annuum cultivars, whereas hierarchical cluster analysis (HCA) significantly separated the cultivars according to the phylogenetic trees obtained. Substantial endogenous levels of free amino acids and carbohydrates were detected in all the studied cultivars but interestingly, Capsicum annuum cv. mirasol and C. annuum cv. chilaca contained almost three-fold more endogenous levels of vitamin C than the other cultivars. Considering that this antioxidant was found in crude aqueous extracts, its abundance could be directly proportional to its bioavailability for human nutrition. The results suggest that 1H NMR is an effective method to determine differences among cultivars of the Capsicum annuum species.
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Affiliation(s)
- Elideth Florentino-Ramos
- Centro de Nanociencias y Micro y Nanotecnologías, Instituto Politécnico Nacional, Av. Luis Enrique Erro S/N, Unidad Profesional Adolfo López Mateos, Zacateco, Delegación Gustavo A. Madero, Ciudad de México 07738, México
| | - Nemesio Villa-Ruano
- CONACyT-Centro Universitario de Vinculación y Transferencia de Tecnología, Benemérita Universidad Autónoma de Puebla, CP 72570 Puebla, México
| | - Diego Hidalgo-Martínez
- Department of Plant and Microbial Biology, University of California, 111 Koshland Hall, MC-3102, Berkeley, CA 94720-3102, USA
| | - Moisés Ramírez-Meraz
- INIFAP-Campo Experimental Las Huastecas, km 55 Carretera Tampico-Mante, Cuauhtémoc, Tamaulipas, México, CP 89610, México
| | - Reinaldo Méndez-Aguilar
- INIFAP-Campo Experimental Las Huastecas, km 55 Carretera Tampico-Mante, Cuauhtémoc, Tamaulipas, México, CP 89610, México
| | - Rodolfo Velásquez-Valle
- INIFAP-Campo Experimental Zacatecas, Km. 24.5 Carretera Zacatecas-Fresnillo, Apdo. Postal # 18, Calera de V. R., Zacatecas, México, CP 98500, México
| | - L Gerardo Zepeda-Vallejo
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. de Carpio y Plan de Ayala S/N, Col. Santo Tomás, Delegación Miguel Hidalgo, Ciudad de México 11340, México
| | - Nury Pérez-Hernández
- Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Guillermo Massieu Helguera, No. 239, Fracc, "La Escalera", Ticomàn, Ciudad de México 07320, México
| | - Elvia Becerra-Martínez
- Centro de Nanociencias y Micro y Nanotecnologías, Instituto Politécnico Nacional, Av. Luis Enrique Erro S/N, Unidad Profesional Adolfo López Mateos, Zacateco, Delegación Gustavo A. Madero, Ciudad de México 07738, México.
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14
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Vosman B, Kashaninia A, Van't Westende W, Meijer-Dekens F, van Eekelen H, Visser RGF, de Vos RCH, Voorrips RE. QTL mapping of insect resistance components of Solanum galapagense. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2019; 132:531-541. [PMID: 30470858 PMCID: PMC6349790 DOI: 10.1007/s00122-018-3239-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 11/12/2018] [Indexed: 05/07/2023]
Abstract
QTLs for insect resistance parameters, trichome type IV development, and more than 200 non-volatile metabolites, including 76 acyl sugars, all co-locate at the end of Chromosome 2 of Solanum galapagense. Host plant resistance is gaining importance as more and more insecticides are being banned due to environmental concerns. In tomato, resistance towards insects is found in wild relatives and has been attributed to the presence of glandular trichomes and their specific phytochemical composition. In this paper, we describe the results from a large-scale QTL mapping of data from whitefly resistance tests, trichome phenotyping and a comprehensive metabolomics analysis in a recombinant inbred line population derived from a cross between the cultivated Solanum lycopersicum and the wild relative S. galapagense, which is resistant to a range of pest insects. One major QTL (Wf-1) was found to govern the resistance against two different whitefly species. This QTL co-localizes with QTLs for the presence of trichomes type IV and V, as well as all 76 acyl sugars detected and about 150 other non-volatile phytochemicals, including methyl esters of the flavonols myricetin and quercetin. Based on these results, we hypothesize that Wf-1 is regulating the formation of glandular trichome type IV on the leaf epidermis, enabling the production and accumulation of bioactive metabolites in this type of trichomes.
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Affiliation(s)
- Ben Vosman
- Plant Breeding, Wageningen University and Research, PO Box 386, 6700 AJ, Wageningen, The Netherlands.
| | - Atiyeh Kashaninia
- Plant Breeding, Wageningen University and Research, PO Box 386, 6700 AJ, Wageningen, The Netherlands
- Graduate School Experimental Plant Sciences, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Wendy Van't Westende
- Plant Breeding, Wageningen University and Research, PO Box 386, 6700 AJ, Wageningen, The Netherlands
| | - Fien Meijer-Dekens
- Plant Breeding, Wageningen University and Research, PO Box 386, 6700 AJ, Wageningen, The Netherlands
| | - Henriëtte van Eekelen
- Bioscience, Wageningen University and Research, PO Box 16, 6700AA, Wageningen, The Netherlands
| | - Richard G F Visser
- Plant Breeding, Wageningen University and Research, PO Box 386, 6700 AJ, Wageningen, The Netherlands
| | - Ric C H de Vos
- Bioscience, Wageningen University and Research, PO Box 16, 6700AA, Wageningen, The Netherlands
| | - Roeland E Voorrips
- Plant Breeding, Wageningen University and Research, PO Box 386, 6700 AJ, Wageningen, The Netherlands
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15
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Fragallah SADA, Wang P, Li N, Chen Y, Lin S. Metabolomic Analysis of Pollen Grains with Different Germination Abilities from Two Clones of Chinese Fir (Cunninghamia lanceolata (Lamb) Hook). Molecules 2018; 23:E3162. [PMID: 30513683 PMCID: PMC6321011 DOI: 10.3390/molecules23123162] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/13/2018] [Accepted: 11/29/2018] [Indexed: 11/17/2022] Open
Abstract
Pollen grains produce certain metabolites, which can improve or inhibit germination and tube growth. Metabolomic analysis of germinating and growing Chinese fir pollen has not been reported. Therefore, this study aimed to analyse metabolites changes, content and expression in the germinating pollen of Chinese fir. To understand the metabolic differences, two clones from Chinese fir were selected. Metabolomics analyses were performed on three stages (1-, 24- and 48-h) during in vitro pollen germination. The metabolites profiles at different time points were analyzed by using liquid chromatography-mass spectrometry. The results showed that 171 peaks were screened; the corresponding differential metabolites of 121 peaks were classified into nine types of substances. The expression of metabolites showed significant differences across and between clones, and the variation was evident at all germination stages. The expression was obvious at the early stage of germination, which differed clearly from that of the late stage after pollen tube growth. Moreover, the metabolites were mainly enriched in 14 metabolic pathways. Pollen germination and tube growth and metabolites expressions changed per incubation time. Since this work is preliminary, we suggest further investigations to understand the relationship between the differential metabolites and pollen development, and factors affecting pollen germination process.
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Affiliation(s)
- Seif Aldin Dawina Abdallah Fragallah
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
- Faculty of Natural Resources and Environmental Studies, University of Kordofan, Elobied 160, Sudan.
| | - Pei Wang
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
- State Forestry Administration Engineering Research Center of Chinese Fir, Fuzhou 350002, China.
| | - Nuo Li
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
- Key Laboratory for Forest Adversity Physiological Ecology and Molecular Biology, Fuzhou 350002, China.
| | - Yu Chen
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
- State Forestry Administration Engineering Research Center of Chinese Fir, Fuzhou 350002, China.
- Key Laboratory for Forest Adversity Physiological Ecology and Molecular Biology, Fuzhou 350002, China.
| | - Sizu Lin
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
- State Forestry Administration Engineering Research Center of Chinese Fir, Fuzhou 350002, China.
- Key Laboratory for Forest Adversity Physiological Ecology and Molecular Biology, Fuzhou 350002, China.
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16
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Antonio AS, Wiedemann LSM, Veiga Junior VF. The genusCapsicum: a phytochemical review of bioactive secondary metabolites. RSC Adv 2018; 8:25767-25784. [PMID: 35539808 PMCID: PMC9082723 DOI: 10.1039/c8ra02067a] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 07/03/2018] [Indexed: 12/22/2022] Open
Abstract
The Capsicum genus is one of the most popular plants consumed and cultivated worldwide, containing approximately 50 000 varieties of pepper. Due to its wide biodiversity, the chemical composition within the genus also presents a great variability. Its major applications are in food and pharmacological industry, as pepper presents a chemical composition rich in capsaicinoids, carotenoids, flavonoids and volatile compounds which is attributed to the ability of the fruit to remove insipidity, produce aromas and act against oxidative diseases. Due the existence of several cultivars there is a huge intraspecific chemical variability within each species, which can be considered as an obstacle when selecting and cultivating a species to be applied as a natural product source for a specific objective. The usage of pepper-based products in different industrial areas requires pre-established ranges of chemical compounds, such as capsaicinoids, which in high concentration are toxic when consumed by humans. Applying a pepper with a chemical profile closely related to the concentration that is required after industrial processing can improve efficacy and effectiveness of the process. An insight into the chemical characteristics of major secondary bioactive compounds within Capsicum, the factors that affect their concentration and their chemosystematic implication are reported and discussed. The Capsicum genus is economically important due to its chemical profile which is rich in capsaicinoids, carotenoids and flavonoids. Its unique chemical composition allows this genus to be applied from food additives to medicinal application.![]()
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Affiliation(s)
- A. S. Antonio
- Chemistry Department
- Institute of Exact Sciences
- Amazonas Federal University
- Manaus
- Brazil
| | - L. S. M. Wiedemann
- Chemistry Department
- Institute of Exact Sciences
- Amazonas Federal University
- Manaus
- Brazil
| | - V. F. Veiga Junior
- Chemistry Department
- Institute of Exact Sciences
- Amazonas Federal University
- Manaus
- Brazil
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17
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Kim TJ, Choi J, Kim KW, Ahn SK, Ha SH, Choi Y, Park NI, Kim JK. Metabolite Profiling of Peppers of Various Colors Reveals Relationships Between Tocopherol, Carotenoid, and Phytosterol Content. J Food Sci 2017; 82:2885-2893. [PMID: 29125620 DOI: 10.1111/1750-3841.13968] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 10/04/2017] [Indexed: 12/15/2022]
Abstract
Peppers are widely consumed in Korea; the varietal development of peppers with increased content of beneficial plant metabolites is, therefore, of considerable interest. This requires a comprehensive understanding of the metabolic profile of pepper plants and the factors affecting this profile. To this end, we determined the content of various metabolites, such as hydrophilic and lipophilic compounds, phenolic acids, carotenoids, and capsaicinoids in peppers of various colors (green, red, pale green, and violet peppers) and in a high-pungency (green) pepper. We also performed principal component analysis (PCA), Pearson's correlation analysis, and hierarchical clustering analysis (HCA) to determine the relationships among these metabolites in peppers. PCA results indicated no significant variances among the 3 sample replicates. The HCA showed correlations between the metabolites resulting from common or closely linked biosynthesis pathways. Our results showed that carotenoids correlated positively with tocopherols and negatively with phytosterols; our findings also indicated a close relationship between the methylerythritol 4-phosphate and mevalonic acid biosynthesis pathways, providing evidence in favor of an earlier hypothesis regarding crosstalk across the chloroplast membrane. We, thus, demonstrate that metabolic profiling combined with multivariate analysis is a useful tool for analyzing metabolic networks. PRACTICAL APPLICATION A total of 71 metabolites were measured in 5 peppers of different colors. The metabolic profiling with multivariate analysis revealed that tocopherol content had a positive correlation with the carotenoid content and a negative correlation with the phytosterol content. The results of this study may help in breeding programs to produce new germplasm with enhanced nutritional quality.
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Affiliation(s)
- Tae Jin Kim
- Div. of Life Sciences and Convergence Research Center for Insect Vectors, Incheon Natl. Univ., Incheon 22012, Republic of Korea
| | - Jaehyuk Choi
- Div. of Life Sciences and Convergence Research Center for Insect Vectors, Incheon Natl. Univ., Incheon 22012, Republic of Korea
| | - Kil Won Kim
- Div. of Life Sciences and Convergence Research Center for Insect Vectors, Incheon Natl. Univ., Incheon 22012, Republic of Korea
| | - Soon Kil Ahn
- Div. of Life Sciences and Convergence Research Center for Insect Vectors, Incheon Natl. Univ., Incheon 22012, Republic of Korea
| | - Sun-Hwa Ha
- Graduate School of Biotechnology and Crop Biotech Inst., Kyung Hee Univ., Yongin 17104, Republic of Korea
| | - Yongsoo Choi
- Systems Biotechnology Research Center, Korea Inst. of Science and Technology (KIST), Gangneung 25451, Republic of Korea
| | - Nam Il Park
- Dept. of Plant Science, Gangneung-Wonju Natl. Univ., 7 Jukheon-gil, Gangneung 25457, Republic of Korea
| | - Jae Kwang Kim
- Div. of Life Sciences and Convergence Research Center for Insect Vectors, Incheon Natl. Univ., Incheon 22012, Republic of Korea
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18
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Carvalho DRA, Vasconcelos MW, Lee S, Koning-Boucoiran CFS, Vreugdenhil D, Krens FA, Heuvelink E, Carvalho SMP. Gene expression and physiological responses associated to stomatal functioning in Rosa×hybrida grown at high relative air humidity. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2016; 253:154-163. [PMID: 27968984 DOI: 10.1016/j.plantsci.2016.09.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 09/02/2016] [Accepted: 09/30/2016] [Indexed: 06/06/2023]
Abstract
High relative air humidity (RH≥85%) during growth disturbs stomatal functioning, resulting in excessive water loss in conditions of high evaporative demand. We investigated the expression of nine abscisic acid (ABA)-related genes (involved in ABA biosynthesis, oxidation and conjugation) and two non-ABA related genes (involved in the water stress response) aiming to better understand the mechanisms underlying contrasting stomatal functioning in plants grown at high RH. Four rose genotypes with contrasting sensitivity to high RH (one sensitive, one tolerant and two intermediate) were grown at moderate (62±3%) or high (89±4%) RH. The sensitive genotype grown at high RH showed a significantly higher stomatal conductance (gs) and water loss in response to closing stimuli as compared to the other genotypes. Moreover, high RH reduced the leaf ABA concentration and its metabolites to a greater extent in the sensitive genotype as compared to the tolerant one. The large majority of the studied genes had a relevant role on stomatal functioning (NCED1, UGT75B2, BG2, OST1, ABF3 and Rh-APX) while two others showed a minor contribution (CYP707A3 and BG1) and AAO3, CYP707A1 and DREB1B did not contribute to the tolerance trait. These results show that multiple genes form a highly complex regulatory network acting together towards the genotypic tolerance to high RH.
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Affiliation(s)
- Dália R A Carvalho
- CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa/Porto, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401 Porto, Portugal.
| | - Marta W Vasconcelos
- CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa/Porto, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401 Porto, Portugal
| | - Sangseok Lee
- Plant Sciences Group, Wageningen University, Plant Physiology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands; Gyeongsangbuk-Do Agricultural Research & Extension Services, 136 Gil-14, Chilgokiungang-Daero, Daegu, South Korea
| | - Carole F S Koning-Boucoiran
- Plant Sciences Group, Wageningen University, Plant Breeding, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Dick Vreugdenhil
- Plant Sciences Group, Wageningen University, Plant Physiology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Frans A Krens
- Plant Sciences Group, Wageningen University, Plant Breeding, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Ep Heuvelink
- Plant Sciences Group, Wageningen University, Horticulture and Product Physiology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Susana M P Carvalho
- CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa/Porto, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401 Porto, Portugal; Plant Sciences Group, Wageningen University, Horticulture and Product Physiology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands; GreenUP/CITAB-UP & DGAOT, Faculty of Sciences, University of Porto, Campus Agrário de Vairão, Rua Padre Armando Quintas, 7. 4485-661 Vairão, Portugal.
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van den Oever-van den Elsen F, Lucatti AF, van Heusden S, Broekgaarden C, Mumm R, Dicke M, Vosman B. Quantitative resistance against Bemisia tabaci in Solanum pennellii: Genetics and metabolomics. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2016; 58:397-412. [PMID: 26576823 DOI: 10.1111/jipb.12449] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 11/11/2015] [Indexed: 05/20/2023]
Abstract
The whitefly Bemisia tabaci is a serious threat in tomato cultivation worldwide as all varieties grown today are highly susceptible to this devastating herbivorous insect. Many accessions of the tomato wild relative Solanum pennellii show a high resistance towards B. tabaci. A mapping approach was used to elucidate the genetic background of whitefly-resistance related traits and associated biochemical traits in this species. Minor quantitative trait loci (QTLs) for whitefly adult survival (AS) and oviposition rate (OR) were identified and some were confirmed in an F2 BC1 population, where they showed increased percentages of explained variance (more than 30%). Bulked segregant analyses on pools of whitefly-resistant and -susceptible F2 plants enabled the identification of metabolites that correlate either with resistance or susceptibility. Genetic mapping of these metabolites showed that a large number of them co-localize with whitefly-resistance QTLs. Some of these whitefly-resistance QTLs are hotspots for metabolite QTLs. Although a large number of metabolite QTLs correlated to whitefly resistance or susceptibility, most of them are yet unknown compounds and further studies are needed to identify the metabolic pathways and genes involved. The results indicate a direct genetic correlation between biochemical-based resistance characteristics and reduced whitefly incidence in S. pennellii.
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Affiliation(s)
- Floor van den Oever-van den Elsen
- Wageningen UR Plant Breeding, Wageningen University and Research Centre, P.O. Box 386, 6700AJ, Wageningen, The Netherlands
- Laboratory of Entomology, Wageningen University and Research Centre, P.O. Box 16, 6700AA, Wageningen, The Netherlands
- Graduate School Experimental Plant Sciences, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Alejandro F Lucatti
- Wageningen UR Plant Breeding, Wageningen University and Research Centre, P.O. Box 386, 6700AJ, Wageningen, The Netherlands
- Graduate School Experimental Plant Sciences, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Sjaak van Heusden
- Wageningen UR Plant Breeding, Wageningen University and Research Centre, P.O. Box 386, 6700AJ, Wageningen, The Netherlands
| | - Colette Broekgaarden
- Wageningen UR Plant Breeding, Wageningen University and Research Centre, P.O. Box 386, 6700AJ, Wageningen, The Netherlands
| | - Roland Mumm
- Plant Research International, Business Unit Bioscience, Wageningen University and Research Centre, P.O. Box 16, 6700AA Wageningen, The Netherlands
| | - Marcel Dicke
- Laboratory of Entomology, Wageningen University and Research Centre, P.O. Box 16, 6700AA, Wageningen, The Netherlands
| | - Ben Vosman
- Wageningen UR Plant Breeding, Wageningen University and Research Centre, P.O. Box 386, 6700AJ, Wageningen, The Netherlands
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20
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Scossa F, Brotman Y, de Abreu E Lima F, Willmitzer L, Nikoloski Z, Tohge T, Fernie AR. Genomics-based strategies for the use of natural variation in the improvement of crop metabolism. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2016; 242:47-64. [PMID: 26566824 DOI: 10.1016/j.plantsci.2015.05.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/29/2015] [Accepted: 05/31/2015] [Indexed: 05/08/2023]
Abstract
Next-generation genomics holds great potential in the study of plant phenotypic variation. With several crop reference genomes now available, the affordable costs of de novo genome assembly or target resequencing offer the opportunity to mine the enormous amount of genetic diversity hidden in crop wild relatives. Wide introgressions from these wild ancestors species or land races represent a possible strategy to improve cultivated varieties. In this review, we discuss the mechanisms underlying metabolic diversity within plant species and the possible strategies (and barriers) to introgress novel metabolic traits into cultivated varieties. We show how deep genomic surveys uncover various types of structural variants from extended gene pools of major crops and highlight how this variation may be used for the improvement of crop metabolism.
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Affiliation(s)
- Federico Scossa
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476 Potsdam, Germany; Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Centro di Ricerca per la Frutticoltura, Via di Fioranello 52, 00134 Rome, Italy.
| | - Yariv Brotman
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | | | - Lothar Willmitzer
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | - Zoran Nikoloski
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | - Takayuki Tohge
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | - Alisdair R Fernie
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476 Potsdam, Germany.
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21
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Soltis NE, Kliebenstein DJ. Natural Variation of Plant Metabolism: Genetic Mechanisms, Interpretive Caveats, and Evolutionary and Mechanistic Insights. PLANT PHYSIOLOGY 2015; 169:1456-68. [PMID: 26272883 PMCID: PMC4634085 DOI: 10.1104/pp.15.01108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 08/12/2015] [Indexed: 05/06/2023]
Abstract
Combining quantitative genetics studies with metabolomics/metabolic profiling platforms, genomics, and transcriptomics is creating significant progress in identifying the causal genes controlling natural variation in metabolite accumulations and profiles. In this review, we discuss key mechanistic and evolutionary insights that are arising from these studies. This includes the potential role of transport and other processes in leading to a separation of the site of mechanistic causation and metabolic consequence. A reilluminated observation is the potential for genomic variation in the organelle to alter phenotypic variation alone and in epistatic interaction with the nuclear genetic variation. These studies are also highlighting new aspects of metabolic pleiotropy both in terms of the breadth of loci altering metabolic variation as well as the potential for broader effects on plant defense regulation of the metabolic variation than has previously been predicted. We also illustrate caveats that can be overlooked when translating quantitative genetics descriptors such as heritability and per-locus r(2) to mechanistic or evolutionary interpretations.
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Affiliation(s)
- Nicole E Soltis
- Department of Plant Sciences, University of California, Davis, California 95616 (N.E.S., D.J.K.); andDynaMo Center of Excellence, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (D.J.K.)
| | - Daniel J Kliebenstein
- Department of Plant Sciences, University of California, Davis, California 95616 (N.E.S., D.J.K.); andDynaMo Center of Excellence, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (D.J.K.)
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22
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Rosado-Souza L, Scossa F, Chaves IS, Kleessen S, Salvador LFD, Milagre JC, Finger F, Bhering LL, Sulpice R, Araújo WL, Nikoloski Z, Fernie AR, Nunes-Nesi A. Exploring natural variation of photosynthetic, primary metabolism and growth parameters in a large panel of Capsicum chinense accessions. PLANTA 2015; 242:677-691. [PMID: 26007687 DOI: 10.1007/s00425-015-2332-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 05/13/2015] [Indexed: 06/04/2023]
Abstract
Collectively, the results presented improve upon the utility of an important genetic resource and attest to a complex genetic basis for differences in both leaf metabolism and fruit morphology between natural populations. Diversity of accessions within the same species provides an alternative method to identify physiological and metabolic traits that have large effects on growth regulation, biomass and fruit production. Here, we investigated physiological and metabolic traits as well as parameters related to plant growth and fruit production of 49 phenotypically diverse pepper accessions of Capsicum chinense grown ex situ under controlled conditions. Although single-trait analysis identified up to seven distinct groups of accessions, working with the whole data set by multivariate analyses allowed the separation of the 49 accessions in three clusters. Using all 23 measured parameters and data from the geographic origin for these accessions, positive correlations between the combined phenotypes and geographic origin were observed, supporting a robust pattern of isolation-by-distance. In addition, we found that fruit set was positively correlated with photosynthesis-related parameters, which, however, do not explain alone the differences in accession susceptibility to fruit abortion. Our results demonstrated that, although the accessions belong to the same species, they exhibit considerable natural intraspecific variation with respect to physiological and metabolic parameters, presenting diverse adaptation mechanisms and being a highly interesting source of information for plant breeders. This study also represents the first study combining photosynthetic, primary metabolism and growth parameters for Capsicum to date.
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Affiliation(s)
- Laise Rosado-Souza
- Max-Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil
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23
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Turi CE, Finley J, Shipley PR, Murch SJ, Brown PN. Metabolomics for phytochemical discovery: development of statistical approaches using a cranberry model system. JOURNAL OF NATURAL PRODUCTS 2015; 78:953-966. [PMID: 25751407 DOI: 10.1021/np500667z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Metabolomics is the qualitative and quantitative analysis of all of the small molecules in a biological sample at a specific time and influence. Technologies for metabolomics analysis have developed rapidly as new analytical tools for chemical separations, mass spectrometry, and NMR spectroscopy have emerged. Plants have one of the largest metabolomes, and it is estimated that the average plant leaf can contain upward of 30 000 phytochemicals. In the past decade, over 1200 papers on plant metabolomics have been published. A standard metabolomics data set contains vast amounts of information and can either investigate or generate hypotheses. The key factors in using plant metabolomics data most effectively are the experimental design, authentic standard availability, extract standardization, and statistical analysis. Using cranberry (Vaccinium macrocarpon) as a model system, this review will discuss and demonstrate strategies and tools for analysis and interpretation of metabolomics data sets including eliminating false discoveries and determining significance, metabolite clustering, and logical algorithms for discovery of new metabolites and pathways. Together these metabolomics tools represent an entirely new pipeline for phytochemical discovery.
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Affiliation(s)
- Christina E Turi
- †Department of Chemistry, University of British Columbia, 3247 University Way, Kelowna, British Columbia, Canada, V1V 1V7
| | - Jamie Finley
- ‡Natural Health Products and Food Research Group, British Columbia Institute of Technology, 4355 Mathissi Place, Burnaby, British Columbia, Canada, V5G 3H2
| | - Paul R Shipley
- †Department of Chemistry, University of British Columbia, 3247 University Way, Kelowna, British Columbia, Canada, V1V 1V7
| | - Susan J Murch
- †Department of Chemistry, University of British Columbia, 3247 University Way, Kelowna, British Columbia, Canada, V1V 1V7
| | - Paula N Brown
- ‡Natural Health Products and Food Research Group, British Columbia Institute of Technology, 4355 Mathissi Place, Burnaby, British Columbia, Canada, V5G 3H2
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24
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Alseekh S, Tohge T, Wendenberg R, Scossa F, Omranian N, Li J, Kleessen S, Giavalisco P, Pleban T, Mueller-Roeber B, Zamir D, Nikoloski Z, Fernie AR. Identification and mode of inheritance of quantitative trait loci for secondary metabolite abundance in tomato. THE PLANT CELL 2015; 27:485-512. [PMID: 25770107 PMCID: PMC4558650 DOI: 10.1105/tpc.114.132266] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 01/27/2015] [Accepted: 02/16/2015] [Indexed: 05/18/2023]
Abstract
A large-scale metabolic quantitative trait loci (mQTL) analysis was performed on the well-characterized Solanum pennellii introgression lines to investigate the genomic regions associated with secondary metabolism in tomato fruit pericarp. In total, 679 mQTLs were detected across the 76 introgression lines. Heritability analyses revealed that mQTLs of secondary metabolism were less affected by environment than mQTLs of primary metabolism. Network analysis allowed us to assess the interconnectivity of primary and secondary metabolism as well as to compare and contrast their respective associations with morphological traits. Additionally, we applied a recently established real-time quantitative PCR platform to gain insight into transcriptional control mechanisms of a subset of the mQTLs, including those for hydroxycinnamates, acyl-sugar, naringenin chalcone, and a range of glycoalkaloids. Intriguingly, many of these compounds displayed a dominant-negative mode of inheritance, which is contrary to the conventional wisdom that secondary metabolite contents decreased on domestication. We additionally performed an exemplary evaluation of two candidate genes for glycolalkaloid mQTLs via the use of virus-induced gene silencing. The combined data of this study were compared with previous results on primary metabolism obtained from the same material and to other studies of natural variance of secondary metabolism.
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Affiliation(s)
- Saleh Alseekh
- Max-Planck Institute for Molecular Plant Physiology, 14476, Potsdam-Golm, Germany
| | - Takayuki Tohge
- Max-Planck Institute for Molecular Plant Physiology, 14476, Potsdam-Golm, Germany
| | - Regina Wendenberg
- Max-Planck Institute for Molecular Plant Physiology, 14476, Potsdam-Golm, Germany
| | - Federico Scossa
- Max-Planck Institute for Molecular Plant Physiology, 14476, Potsdam-Golm, Germany Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Centro di Ricerca per la Frutticoltura, 00134 Rome, Italy
| | - Nooshin Omranian
- Max-Planck Institute for Molecular Plant Physiology, 14476, Potsdam-Golm, Germany Institute of Biochemistry and Biology, University of Potsdam, D-14476 Potsdam-Golm, Germany
| | - Jie Li
- Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom
| | - Sabrina Kleessen
- Max-Planck Institute for Molecular Plant Physiology, 14476, Potsdam-Golm, Germany
| | - Patrick Giavalisco
- Max-Planck Institute for Molecular Plant Physiology, 14476, Potsdam-Golm, Germany
| | - Tzili Pleban
- Institute of Plant Sciences and Genetics and Otto Warburg Centre for Biotechnology, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
| | - Bernd Mueller-Roeber
- Max-Planck Institute for Molecular Plant Physiology, 14476, Potsdam-Golm, Germany Institute of Biochemistry and Biology, University of Potsdam, D-14476 Potsdam-Golm, Germany
| | - Dani Zamir
- Institute of Plant Sciences and Genetics and Otto Warburg Centre for Biotechnology, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
| | - Zoran Nikoloski
- Max-Planck Institute for Molecular Plant Physiology, 14476, Potsdam-Golm, Germany
| | - Alisdair R Fernie
- Max-Planck Institute for Molecular Plant Physiology, 14476, Potsdam-Golm, Germany
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25
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Dolferus R. To grow or not to grow: a stressful decision for plants. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2014; 229:247-261. [PMID: 25443851 DOI: 10.1016/j.plantsci.2014.10.002] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 10/06/2014] [Accepted: 10/09/2014] [Indexed: 05/18/2023]
Abstract
Progress in improving abiotic stress tolerance of crop plants using classic breeding and selection approaches has been slow. This has generally been blamed on the lack of reliable traits and phenotyping methods for stress tolerance. In crops, abiotic stress tolerance is most often measured in terms of yield-capacity under adverse weather conditions. "Yield" is a complex trait and is determined by growth and developmental processes which are controlled by environmental signals throughout the life cycle of the plant. The use of model systems has allowed us to gradually unravel how plants grow and develop, but our understanding of the flexibility and opportunistic nature of plant development and its capacity to adapt growth to environmental cues is still evolving. There is genetic variability for the capacity to maintain yield and productivity under abiotic stress conditions in crop plants such as cereals. Technological progress in various domains has made it increasingly possible to mine that genetic variability and develop a better understanding about the basic mechanism of plant growth and abiotic stress tolerance. The aim of this paper is not to give a detailed account of all current research progress, but instead to highlight some of the current research trends that may ultimately lead to strategies for stress-proofing crop species. The focus will be on abiotic stresses that are most often associated with climate change (drought, heat and cold) and those crops that are most important for human nutrition, the cereals.
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Affiliation(s)
- Rudy Dolferus
- CSIRO, Agriculture Flagship, GPO Box 1600, Canberra, ACT 2601, Australia.
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