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Zhou Z, Feng J, Huo J, Qiu S, Zhang P, Wang Y, Li Q, Li Y, Han C, Feng X, Duan Y, Chen R, Xiao Y, He Y, Zhang L, Chen W. Versatile CYP98A enzymes catalyse meta-hydroxylation reveals diversity of salvianolic acids biosynthesis. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1536-1548. [PMID: 38226779 PMCID: PMC11123398 DOI: 10.1111/pbi.14284] [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: 09/12/2023] [Revised: 12/08/2023] [Accepted: 12/18/2023] [Indexed: 01/17/2024]
Abstract
Salvianolic acids (SA), such as rosmarinic acid (RA), danshensu (DSS), and their derivative salvianolic acid B (SAB), etc. widely existed in Lamiaceae and Boraginaceae families, are of interest due to medicinal properties in the pharmaceutical industries. Hundreds of studies in past decades described that 4-coumaroyl-CoA and 4-hydroxyphenyllactic acid (4-HPL) are common substrates to biosynthesize SA with participation of rosmarinic acid synthase (RAS) and cytochrome P450 98A (CYP98A) subfamily enzymes in different plants. However, in our recent study, several acyl donors and acceptors included DSS as well as their ester-forming products all were determined in SA-rich plants, which indicated that previous recognition to SA biosynthesis is insufficient. Here, we used Salvia miltiorrhiza, a representative important medicinal plant rich in SA, to elucidate the diversity of SA biosynthesis. Various acyl donors as well as acceptors are catalysed by SmRAS to form precursors of RA and two SmCYP98A family members, SmCYP98A14 and SmCYP98A75, are responsible for different positions' meta-hydroxylation of these precursors. SmCYP98A75 preferentially catalyses C-3' hydroxylation, and SmCYP98A14 preferentially catalyses C-3 hydroxylation in RA generation. In addition, relative to C-3' hydroxylation of the acyl acceptor moiety in RA biosynthesis, SmCYP98A75 has been verified as the first enzyme that participates in DSS formation. Furthermore, SmCYP98A enzymes knockout resulted in the decrease and overexpression leaded to dramatic increase of SA accumlation. Our study provides new insights into SA biosynthesis diversity in SA-abundant species and versatility of CYP98A enzymes catalytic preference in meta-hydroxylation reactions. Moreover, CYP98A enzymes are ideal metabolic engineering targets to elevate SA content.
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Affiliation(s)
- Zheng Zhou
- Navy Special Medical CentreSecond Military Medical UniversityShanghaiChina
- Department of Pharmacy, Changzheng HospitalSecond Military Medical UniversityShanghaiChina
| | - Jingxian Feng
- The MOE Key Laboratory for Standardization of Chinese Medicines and the SHTCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, The MOE Innovation Centre for Basic Medicine Research on Qi‐Blood TCM TheoriesInstitute of Chinese Materia Medica, Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Juncheng Huo
- Department of Pharmacy, Changzheng HospitalSecond Military Medical UniversityShanghaiChina
| | - Shi Qiu
- The MOE Key Laboratory for Standardization of Chinese Medicines and the SHTCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, The MOE Innovation Centre for Basic Medicine Research on Qi‐Blood TCM TheoriesInstitute of Chinese Materia Medica, Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Pan Zhang
- The MOE Key Laboratory for Standardization of Chinese Medicines and the SHTCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, The MOE Innovation Centre for Basic Medicine Research on Qi‐Blood TCM TheoriesInstitute of Chinese Materia Medica, Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yun Wang
- Biomedical Innovation R&D Center, School of MedicineShanghai UniversityShanghaiChina
| | - Qing Li
- Department of Pharmacy, Changzheng HospitalSecond Military Medical UniversityShanghaiChina
| | - Yajing Li
- The MOE Key Laboratory for Standardization of Chinese Medicines and the SHTCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, The MOE Innovation Centre for Basic Medicine Research on Qi‐Blood TCM TheoriesInstitute of Chinese Materia Medica, Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Cuicui Han
- Navy Special Medical CentreSecond Military Medical UniversityShanghaiChina
| | - Xiaobing Feng
- Navy Special Medical CentreSecond Military Medical UniversityShanghaiChina
| | - Yonghao Duan
- The MOE Key Laboratory for Standardization of Chinese Medicines and the SHTCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, The MOE Innovation Centre for Basic Medicine Research on Qi‐Blood TCM TheoriesInstitute of Chinese Materia Medica, Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Ruibin Chen
- School of PharmacySecond Military Medical UniversityShanghaiChina
| | - Ying Xiao
- The MOE Key Laboratory for Standardization of Chinese Medicines and the SHTCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, The MOE Innovation Centre for Basic Medicine Research on Qi‐Blood TCM TheoriesInstitute of Chinese Materia Medica, Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Ying He
- Navy Special Medical CentreSecond Military Medical UniversityShanghaiChina
| | - Lei Zhang
- Biomedical Innovation R&D Center, School of MedicineShanghai UniversityShanghaiChina
- School of PharmacySecond Military Medical UniversityShanghaiChina
| | - Wansheng Chen
- Department of Pharmacy, Changzheng HospitalSecond Military Medical UniversityShanghaiChina
- The MOE Key Laboratory for Standardization of Chinese Medicines and the SHTCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, The MOE Innovation Centre for Basic Medicine Research on Qi‐Blood TCM TheoriesInstitute of Chinese Materia Medica, Shanghai University of Traditional Chinese MedicineShanghaiChina
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2
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Rau D, Attene G, Rodriguez M, Baghino L, Pisanu AB, Sanna D, Acquadro A, Portis E, Comino C. The Population Structure of a Globe Artichoke Worldwide Collection, as Revealed by Molecular and Phenotypic Analyzes. FRONTIERS IN PLANT SCIENCE 2022; 13:898740. [PMID: 35865281 PMCID: PMC9294547 DOI: 10.3389/fpls.2022.898740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/13/2022] [Indexed: 05/27/2023]
Abstract
The knowledge of the organization of the domesticated gene pool of crop species is an essential requirement to understand crop evolution, to rationalize conservation programs, and to support practical decisions in plant breeding. Here, we integrate simple sequence repeat (SSR) analysis and phenotypic characterization to investigate a globe artichoke collection that comprises most of the varieties cultivated worldwide. We show that the cultivated gene pool of globe artichoke includes five distinct genetic groups associated with the major phenotypic typologies: Catanesi (which based on our analysis corresponds to Violetti di Provenza), Spinosi, Violetti di Toscana, Romaneschi, and Macau. We observed that 17 and 11% of the molecular and phenotypic variance, respectively, is between these groups, while within groups, strong linkage disequilibrium and heterozygote excess are evident. The divergence between groups for quantitative traits correlates with the average broad-sense heritability within the groups. The phenotypic divergence between groups for both qualitative and quantitative traits is strongly and positively correlated with SSR divergence (FST) between groups. All this implies a low population size and strong bottleneck effects, and indicates a long history of clonal propagation and selection during the evolution of the domesticated gene pool of globe artichoke. Moreover, the comparison between molecular and phenotypic population structures suggests that harvest time, plant architecture (i.e., plant height, stem length), leaf spininess, head morphology (i.e., head shape, bract shape, spininess) together with the number of heads per plant were the main targets of selection during the evolution of the cultivated germplasm. We emphasize our findings in light of the potential exploitation of this collection for association mapping studies.
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Affiliation(s)
- Domenico Rau
- Dipartimento di Agraria, Sezione di Agronomia, Coltivazioni Erbacee e Genetica (SACEG), Università degli Studi di Sassari, Sassari, Italy
| | - Giovanna Attene
- Dipartimento di Agraria, Sezione di Agronomia, Coltivazioni Erbacee e Genetica (SACEG), Università degli Studi di Sassari, Sassari, Italy
| | - Monica Rodriguez
- Dipartimento di Agraria, Sezione di Agronomia, Coltivazioni Erbacee e Genetica (SACEG), Università degli Studi di Sassari, Sassari, Italy
| | - Limbo Baghino
- Agenzia AGRIS Sardegna (Servizio Ricerca sui Sistemi Colturali Erbacei, Settore Innovazione dei Modelli Gestionali e Studio Della Biodiversità Nelle Colture Intensive), Oristano, Italy
| | - Anna Barbara Pisanu
- Agenzia AGRIS Sardegna (Servizio Ricerca sui Sistemi Colturali Erbacei, Settore Innovazione dei Modelli Gestionali e Studio Della Biodiversità Nelle Colture Intensive), Oristano, Italy
| | - Davide Sanna
- Agenzia AGRIS Sardegna (Servizio Ricerca sui Sistemi Colturali Erbacei, Settore Innovazione dei Modelli Gestionali e Studio Della Biodiversità Nelle Colture Intensive), Oristano, Italy
| | - Alberto Acquadro
- Dipartimento di Scienze Agrarie, Forestali ed Alimentari (DISAFA), Genetica Vegetale (Plant Genetics), Università degli Studi di Torino, Turin, Italy
| | - Ezio Portis
- Dipartimento di Scienze Agrarie, Forestali ed Alimentari (DISAFA), Genetica Vegetale (Plant Genetics), Università degli Studi di Torino, Turin, Italy
| | - Cinzia Comino
- Dipartimento di Scienze Agrarie, Forestali ed Alimentari (DISAFA), Genetica Vegetale (Plant Genetics), Università degli Studi di Torino, Turin, Italy
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Ernst L, Wohl J, Bauerbach E, Petersen M. Hydroxycinnamoyltransferase and CYP98 in phenolic metabolism in the rosmarinic acid-producing hornwort Anthoceros agrestis. PLANTA 2022; 255:75. [PMID: 35235057 PMCID: PMC8891189 DOI: 10.1007/s00425-022-03856-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 02/12/2022] [Indexed: 06/14/2023]
Abstract
MAIN CONCLUSION Anthoceros agrestis hydroxycinnamoyltransferase accepts shikimic and 3-hydroxyanthranilic acids while hydroxycinnamoylester/amide 3-hydroxylase (CYP98A147) preferred p-coumaroyl-(3-hydroxy)anthranilic acid compared to the shikimic acid derivative. Alternative pathways towards rosmarinic acid have to be considered. Rosmarinic acid (RA) is a well-known ester of caffeic acid and 3,4-dihydroxyphenyllactic acid. In the search for enzymes involved in RA biosynthesis in the hornwort Anthoceros agrestis, the hydroxycinnamoyltransferase sequence with the highest similarity to rosmarinic acid synthase from Lamiaceae has been amplified and heterologously expressed in Escherichia coli. In parallel, the single cytochrome P450 sequence belonging to the CYP98 group in Anthoceros agrestis was isolated and expressed in Saccharomyces cerevisiae which did not result in protein formation. Codon optimization and co-expression with NADPH:cytochrome P450 reductase (CPR) from Coleus blumei resulted in the formation of active enzymes. Both, the hydroxycinnamoyltransferase and CYP98 were characterized with respect to their temperature and pH optimum as well as their substrate acceptance. The hydroxycinnamoyltransferase (AaHCT6) readily accepted p-coumaroyl- and caffeoyl-CoA with a slightly higher affinity towards p-coumaroyl-CoA. The best acceptor substrate was shikimic acid (Km 25 µM with p-coumaroyl-CoA) followed by 3-hydroxyanthranilic acid (Km 153 µM with p-coumaroyl-CoA). Another accepted substrate was 2,3-dihydroxybenzoic acid. Anthranilic acid and 4-hydroxyphenyllactic acid (as precursor for RA) were not used as substrates. p-Coumaroylesters and -amides are substrates hydroxylated by CYP98 hydroxylases. The only CYP98 sequence from Anthoceros agrestis is CYP98A147. The best substrates for the NADPH-dependent hydroxylation were p-coumaroylanthranilic and p-coumaroyl-3-hydroxyanthranilic acids while p-coumaroylshikimic and p-coumaroyl-4-hydroxyphenyllactic acids were poor substrates. The biosynthetic pathway towards rosmarinic acid thus still remains open and other enzyme classes as well as an earlier introduction of the 3-hydroxyl group to afford the caffeic acid substitution pattern must be taken into consideration.
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Affiliation(s)
- Lucien Ernst
- Institut für Pharmazeutische Biologie und Biotechnologie, Philipps-Universität Marburg, Robert-Koch-Str. 4, 35037, Marburg, Germany
| | - Julia Wohl
- Institut für Pharmazeutische Biologie und Biotechnologie, Philipps-Universität Marburg, Robert-Koch-Str. 4, 35037, Marburg, Germany
| | - Elke Bauerbach
- Institut für Pharmazeutische Biologie und Biotechnologie, Philipps-Universität Marburg, Robert-Koch-Str. 4, 35037, Marburg, Germany
| | - Maike Petersen
- Institut für Pharmazeutische Biologie und Biotechnologie, Philipps-Universität Marburg, Robert-Koch-Str. 4, 35037, Marburg, Germany.
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Blanco E, Musio B, Todisco S, Mastrorilli P, Gallo V, Sonnante G. Non-targeted NMR approach to unveil and promote the biodiversity of globe artichoke in the Mediterranean area. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Miguel S, Legrand G, Duriot L, Delporte M, Menin B, Michel C, Olry A, Chataigné G, Salwinski A, Bygdell J, Vercaigne D, Wingsle G, Hilbert JL, Bourgaud F, Hehn A, Gagneul D. A GDSL lipase-like from Ipomoea batatas catalyzes efficient production of 3,5-diCQA when expressed in Pichia pastoris. Commun Biol 2020; 3:673. [PMID: 33188250 PMCID: PMC7666189 DOI: 10.1038/s42003-020-01387-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 10/09/2020] [Indexed: 12/18/2022] Open
Abstract
The synthesis of 3,5-dicaffeoylquinic acid (3,5-DiCQA) has attracted the interest of many researchers for more than 30 years. Recently, enzymes belonging to the BAHD acyltransferase family were shown to mediate its synthesis, albeit with notably low efficiency. In this study, a new enzyme belonging to the GDSL lipase-like family was identified and proven to be able to transform chlorogenic acid (5-O-caffeoylquinic acid, 5-CQA, CGA) in 3,5-DiCQA with a conversion rate of more than 60%. The enzyme has been produced in different expression systems but has only been shown to be active when transiently synthesized in Nicotiana benthamiana or stably expressed in Pichia pastoris. The synthesis of the molecule could be performed in vitro but also by a bioconversion approach beginning from pure 5-CQA or from green coffee bean extract, thereby paving the road for producing it on an industrial scale. Miguel et al. identify a new enzyme belonging to the GDSL lipase-like family that is involved in the final stage of transformation of 5-CQA into 3,5-diCQA. This enzyme is able to realize an efficient transformation by over 60%, making the transformation process a valuable technological tool that can be easily transferred on an industrial scale.
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Affiliation(s)
- Sissi Miguel
- Plant Advanced Technologies, Vandœuvre-lès-Nancy, France
| | - Guillaume Legrand
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, ICV - Institut Charles Viollette, 59000, Lille, France
| | - Léonor Duriot
- Plant Advanced Technologies, Vandœuvre-lès-Nancy, France
| | - Marianne Delporte
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, ICV - Institut Charles Viollette, 59000, Lille, France
| | - Barbara Menin
- Université de Lorraine-INRAE, LAE, 54000, Nancy, France
| | - Cindy Michel
- Plant Advanced Technologies, Vandœuvre-lès-Nancy, France
| | | | - Gabrielle Chataigné
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, ICV - Institut Charles Viollette, 59000, Lille, France
| | | | - Joakim Bygdell
- Chemistry Department, Umeå University, 90183, Umeå, Sweden
| | - Dominique Vercaigne
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, ICV - Institut Charles Viollette, 59000, Lille, France
| | - Gunnar Wingsle
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Jean Louis Hilbert
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, ICV - Institut Charles Viollette, 59000, Lille, France
| | | | - Alain Hehn
- Université de Lorraine-INRAE, LAE, 54000, Nancy, France.
| | - David Gagneul
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, ICV - Institut Charles Viollette, 59000, Lille, France.
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Puglia GD, Prjibelski AD, Vitale D, Bushmanova E, Schmid KJ, Raccuia SA. Hybrid transcriptome sequencing approach improved assembly and gene annotation in Cynara cardunculus (L.). BMC Genomics 2020; 21:317. [PMID: 32819282 PMCID: PMC7441626 DOI: 10.1186/s12864-020-6670-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 03/13/2020] [Indexed: 12/11/2022] Open
Abstract
Background The investigation of transcriptome profiles using short reads in non-model organisms, which lack of well-annotated genomes, is limited by partial gene reconstruction and isoform detection. In contrast, long-reads sequencing techniques revealed their potential to generate complete transcript assemblies even when a reference genome is lacking. Cynara cardunculus var. altilis (DC) (cultivated cardoon) is a perennial hardy crop adapted to dry environments with many industrial and nutraceutical applications due to the richness of secondary metabolites mostly produced in flower heads. The investigation of this species benefited from the recent release of a draft genome, but the transcriptome profile during the capitula formation still remains unexplored. In the present study we show a transcriptome analysis of vegetative and inflorescence organs of cultivated cardoon through a novel hybrid RNA-seq assembly approach utilizing both long and short RNA-seq reads. Results The inclusion of a single Nanopore flow-cell output in a hybrid sequencing approach determined an increase of 15% complete assembled genes and 18% transcript isoforms respect to short reads alone. Among 25,463 assembled unigenes, we identified 578 new genes and updated 13,039 gene models, 11,169 of which were alternatively spliced isoforms. During capitulum development, 3424 genes were differentially expressed and approximately two-thirds were identified as transcription factors including bHLH, MYB, NAC, C2H2 and MADS-box which were highly expressed especially after capitulum opening. We also show the expression dynamics of key genes involved in the production of valuable secondary metabolites of which capitulum is rich such as phenylpropanoids, flavonoids and sesquiterpene lactones. Most of their biosynthetic genes were strongly transcribed in the flower heads with alternative isoforms exhibiting differentially expression levels across the tissues. Conclusions This novel hybrid sequencing approach allowed to improve the transcriptome assembly, to update more than half of annotated genes and to identify many novel genes and different alternatively spliced isoforms. This study provides new insights on the flowering cycle in an Asteraceae plant, a valuable resource for plant biology and breeding in Cynara and an effective method for improving gene annotation.
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Affiliation(s)
- Giuseppe D Puglia
- Institute for Plant Breeding, Seed Science and Population Genetics, University of Hohenheim, Fruwirthstrasse 21, 70599, Stuttgart, Germany. .,Consiglio Nazionale delle Ricerche, Istituto per i Sistemi Agricoli e Forestali del Mediterraneo (CNR-ISAFOM) U.O.S. Catania, Via Empedocle, 58, 95128, Catania, Italy.
| | - Andrey D Prjibelski
- Center for Algorithmic Biotechnology, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Domenico Vitale
- Consiglio Nazionale delle Ricerche, Istituto per i Sistemi Agricoli e Forestali del Mediterraneo (CNR-ISAFOM) U.O.S. Catania, Via Empedocle, 58, 95128, Catania, Italy
| | - Elena Bushmanova
- Center for Algorithmic Biotechnology, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Karl J Schmid
- Institute for Plant Breeding, Seed Science and Population Genetics, University of Hohenheim, Fruwirthstrasse 21, 70599, Stuttgart, Germany.
| | - Salvatore A Raccuia
- Consiglio Nazionale delle Ricerche, Istituto per i Sistemi Agricoli e Forestali del Mediterraneo (CNR-ISAFOM) U.O.S. Catania, Via Empedocle, 58, 95128, Catania, Italy
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Cheevarungnapakul K, Khaksar G, Panpetch P, Boonjing P, Sirikantaramas S. Identification and Functional Characterization of Genes Involved in the Biosynthesis of Caffeoylquinic Acids in Sunflower ( Helianthus annuus L.). FRONTIERS IN PLANT SCIENCE 2019; 10:968. [PMID: 31417585 PMCID: PMC6685037 DOI: 10.3389/fpls.2019.00968] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/10/2019] [Indexed: 05/25/2023]
Abstract
Sunflower (Helianthus annuus L.) sprouts accumulate high amounts of caffeoylquinic acids (CQAs) including chlorogenic acid (5-CQA) and 1,5-diCQA. These compounds, which can be found in many plants, including tomato, globe artichoke, and chicory, have many health benefits, including antioxidant, antihepatotoxic, and antiglycative activities. However, CQA profiles and biosynthesis have not previously been studied in sunflower sprouts. In the present study, we found that 5-CQA and 1,5-diCQA were the major CQAs found in sunflower sprouts. We also identified minor accumulation of other CQAs, namely 3-CQA, 4-CQA, 3,4-diCQA, and 4,5-diCQA. According to genome-wide identification and phylogenetic analysis of genes involved in CQA biosynthesis in sunflower, three genes (HaHQT1, HaHQT2, and HaHQT3) encoding hydroxycinnamoyl CoA:quinate hydroxycinnamoyl transferase (HQT) and two genes (HaHCT1 and HaHCT2) encoding hydroxycinnamoyl CoA:shikimate/quinate hydroxycinnamoyl transferase (HCT) were identified. Expression analysis of these five genes in hypocotyls and cotyledons strongly suggested that HaHQT2 could be the main enzyme responsible for CQA biosynthesis, as HaHQT2 had the highest expression levels. In addition, when transiently expressed in the leaves of Nicotiana benthamiana, all three HaHQTs, which were soluble and not membrane-bound enzymes, could increase the content of 5-CQA by up to 94% compared to that in a control. Overall, our results increase understanding of CQA biosynthesis in sunflower sprouts and could be exploited by plant breeders to enhance accumulation of health-promoting CQAs in these plants.
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Affiliation(s)
- Ketthida Cheevarungnapakul
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Gholamreza Khaksar
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Pawinee Panpetch
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Patwira Boonjing
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Supaart Sirikantaramas
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Molecular Sensory Science Center, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
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8
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Huang Q, Xu M, Zhang H, He D, Kong Y, Chen L, Song H. Transcriptome and proteome analyses of the molecular mechanisms associated with coix seed nutritional quality in the process of breeding. Food Chem 2018; 272:549-558. [PMID: 30309580 DOI: 10.1016/j.foodchem.2018.07.116] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 07/15/2018] [Accepted: 07/17/2018] [Indexed: 12/11/2022]
Abstract
In present study, the content of main nutrients in wild coix seed were significantly higher than cultivated coix seed. Transcriptome and proteome were combined to provide new insight of the molecular mechanisms linked to nutritional quality of wild coix seed and cultivated coix seed by RNA sequencing and isobaric tags for relative and absolute quantification techniques. A total of 20,039 genes and 471 proteins exhibited differential expression level in cultivated coix seed when compared with wild coix seed. These genes and proteins revealed that the pathway of flavonoids biosynthesis, starch and sucrose metabolism, lipid metabolism and amino acid metabolism were linked to nutritional quality of coix seed. Our results provided transcriptomics and proteomics information with respect to the molecular mechanisms of nutritional changes of coix seed, identified key genes and proteins that associated with the metabolism and accumulation of nutrients, and helped clarify the mechanisms of nutrient differences.
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Affiliation(s)
- Qun Huang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian 350002, China
| | - Meiyu Xu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian 350002, China
| | - Hailu Zhang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Dan He
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Yuting Kong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Lei Chen
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian 350002, China.
| | - Hongbo Song
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian 350002, China.
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9
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Blanco E, Sabetta W, Danzi D, Negro D, Passeri V, Lisi AD, Paolocci F, Sonnante G. Isolation and Characterization of the Flavonol Regulator CcMYB12 From the Globe Artichoke [ Cynara cardunculus var. scolymus (L.) Fiori]. FRONTIERS IN PLANT SCIENCE 2018; 9:941. [PMID: 30026747 PMCID: PMC6042477 DOI: 10.3389/fpls.2018.00941] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 06/12/2018] [Indexed: 05/07/2023]
Abstract
Flavonoids are a well-studied group of secondary metabolites, belonging to the phenylpropanoid pathway. Flavonoids are known to exhibit health promoting effects such as antioxidant capacities, anti-cancer and anti-inflammatory activity. Globe artichoke is an important source of bioactive phenolic compounds, including flavonoids. To study the regulation of their biosynthesis, a R2R3-MYB transcription factor, CcMYB12, was isolated from artichoke leaves. Phylogenetic analysis showed that this protein belongs to the MYB subgroup 7 (flavonol-specific MYB), which includes Arabidopsis AtMYB12, grapevine VvMYBF1, and tomato SlMYB12. CcMYB12 transcripts were detected specifically in artichoke immature inflorescence and young leaves and overlapped with the profiles of flavonol biosynthetic genes. Electrophoretic mobility shift assays (EMSAs) revealed that recombinant CcMYB12 protein is able to bind to ACII element, a DNA binding site ubiquitously present in the promoters of genes encoding flavonol biosynthetic enzymes. In transgenic Arabidopsis plants, the overexpression of CcMYB12 activated the expression of endogenous flavonol biosynthesis genes, leading to an increase of flavonol accumulation and a decrease of anthocyanins in leaves. Likewise, in transgenic tobacco petals and leaves, the overexpression of CcMYB12 decreased anthocyanin levels and increased flavonols.
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Affiliation(s)
- Emanuela Blanco
- Institute of Biosciences and Bioresources, National Research Council, Bari, Italy
- *Correspondence: Emanuela Blanco,
| | - Wilma Sabetta
- Institute of Biosciences and Bioresources, National Research Council, Bari, Italy
| | - Donatella Danzi
- Institute of Biosciences and Bioresources, National Research Council, Bari, Italy
| | - Donatella Negro
- Institute of Biosciences and Bioresources, National Research Council, Bari, Italy
| | - Valentina Passeri
- Institute of Biosciences and Bioresources, National Research Council, Perugia, Italy
| | - Antonino De Lisi
- Institute of Biosciences and Bioresources, National Research Council, Bari, Italy
| | - Francesco Paolocci
- Institute of Biosciences and Bioresources, National Research Council, Perugia, Italy
| | - Gabriella Sonnante
- Institute of Biosciences and Bioresources, National Research Council, Bari, Italy
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10
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Gianoglio S, Moglia A, Acquadro A, Comino C, Portis E. The genome-wide identification and transcriptional levels of DNA methyltransferases and demethylases in globe artichoke. PLoS One 2017; 12:e0181669. [PMID: 28746368 PMCID: PMC5529103 DOI: 10.1371/journal.pone.0181669] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 07/05/2017] [Indexed: 11/19/2022] Open
Abstract
Changes to the cytosine methylation status of DNA, driven by the activity of C5 methyltransferases (C5-MTases) and demethylases, exert an important influence over development, transposon movement, gene expression and imprinting. Three groups of C5-MTase enzymes have been identified in plants, namely MET (methyltransferase 1), CMT (chromomethyltransferases) and DRM (domains rearranged methyltransferases). Here the repertoire of genes encoding C5-MTase and demethylase by the globe artichoke (Cynara cardunculus var. scolymus) is described, based on sequence homology, a phylogenetic analysis and a characterization of their functional domains. A total of ten genes encoding C5-MTase (one MET, five CMTs and four DRMs) and five demethylases was identified. An analysis of their predicted product's protein structure suggested an extensive level of conservation has been retained by the C5-MTases. Transcriptional profiling based on quantitative real time PCR revealed a number of differences between the genes encoding maintenance and de novo methyltransferases, sometimes in a tissue- or development-dependent manner, which implied a degree of functional specialization.
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Affiliation(s)
- Silvia Gianoglio
- Department of Agricultural, Forest and Food Sciences, University of Torino, Grugliasco, Italy
| | - Andrea Moglia
- Department of Agricultural, Forest and Food Sciences, University of Torino, Grugliasco, Italy
| | - Alberto Acquadro
- Department of Agricultural, Forest and Food Sciences, University of Torino, Grugliasco, Italy
| | - Cinzia Comino
- Department of Agricultural, Forest and Food Sciences, University of Torino, Grugliasco, Italy
| | - Ezio Portis
- Department of Agricultural, Forest and Food Sciences, University of Torino, Grugliasco, Italy
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11
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Ferro AM, Ramos P, Guerreiro O, Jerónimo E, Pires I, Capel C, Capel J, Lozano R, Duarte MF, Oliveira MM, Gonçalves S. Impact of novel SNPs identified in Cynara cardunculus genes on functionality of proteins regulating phenylpropanoid pathway and their association with biological activities. BMC Genomics 2017; 18:183. [PMID: 28212611 PMCID: PMC5314637 DOI: 10.1186/s12864-017-3534-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 02/02/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cynara cardunculus L. offers a natural source of phenolic compounds with the predominant molecule being chlorogenic acid. Chlorogenic acid is gaining interest due to its involvement in various biological properties such as, antibacterial, antifungal, antioxidant, hepatoprotective, and anticarcinogenic activities. RESULTS In this work we screened a Cynara cardunculus collection for new allelic variants in key genes involved in the chlorogenic acid biosynthesis pathway. The target genes encode p-coumaroyl ester 3'-hydroxylase (C3'H) and hydroxycinnamoyl-CoA: quinate hydroxycinnamoyl transferase (HQT), both participating in the synthesis of chlorogenic acid. Using high-resolution melting, the C3'H gene proved to be highly conserved with only 4 haplotypes while, for HQT, 17 haplotypes were identified de novo. The putative influence of the identified polymorphisms in C3'H and HQT proteins was further evaluated using bioinformatics tools. We could identify some polymorphisms that may lead to protein conformational changes. Chlorogenic acid content, antioxidant and antithrombin activities were also evaluated in Cc leaf extracts and an association analysis was performed to assess a putative correlation between these traits and the identified polymorphisms. CONCLUSION In this work we identified allelic variants with putative impact on C3'H and HQT proteins which are significantly associated with chlorogenic acid content and antioxidant activity. Further study of these alleles should be explored to assess putative relevance as genetic markers correlating with Cynara cardunculus biological properties with further confirmation by functional analysis.
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Affiliation(s)
- Ana Margarida Ferro
- Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo (CEBAL), Instituto Politécnico de Beja (IPBeja), Rua Pedro Soares, 7801-908 Beja, Portugal
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Av. da República, 2781-901 Oeiras, Portugal
| | - Patrícia Ramos
- Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo (CEBAL), Instituto Politécnico de Beja (IPBeja), Rua Pedro Soares, 7801-908 Beja, Portugal
- Centre for Research in Ceramics and Composite Materials (CICECO) and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Olinda Guerreiro
- Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo (CEBAL), Instituto Politécnico de Beja (IPBeja), Rua Pedro Soares, 7801-908 Beja, Portugal
- Centro de Investigação Interdisciplinar em Sanidade Animal (CIISA), Faculdade de Medicina Veterinária, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Eliana Jerónimo
- Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo (CEBAL), Instituto Politécnico de Beja (IPBeja), Rua Pedro Soares, 7801-908 Beja, Portugal
| | - Inês Pires
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Av. da República, 2781-901 Oeiras, Portugal
| | - Carmen Capel
- Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, 04120 Almeria, Spain
| | - Juan Capel
- Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, 04120 Almeria, Spain
| | - Rafael Lozano
- Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, 04120 Almeria, Spain
| | - Maria F. Duarte
- Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo (CEBAL), Instituto Politécnico de Beja (IPBeja), Rua Pedro Soares, 7801-908 Beja, Portugal
| | - M. Margarida Oliveira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Av. da República, 2781-901 Oeiras, Portugal
| | - Sónia Gonçalves
- Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo (CEBAL), Instituto Politécnico de Beja (IPBeja), Rua Pedro Soares, 7801-908 Beja, Portugal
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, CB101SA Cambridge, UK
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12
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Moglia A, Acquadro A, Eljounaidi K, Milani AM, Cagliero C, Rubiolo P, Genre A, Cankar K, Beekwilder J, Comino C. Genome-Wide Identification of BAHD Acyltransferases and In vivo Characterization of HQT-like Enzymes Involved in Caffeoylquinic Acid Synthesis in Globe Artichoke. FRONTIERS IN PLANT SCIENCE 2016; 7:1424. [PMID: 27721818 PMCID: PMC5033976 DOI: 10.3389/fpls.2016.01424] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 09/07/2016] [Indexed: 05/25/2023]
Abstract
Globe artichoke (Cynara cardunculus L. var. scolymus) is a rich source of compounds promoting human health (phytonutrients), among them caffeoylquinic acids (CQAs), mainly represented by chlorogenic acid (CGA), and dicaffeoylquinic acids (diCQAs). The enzymes involved in their biosynthesis belong to the large family of BAHD acyltransferases. Following a survey of the globe artichoke genome, we identified 69 BAHD proteins carrying the catalytic site (HXXXD). Their phylogenetic analysis together with another 43 proteins, from 21 species, representative of the BAHD family, highlighted their grouping in seven major clades. Nine globe artichoke acyltransferases clustered in a sub-group of Clade V, with 3 belonging to hydroxycinnamoyl-CoA:quinate hydroxycinnamoyl transferase (HQT) and 2 to hydroxycinnamoyl-CoA:shikimate/quinate hydroxycinnamoyl transferase (HCT) like proteins. We focused our attention on the former, HQT1, HQT2, and HQT3, as they are known to play a key role in CGA biosynthesis. The expression of genes coding for the three HQTs and correlation of expression with the CQA content is reported for different globe artichoke tissues. For the first time in the globe artichoke, we developed and applied the virus-induced gene silencing approach with the goal of assessing in vivo the effect of HQT1 silencing, which resulted in a marked reduction of both CGA and diCQAs. On the other hand, when the role of the three HQTs was assessed in leaves of Nicotiana benthamiana through their transient overexpression, significant increases in mono- and diCQAs content were observed. Using transient GFP fusion proteins expressed in N. benthamiana leaves we also established the sub-cellular localization of these three enzymes.
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Affiliation(s)
- Andrea Moglia
- Department of Agricultural, Forest and Food Sciences, University of TorinoGrugliasco, Italy
| | - Alberto Acquadro
- Department of Agricultural, Forest and Food Sciences, University of TorinoGrugliasco, Italy
| | - Kaouthar Eljounaidi
- Department of Agricultural, Forest and Food Sciences, University of TorinoGrugliasco, Italy
| | - Anna M. Milani
- Department of Agricultural, Forest and Food Sciences, University of TorinoGrugliasco, Italy
| | - Cecilia Cagliero
- Department of Drug Science and Technology, University of TorinoTorino, Italy
| | - Patrizia Rubiolo
- Department of Drug Science and Technology, University of TorinoTorino, Italy
| | - Andrea Genre
- Department of Life Sciences and Systems Biology, University of TorinoTorino, Italy
| | | | | | - Cinzia Comino
- Department of Agricultural, Forest and Food Sciences, University of TorinoGrugliasco, Italy
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13
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Legrand G, Delporte M, Khelifi C, Harant A, Vuylsteker C, Mörchen M, Hance P, Hilbert JL, Gagneul D. Identification and Characterization of Five BAHD Acyltransferases Involved in Hydroxycinnamoyl Ester Metabolism in Chicory. FRONTIERS IN PLANT SCIENCE 2016; 7:741. [PMID: 27375627 PMCID: PMC4893494 DOI: 10.3389/fpls.2016.00741] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/16/2016] [Indexed: 05/03/2023]
Abstract
Chicory (Cichorium intybus) accumulates caffeic acid esters with important significance for human health. In this study, we aim at a better understanding of the biochemical pathway of these bioactive compounds. Detailed metabolic analysis reveals that C. intybus predominantly accumulates caftaric and chicoric acids in leaves, whereas isochlorogenic acid (3,5-diCQA) was almost exclusively accumulated in roots. Chlorogenic acid (3-CQA) was equally distributed in all organs. Interestingly, distribution of the four compounds was related to leaf age. Induction with methyljasmonate (MeJA) of root cell suspension cultures results in an increase of 3-CQA and 3,5-diCQA contents. Expressed sequence tag libraries were screened using members of the BAHD family identified in Arabidopsis and tobacco as baits. The full-length cDNAs of five genes were isolated. Predicted amino acid sequence analyses revealed typical features of BAHD family members. Biochemical characterization of the recombinant proteins expressed in Escherichia coli showed that two genes encode HCTs (hydroxycinnamoyl-CoA:shikimate/quinate hydroxycinnamoyltransferases, HCT1 and HCT2) whereas, three genes encode HQTs (hydroxycinnamoyl-CoA:quinate hydroxycinnamoyltransferases, HQT1, HQT2, and HQT3). These results totally agreed with the phylogenetic analysis done with the predicted amino acid sequences. Quantitative real-time polymerase chain reaction analysis of gene expression indicated that HQT3, HCT1, and HCT2 might be more directly associated with CQA accumulation in cell culture in response to MeJA elicitation. Transient expression of HCT1 and HQT1 in tobacco resulted in a higher production of 3-CQA. All together these data confirm the involvement of functionally redundant genes in 3-CQA and related compound synthesis in the Asteraceae family.
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14
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Cloning and Characterization ofLonicera japonicap-Coumaroyl Ester 3-Hydroxylase Which Is Involved in the Biosynthesis of Chlorogenic Acid. Biosci Biotechnol Biochem 2014; 77:1403-9. [DOI: 10.1271/bbb.130011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Escamilla-Treviño LL, Shen H, Hernandez T, Yin Y, Xu Y, Dixon RA. Early lignin pathway enzymes and routes to chlorogenic acid in switchgrass (Panicum virgatum L.). PLANT MOLECULAR BIOLOGY 2014; 84:565-76. [PMID: 24190737 DOI: 10.1007/s11103-013-0152-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 10/26/2013] [Indexed: 05/07/2023]
Abstract
Studying lignin biosynthesis in Panicum virgatum (switchgrass) has provided a basis for generating plants with reduced lignin content and increased saccharification efficiency. Chlorogenic acid (CGA, caffeoyl quinate) is the major soluble phenolic compound in switchgrass, and the lignin and CGA biosynthetic pathways potentially share intermediates and enzymes. The enzyme hydroxycinnamoyl-CoA: quinate hydroxycinnamoyltransferase (HQT) is responsible for CGA biosynthesis in tobacco, tomato and globe artichoke, but there are no close orthologs of HQT in switchgrass or in other monocotyledonous plants with complete genome sequences. We examined available transcriptomic databases for genes encoding enzymes potentially involved in CGA biosynthesis in switchgrass. The protein products of two hydroxycinnamoyl-CoA shikimate/quinate hydroxycinnamoyltransferase (HCT) genes (PvHCT1a and PvHCT2a), closely related to lignin pathway HCTs from other species, were characterized biochemically and exhibited the expected HCT activity, preferring shikimic acid as acyl acceptor. We also characterized two switchgrass coumaroyl shikimate 3'-hydroxylase (C3'H) enzymes (PvC3'H1 and PvC3'H2); both of these cytochrome P450s had the capacity to hydroxylate 4-coumaroyl shikimate or 4-coumaroyl quinate to generate caffeoyl shikimate or CGA. Another switchgrass hydroxycinnamoyl transferase, PvHCT-Like1, is phylogenetically distant from HCTs or HQTs, but exhibits HQT activity, preferring quinic acid as acyl acceptor, and could therefore function in CGA biosynthesis. The biochemical features of the recombinant enzymes, the presence of the corresponding activities in plant protein extracts, and the expression patterns of the corresponding genes, suggest preferred routes to CGA in switchgrass.
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16
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Pandino G, Lombardo S, Moglia A, Portis E, Lanteri S, Mauromicale G. Leaf polyphenol profile and SSR-based fingerprinting of new segregant Cynara cardunculus genotypes. FRONTIERS IN PLANT SCIENCE 2014; 5:800. [PMID: 25653660 PMCID: PMC4300902 DOI: 10.3389/fpls.2014.00800] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 12/22/2014] [Indexed: 05/03/2023]
Abstract
The dietary value of many plant polyphenols lies in the protection given against degenerative pathologies. Their in planta role is associated with the host's defense response against biotic and abiotic stress. The polyphenol content of a given plant tissue is strongly influenced by the growing environment, but is also genetically determined. Plants belonging to the Cynara cardunculus species (globe artichoke and the cultivated and wild cardoon) accumulate substantial quantities of polyphenols mainly mono and di-caffeoylquinic acid (CQA) in their foliage. Transgressive segregation for CQA content in an F1 population bred from a cross between a globe artichoke and a cultivated cardoon led to the selection of eight segregants which accumulated more CQA in their leaves than did those of either of their parental genotypes. The selections were grown over two seasons to assess their polyphenol profile (CQAs, apigenin and luteolin derivatives and narirutin), and were also fingerprinted using a set of 217 microsatellite markers. The growing environment exerted a strong effect on polyphenol content, but two of the selections were able to accumulate up to an order of magnitude more CQA than either parent in both growing seasons. Since the species is readily vegetatively propagable, such genotypes can be straightforwardly exploited as a source of pharmaceutically valuable compounds, while their SSR-based fingerprinting will allow the genetic identity of clonally propagated material to be easily verified.
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Affiliation(s)
- Gaetano Pandino
- Dipartimento di Agricoltura, Alimentazione e Ambiente Università degli Studi di CataniaCatania, Italy
| | - Sara Lombardo
- Dipartimento di Agricoltura, Alimentazione e Ambiente Università degli Studi di CataniaCatania, Italy
| | - Andrea Moglia
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, Università degli Studi di TorinoGrugliasco, Italy
- *Correspondence: Andrea Moglia, Dipartimento di Scienze Agrarie, Forestali e Alimentari, Università degli Studi di Torino, Largo Paolo Braccini 2, 10095 Grugliasco, Italy e-mail:
| | - Ezio Portis
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, Università degli Studi di TorinoGrugliasco, Italy
| | - Sergio Lanteri
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, Università degli Studi di TorinoGrugliasco, Italy
| | - Giovanni Mauromicale
- Dipartimento di Agricoltura, Alimentazione e Ambiente Università degli Studi di CataniaCatania, Italy
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17
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Kim YB, Thwe AA, Kim YJ, Li X, Kim HH, Park PB, Suzuki T, Kim SJ, Park SU. Characterization of genes for a putative hydroxycinnamoyl-coenzyme A quinate transferase and p-coumarate 3'-hydroxylase and chlorogenic acid accumulation in tartary buckwheat. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:4120-6. [PMID: 23550515 DOI: 10.1021/jf4000659] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Tartary buckwheat ( Fagopyrum tataricum Gaertn.) contains a high level of flavonoid compounds, which have beneficial and pharmacological effects on health. In this study, we isolated full-length cDNAs encoding hydroxycinnamoyl-coenzyme A quinate hydroxycinnamoyltransferase (HQT) and p-coumarate 3'-hydroxylase (C3H), which are involved in chlorogenic acid (CGA) biosynthesis. We examined the expression levels of HQT and C3H using real-time RT-PCR in different organs and sprouts of two tartary buckwheat cultivars (Hokkai T8 and T10) and analyzed CGA content using high-performance liquid chromatography. Among the organs, the flowers in both cultivars showed the highest levels of CGA. We concluded that the expression pattern of FtHQT and FtC3H did not match the accumulation pattern of CGA in different organs of T8 and T10 cultivars. Gene expression and CGA content varied between the cultivars. We presume that FtHQT and FtC3H levels might be controlled by multiple metabolic pathways in different organs of tartary buckwheat. Probably, FtC3H might have a greater effect on CGA biosynthesis than FtHQT. Our results will be helpful for a greater understanding of CGA biosynthesis in tartary buckwheat.
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Affiliation(s)
- Yeon Bok Kim
- Department of Crop Science, Chungnam National University , 99 Daehak-ro, Yuseong-gu, Daejeon 305-764, Korea
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18
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Karamat F, Olry A, Doerper S, Vialart G, Ullmann P, Werck-Reichhart D, Bourgaud F, Hehn A. CYP98A22, a phenolic ester 3'-hydroxylase specialized in the synthesis of chlorogenic acid, as a new tool for enhancing the furanocoumarin concentration in Ruta graveolens. BMC PLANT BIOLOGY 2012; 12:152. [PMID: 22931486 PMCID: PMC3493272 DOI: 10.1186/1471-2229-12-152] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 08/07/2012] [Indexed: 05/08/2023]
Abstract
BACKGROUND Furanocoumarins are molecules with proven therapeutic properties and are produced in only a small number of medicinal plant species such as Ruta graveolens. In vivo, these molecules play a protective role against phytophageous insect attack. Furanocoumarins are members of the phenylpropanoids family, and their biosynthetic pathway is initiated from p-coumaroyl coA. The enzymes belonging to the CYP98A cytochrome P450 family have been widely described as being aromatic meta-hydroxylases of various substrates, such as p-coumaroyl ester derivatives, and are involved in the synthesis of coumarins such as scopoletin. In furanocoumarin-producing plants, these enzymes catalyze the step directly downstream of the junction with the furanocoumarin biosynthetic pathway and might indirectly impact their synthesis. RESULTS In this work, we describe the cloning and functional characterization of the first CYP98A encoding gene isolated from R. graveolens. Using Nicotiana benthamiana as a heterologous expression system, we have demonstrated that this enzyme adds a 3-OH to p-coumaroyl ester derivatives but is more efficient to convert p-coumaroyl quinate into chlorogenic acid than to metabolize p-coumaroyl shikimate. Plants exposed to UV-B stress showed an enhanced expression level of the corresponding gene. The R. graveolens cyp98a22 open reading frame and the orthologous Arabidopsis thaliana cyp98a3 open reading frame were overexpressed in stable transgenic Ruta plants. Both plant series were analyzed for their production of scopoletin and furanocoumarin. A detailed analysis indicates that both genes enhance the production of furanocoumarins but that CYP98A22, unlike CYP98A3, doesn't affect the synthesis of scopoletin. CONCLUSIONS The overexpression of CYP98A22 positively impacts the concentration of furanocoumarins in R. graveolens. This gene is therefore a valuable tool to engineer plants with improved therapeutical values that might also be more resistant to phytophageous insects.
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Affiliation(s)
- Fazeelat Karamat
- Université de Lorraine UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
- INRA UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
| | - Alexandre Olry
- Université de Lorraine UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
- INRA UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
| | - Sébastien Doerper
- Université de Lorraine UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
- INRA UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
| | - Guilhem Vialart
- Université de Lorraine UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
- INRA UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
| | | | | | - Frédéric Bourgaud
- Université de Lorraine UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
- INRA UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
| | - Alain Hehn
- Université de Lorraine UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
- INRA UMR 1121, Agronomie et Environnement Nancy-Colmar, ENSAIA 2 avenue de la forêt de Haye, 54505, Vandœuvre-lès-Nancy, France
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19
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Menin B, Comino C, Portis E, Moglia A, Cankar K, Bouwmeester HJ, Lanteri S, Beekwilder J. Genetic mapping and characterization of the globe artichoke (+)-germacrene A synthase gene, encoding the first dedicated enzyme for biosynthesis of the bitter sesquiterpene lactone cynaropicrin. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2012; 190:1-8. [PMID: 22608514 DOI: 10.1016/j.plantsci.2012.03.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 03/14/2012] [Accepted: 03/16/2012] [Indexed: 05/16/2023]
Abstract
Globe artichoke (Cynara cardunculus var. scolymus L., Asteraceae) is a perennial crop traditionally consumed as a vegetable in the Mediterranean countries and rich in nutraceutically and pharmaceutically active compounds, including phenolic and terpenoid compounds. Its bitter taste is caused by its high content of sesquiterpene lactones (STLs), such as cynaropicrin. The biosynthetic pathway responsible for STL biosynthesis in globe artichoke is unknown, but likely proceeds through germacrene A, as has been shown for other Asteraceae species. Here, we investigated the accumulation of cynaropicrin in different tissues of globe artichoke, and compared it to accumulation of phenolic compounds. Cynaropicrin concentration was highest in old leaves. A putative germacrene A synthase (GAS) gene was identified in a set of ~19,000 globe artichoke unigenes. When heterologously expressed in Escherichia coli, the putative globe artichoke GAS converted farnesyl diphosphate (FPP) into (+)-germacrene A. Among various tissues assayed, the level of globe artichoke GAS expression was highest in mature (six week old) leaves. A sequence polymorphism within a mapping population parent allowed the corresponding GAS gene to be positioned on a genetic map. This study reports the isolation, expression and mapping of a key gene involved in STL biosynthesis in C. cardunculus. This is a good basis for further investigation of this pathway.
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Affiliation(s)
- Barbara Menin
- DIVAPRA, Plant Genetics and Breeding, University of Torino, via L. da Vinci 44, 10095 Grugliasco (TO), Italy
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Falvo S, Di Carli M, Desiderio A, Benvenuto E, Moglia A, America T, Lanteri S, Acquadro A. 2-D DIGE analysis of UV-C radiation-responsive proteins in globe artichoke leaves. Proteomics 2012; 12:448-60. [PMID: 22162389 DOI: 10.1002/pmic.201100337] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 11/22/2011] [Accepted: 11/24/2011] [Indexed: 01/08/2023]
Abstract
Plants respond to ultraviolet stress inducing a self-defence through the regulation of specific gene family members. The UV acclimation is the result of biochemical and physiological processes, such as enhancement of the antioxidant enzymatic system and accumulation of UV-absorbing phenolic compounds (e.g. flavonoids). Globe artichoke is an attractive species for studying the protein network involved in UV stress response, being characterized by remarkable levels of inducible antioxidants. Proteomic tools can assist the evaluation of the expression patterns of UV-responsive proteins and we applied the difference in-gel electrophoresis (DIGE) technology for monitoring the globe artichoke proteome variation at four time points following an acute UV-C exposure. A total of 145 UV-C-modulated proteins were observed and 119 were identified by LC-MS/MS using a ∼144,000 customized Compositae protein database, which included about 19,000 globe artichoke unigenes. Proteins were Gene Ontology (GO) categorized, visualized on their pathways and their behaviour was discussed. A predicted protein interaction network was produced and highly connected hub-like proteins were highlighted. Most of the proteins differentially modulated were chloroplast located, involved in photosynthesis, sugar metabolisms, protein folding and abiotic stress. The identification of UV-C-responsive proteins may contribute to shed light on the molecular mechanisms underlying plant responses to UV stress.
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Affiliation(s)
- Sara Falvo
- DIVAPRA, University of Turin, Grugliasco, Torino, Italy
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Sonnante G, D'Amore R, Blanco E, Pierri CL, De Palma M, Luo J, Tucci M, Martin C. Novel hydroxycinnamoyl-coenzyme A quinate transferase genes from artichoke are involved in the synthesis of chlorogenic acid. PLANT PHYSIOLOGY 2010; 153:1224-38. [PMID: 20431089 PMCID: PMC2899911 DOI: 10.1104/pp.109.150144] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Accepted: 04/27/2010] [Indexed: 05/17/2023]
Abstract
Artichoke (Cynara cardunculus subsp. scolymus) extracts have high antioxidant capacity, due primarily to flavonoids and phenolic acids, particularly chlorogenic acid (5-caffeoylquinic acid [CGA]), dicaffeoylquinic acids, and caffeic acid, which are abundant in flower bracts and bioavailable to humans in the diet. The synthesis of CGA can occur following different routes in plant species, and hydroxycinnamoyl-coenzyme A transferases are important enzymes in these pathways. Here, we report on the isolation and characterization of two novel genes both encoding hydroxycinnamoyl-coenzyme A quinate transferases (HQT) from artichoke. The recombinant proteins (HQT1 and HQT2) were assayed after expression in Escherichia coli, and both showed higher affinity for quinate over shikimate. Their preferences for acyl donors, caffeoyl-coenzyme A or p-coumaroyl-coenzyme A, were examined. Modeling and docking analyses were used to propose possible pockets and residues involved in determining substrate specificities in the HQT enzyme family. Quantitative real-time polymerase chain reaction analysis of gene expression indicated that HQT1 might be more directly associated with CGA content. Transient and stable expression of HQT1 in Nicotiana resulted in a higher production of CGA and cynarin (1,3-dicaffeoylquinic acid). These findings suggest that several isoforms of HQT contribute to the synthesis of CGA in artichoke according to physiological needs and possibly following various metabolic routes.
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MESH Headings
- Acyltransferases/chemistry
- Acyltransferases/genetics
- Acyltransferases/metabolism
- Amino Acid Sequence
- Base Sequence
- Binding Sites
- Chlorogenic Acid/metabolism
- Cynara scolymus/enzymology
- Cynara scolymus/genetics
- DNA, Complementary/genetics
- DNA, Complementary/isolation & purification
- Enzyme Assays
- Escherichia coli/metabolism
- Gene Expression Regulation, Enzymologic
- Gene Expression Regulation, Plant
- Genes, Plant/genetics
- Kinetics
- Models, Biological
- Models, Molecular
- Molecular Sequence Data
- Organ Specificity/genetics
- Phylogeny
- Plant Proteins/chemistry
- Plant Proteins/genetics
- Plant Proteins/metabolism
- Plants, Genetically Modified
- Sequence Analysis, DNA
- Structural Homology, Protein
- Nicotiana/genetics
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Affiliation(s)
- Gabriella Sonnante
- Institute of Plant Genetics, National Research Council, 70126 Bari, Italy.
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Joët T, Salmona J, Laffargue A, Descroix F, Dussert S. Use of the growing environment as a source of variation to identify the quantitative trait transcripts and modules of co-expressed genes that determine chlorogenic acid accumulation. PLANT, CELL & ENVIRONMENT 2010; 33:1220-33. [PMID: 20199615 PMCID: PMC2904492 DOI: 10.1111/j.1365-3040.2010.02141.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Developing Coffea arabica seeds accumulate large amounts of chlorogenic acids (CGAs) as a storage form of phenylpropanoid derivatives, making coffee a valuable model to investigate the metabolism of these widespread plant phenolics. However, developmental and environmental regulations of CGA metabolism are poorly understood. In the present work, the expression of selected phenylpropanoid genes, together with CGA isomer profiles, was monitored throughout seed development across a wide set of contrasted natural environments. Although CGA metabolism was controlled by major developmental factors, the mean temperature during seed development had a direct impact on the time-window of CGA biosynthesis, as well as on final CGA isomer composition through subtle transcriptional regulations. We provide evidence that the variability induced by the environment is a useful tool to test whether CGA accumulation is quantitatively modulated at the transcriptional level, hence enabling detection of rate-limiting transcriptional steps [quantitative trait transcripts (QTTs)] for CGA biosynthesis. Variations induced by the environment also enabled a better description of the phenylpropanoid gene transcriptional network throughout seed development, as well as the detection of three temporally distinct modules of quantitatively co-expressed genes. Finally, analysis of metabolite-to-metabolite relationships revealed new biochemical characteristics of the isomerization steps that remain uncharacterized at the gene level.
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Affiliation(s)
- Thierry Joët
- IRD, UMR DIAPC, Pôle de Protection des Plantes, 97410 Saint Pierre, La Réunion, France.
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Portis E, Mauromicale G, Mauro R, Acquadro A, Scaglione D, Lanteri S. Construction of a reference molecular linkage map of globe artichoke (Cynara cardunculus var. scolymus). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2009; 120:59-70. [PMID: 19787331 DOI: 10.1007/s00122-009-1159-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2009] [Accepted: 09/11/2009] [Indexed: 05/07/2023]
Abstract
The genome organization of globe artichoke (Cynara cardunculus var. scolymus), unlike other species belonging to Asteraceae (=Compositae) family (i.e. sunflower, lettuce and chicory), remains largely unexplored. The species is highly heterozygous and suffers marked inbreeding depression when forced to self-fertilize. Thus a two-way pseudo-testcross represents the optimal strategy for linkage analysis. Here, we report linkage maps based on the progeny of a cross between globe artichoke (C. cardunculus var. scolymus) and cultivated cardoon (C. cardunculus var. altilis). The population was genotyped using a variety of PCR-based marker platforms, resulting in the identification of 708 testcross markers suitable for map construction. The male map consisted of 177 loci arranged in 17 major linkage groups, spanning 1,015.5 cM, while female map was built with 326 loci arranged into 20 major linkage groups, spanning 1,486.8 cM. The presence of 84 loci shared between these maps and those previously developed from a cross within globe artichoke allowed for map alignment and the definition of 17 homologous linkage groups, corresponding to the haploid number of the species. This will provide a favourable property for QTL scanning; furthermore, as 25 mapped markers (8%) correspond to coding regions, it has an additional value as functional map and might represent an important genetic tool for candidate gene studies in globe artichoke.
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Affiliation(s)
- E Portis
- DIVAPRA Plant Genetics and Breeding, University of Torino, via L. da Vinci 44, 10095, Grugliasco (Turin), Italy
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