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Ricciardi V, Crespan M, Maddalena G, Migliaro D, Brancadoro L, Maghradze D, Failla O, Toffolatti SL, De Lorenzis G. Novel loci associated with resistance to downy and powdery mildew in grapevine. FRONTIERS IN PLANT SCIENCE 2024; 15:1386225. [PMID: 38584944 PMCID: PMC10998452 DOI: 10.3389/fpls.2024.1386225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/06/2024] [Indexed: 04/09/2024]
Abstract
Among the main challenges in current viticulture, there is the increasing demand for sustainability in the protection from fungal diseases, such as downy mildew (DM) and powdery mildew (PM). Breeding disease-resistant grapevine varieties is a key strategy for better managing fungicide inputs. This study explores the diversity of grapevine germplasm (cultivated and wild) from Caucasus and neighboring areas to identify genotypes resistant to DM and PM, based on 13 Simple Sequence Repeat (SSR) loci and phenotypical (artificial pathogen inoculation) analysis, and to identify loci associated with DM and PM resistance, via Genome-Wide Association Analysis (GWAS) on Single Nucleotide Polymorphism (SNP) profiles. SSR analysis revealed resistant alleles for 16 out of 88 genotypes. Phenotypic data identified seven DM and 31 PM resistant genotypes. GWAS identified two new loci associated with DM resistance, located on chromosome 15 and 16 (designated as Rpv36 and Rpv37), and two with PM resistance, located on chromosome 6 and 17 (designated as Ren14 and Ren15). The four novel loci identified genomic regions rich in genes related to biotic stress response, such as genes involved in pathogen recognition, signal transduction and resistance response. This study highlights potential candidate genes associated with resistance to DM and PM, providing valuable insights for breeding programs for resistant varieties. To optimize their utilization, further functional characterization studies are recommended.
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Affiliation(s)
- Valentina Ricciardi
- Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy
| | - Manna Crespan
- Centro di Ricerca per la Viticoltura e l'Enologia, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Conegliano, Italy
| | - Giuliana Maddalena
- Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy
| | - Daniele Migliaro
- Centro di Ricerca per la Viticoltura e l'Enologia, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Conegliano, Italy
| | - Lucio Brancadoro
- Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy
| | - David Maghradze
- Faculty of Viticulture-Winemaking, Caucasus International University, Tbilisi, Georgia
- Faculty of Agricultural Sciences and Biosystems Engineering, Georgian Technical University, Tbilisi, Georgia
| | - Osvaldo Failla
- Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy
| | - Silvia Laura Toffolatti
- Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy
| | - Gabriella De Lorenzis
- Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy
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Kaya HB, Dilli Y, Oncu-Oner T, Ünal A. Exploring genetic diversity and population structure of a large grapevine ( Vitis vinifera L.) germplasm collection in Türkiye. FRONTIERS IN PLANT SCIENCE 2023; 14:1121811. [PMID: 37235025 PMCID: PMC10208073 DOI: 10.3389/fpls.2023.1121811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 04/06/2023] [Indexed: 05/28/2023]
Abstract
Grapevine (Vitis Vinifera L.) has been one of the significant perennial crops in widespread temperate climate regions since its domestication around 6000 years ago. Grapevine and its products, particularly wine, table grapes, and raisins, have significant economic importance not only in grapevine-growing countries but also worldwide. Grapevine cultivation in Türkiye dates back to ancient times, and Anatolia is considered one of the main grapevine migration routes around the Mediterranean basin. Turkish germplasm collection, conserved at the Turkish Viticulture Research Institutes, includes cultivars and wild relatives mainly collected in Türkiye, breeding lines, rootstock varieties, and mutants, but also cultivars of international origin. Genotyping with high-throughput markers enables the investigation of genetic diversity, population structure, and linkage disequilibrium, which are crucial for applying genomic-assisted breeding. Here, we present the results of a high-throughput genotyping-by-sequencing (GBS) study of 341 genotypes from grapevine germplasm collection at Manisa Viticulture Research Institute. A total of 272,962 high-quality single nucleotide polymorphisms (SNP) markers on the nineteen chromosomes were identified using genotyping-by-sequencing (GBS) technology. The high-density coverage of SNPs resulted in an average of 14,366 markers per chromosome, an average polymorphism information content (PIC) value of 0.23 and an expected heterozygosity (He) value of 0.28 indicating the genetic diversity within 341 genotypes. LD decayed very fast when r2 was between 0.45 and 0.2 and became flat when r2 was 0.05. The average LD decay for the entire genome was 30 kb when r2 = 0.2. The PCA and structure analysis did not distinguish the grapevine genotypes based on different origins, highlighting the occurrence of gene flow and a high amount of admixture. Analysis of molecular variance (AMOVA) results indicated a high level of genetic differentiation within populations, while variation among populations was extremely low. This study provides comprehensive information on the genetic diversity and population structure of Turkish grapevine genotypes.
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Affiliation(s)
- Hilal Betul Kaya
- Department of Bioengineering, Manisa Celal Bayar University, Manisa, Türkiye
| | - Yıldız Dilli
- Republic of Türkiye Ministry of Agriculture and Forestry, Viticulture Research Institute, Manisa, Türkiye
| | - Tulay Oncu-Oner
- Department of Bioengineering, Manisa Celal Bayar University, Manisa, Türkiye
| | - Akay Ünal
- Republic of Türkiye Ministry of Agriculture and Forestry, Viticulture Research Institute, Manisa, Türkiye
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Tympakianakis S, Trantas E, Avramidou EV, Ververidis F. Vitis vinifera genotyping toolbox to highlight diversity and germplasm identification. FRONTIERS IN PLANT SCIENCE 2023; 14:1139647. [PMID: 37180393 PMCID: PMC10169827 DOI: 10.3389/fpls.2023.1139647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/27/2023] [Indexed: 05/16/2023]
Abstract
The contribution of vine cultivation to human welfare as well as the stimulation of basic social and cultural features of civilization has been great. The wide temporal and regional distribution created a wide array of genetic variants that have been used as propagating material to promote cultivation. Information on the origin and relationships among cultivars is of great interest from a phylogenetics and biotechnology perspective. Fingerprinting and exploration of the complicated genetic background of varieties may contribute to future breeding programs. In this review, we present the most frequently used molecular markers, which have been used on Vitis germplasm. We discuss the scientific progress that led to the new strategies being implemented utilizing state-of-the-art next generation sequencing technologies. Additionally, we attempted to delimit the discussion on the algorithms used in phylogenetic analyses and differentiation of grape varieties. Lastly, the contribution of epigenetics is highlighted to tackle future roadmaps for breeding and exploitation of Vitis germplasm. The latter will remain in the top of the edge for future breeding and cultivation and the molecular tools presented herein, will serve as a reference point in the challenging years to come.
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Affiliation(s)
- Stylianos Tympakianakis
- Laboratory of Biological and Biotechnological Applications, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Heraklion, Greece
| | - Emmanouil Trantas
- Laboratory of Biological and Biotechnological Applications, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Heraklion, Greece
- Institute of Agri-Food and Life Sciences, Research Center of the Hellenic Mediterranean University, Heraklion, Greece
| | - Evangelia V. Avramidou
- Institute of Mediterranean Forest Ecosystems, Hellenic Agricultural Organisation “DIMITRA“, Athens, Greece
| | - Filippos Ververidis
- Laboratory of Biological and Biotechnological Applications, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Heraklion, Greece
- Institute of Agri-Food and Life Sciences, Research Center of the Hellenic Mediterranean University, Heraklion, Greece
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Vervalle JA, Costantini L, Lorenzi S, Pindo M, Mora R, Bolognesi G, Marini M, Lashbrooke JG, Tobutt KR, Vivier MA, Roodt-Wilding R, Grando MS, Bellin D. A high-density integrated map for grapevine based on three mapping populations genotyped by the Vitis18K SNP chip. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2022; 135:4371-4390. [PMID: 36271055 PMCID: PMC9734222 DOI: 10.1007/s00122-022-04225-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
We present a high-density integrated map for grapevine, allowing refinement and improved understanding of the grapevine genome, while demonstrating the applicability of the Vitis18K SNP chip for linkage mapping. The improvement of grapevine through biotechnology requires identification of the molecular bases of target traits by studying marker-trait associations. The Vitis18K SNP chip provides a useful genotyping tool for genome-wide marker analysis. Most linkage maps are based on single mapping populations, but an integrated map can increase marker density and show order conservation. Here we present an integrated map based on three mapping populations. The parents consist of the well-known wine cultivars 'Cabernet Sauvignon', 'Corvina' and 'Rhine Riesling', the lesser-known wine variety 'Deckrot', and a table grape selection, G1-7720. Three high-density population maps with an average inter-locus gap ranging from 0.74 to 0.99 cM were developed. These maps show high correlations (0.9965-0.9971) with the reference assembly, containing only 93 markers with large order discrepancies compared to expected physical positions, of which a third is consistent across multiple populations. Moreover, the genetic data aid the further refinement of the grapevine genome assembly, by anchoring 104 yet unanchored scaffolds. From these population maps, an integrated map was constructed which includes 6697 molecular markers and reduces the inter-locus gap distance to 0.60 cM, resulting in the densest integrated map for grapevine thus far. A small number of discrepancies, mainly of short distance, involve 88 markers that remain conflictual across maps. The integrated map shows similar collinearity to the reference assembly (0.9974) as the single maps. This high-density map increases our understanding of the grapevine genome and provides a useful tool for its further characterization and the dissection of complex traits.
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Affiliation(s)
- Jessica A Vervalle
- Department of Genetics, Stellenbosch University, Stellenbosch, 7600, South Africa
- ARC Infruitec-Nietvoorbij, Stellenbosch, 7599, South Africa
| | - Laura Costantini
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Silvia Lorenzi
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Massimo Pindo
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Riccardo Mora
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Giada Bolognesi
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Martina Marini
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Justin G Lashbrooke
- South African Grape and Wine Research Institute, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Ken R Tobutt
- ARC Infruitec-Nietvoorbij, Stellenbosch, 7599, South Africa
| | - Melané A Vivier
- South African Grape and Wine Research Institute, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Rouvay Roodt-Wilding
- Department of Genetics, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Maria Stella Grando
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
- Center Agriculture Food and Environment (C3A), University of Trento, San Michele all'Adige, Italy
| | - Diana Bellin
- Department of Biotechnology, University of Verona, Verona, Italy.
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Ricciardi V, Marcianò D, Sargolzaei M, Marrone Fassolo E, Fracassetti D, Brilli M, Moser M, Vahid SJ, Tavakole E, Maddalena G, Passera A, Casati P, Pindo M, Cestaro A, Costa A, Bonza MC, Maghradze D, Tirelli A, Failla O, Bianco PA, Quaglino F, Toffolatti SL, De Lorenzis G. Dissecting the susceptibility/resistance mechanism of Vitis vinifera for the future control of downy mildew. BIO WEB OF CONFERENCES 2022. [DOI: 10.1051/bioconf/20224404002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The Eurasian grapevine (Vitis vinifera), a species cultivated worldwide for high-quality wine production, is extremely susceptible to the agent of downy mildew, Plasmopara viticola. Nevertheless, germplasm from Georgia (Southern Caucasus, the first grapevine domestication centre), characterized by a high genetic variability, showed resistance traits to P. viticola. The cultivar Mgaloblishvili exhibited the most promising phenotype in terms of resistance against P. viticola. Its defence response results in: i) low disease intensity; ii) low sporulation; iii) damaged mycelium; iv) production of antimicrobial compounds such as volatile organic compounds (VOCs), whose effectiveness on the pathogen was evaluated by leafdisc assays. At the transcriptomic level, its resistance mechanism is determined by the differential expression of both resistance and susceptible genes. The resistance genes are related to: i) pathogen recognition through PAMP, DAMP and effector receptors; ii) ethylene signalling pathway; iii) synthesis of antimicrobial compounds (VOCs) and fungal wall degrading enzymes; iv) development of structural barriers (cell wall reinforcement). The first putative susceptible gene was the transcription factor VviLBDIf7 gene, whose validation was carried out by dsRNA (double-stranded RNA) assay. In this work, these unique results on plant-pathogen interaction are reviewed with the aim of developing new strategies to control the disease.
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The genomes of 204 Vitis vinifera accessions reveal the origin of European wine grapes. Nat Commun 2021; 12:7240. [PMID: 34934047 PMCID: PMC8692429 DOI: 10.1038/s41467-021-27487-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 11/18/2021] [Indexed: 01/29/2023] Open
Abstract
In order to elucidate the still controversial processes that originated European wine grapes from its wild progenitor, here we analyse 204 genomes of Vitis vinifera and show that all analyses support a single domestication event that occurred in Western Asia and was followed by numerous and pervasive introgressions from European wild populations. This admixture generated the so-called international wine grapes that have diffused from Alpine countries worldwide. Across Europe, marked differences in genomic diversity are observed in local varieties that are traditionally cultivated in different wine producing countries, with Italy and France showing the largest diversity. Three genomic regions of reduced genetic diversity are observed, presumably as a consequence of artificial selection. In the lowest diversity region, two candidate genes that gained berry–specific expression in domesticated varieties may contribute to the change in berry size and morphology that makes the fruit attractive for human consumption and adapted for winemaking. Reports on the origin of European wine grapes are controversial. Here, the authors perform population genetics analyses on a large set of representative wine-making varieties and reveal a single domestication event at the origin of the entire germplasm followed by repeated introgression from wild populations.
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Augusto D, Ibáñez J, Pinto-Sintra AL, Falco V, Leal F, Martínez-Zapater JM, Oliveira AA, Castro I. Grapevine Diversity and Genetic Relationships in Northeast Portugal Old Vineyards. PLANTS 2021; 10:plants10122755. [PMID: 34961228 PMCID: PMC8705298 DOI: 10.3390/plants10122755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/08/2021] [Accepted: 12/08/2021] [Indexed: 11/16/2022]
Abstract
More than 100 grapevine varieties are registered as suitable for wine production in “Douro” and “Trás-os-Montes” Protected Designations of Origin regions; however, only a few are actually used for winemaking. The identification of varieties cultivated in past times can be an important step to take advantage of all the potential of these regions grape biodiversity. The conservation of the vanishing genetic resources boosts greater product diversification, and it can be considered strategic in the valorisation of these wine regions. Hence, one goal of the present study was to prospect and characterise, through molecular markers, 310 plants of 11 old vineyards that constitute a broad representation of the grape genetic patrimony of “Douro” and “Trás-os-Montes” wine regions; 280 samples, grouped into 52 distinct known varieties, were identified through comparison of their genetic profiles generated via 6 nuclear SSR and 43 informative SNP loci amplification; the remaining 30 samples, accounting for 13 different genotypes, did not match with any profile in the consulted databases and were considered as new genotypes. This study also aimed at evaluating the population structure among the 65 non-redundant genotypes identified, which were grouped into two ancestral genetic groups. The mean probability of identity values of 0.072 and 0.510 (for the 6 SSR and 226 SNP sets, respectively) were determined. Minor differences were observed between frequencies of chlorotypes A and D within the non-redundant genotypes studied. Twenty-seven pedigrees were confirmed and nine new trios were established. Ancestors of eight genotypes remain unknown.
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Affiliation(s)
- Diana Augusto
- Department of Genetics and Biotechnology, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal;
| | - Javier Ibáñez
- Institute of Grapevine and Wine Sciences (ICVV), Spanish National Research Council (CSIC), University of La Rioja and Government of La Rioja, 26007 Logroño, Spain; (J.I.); (J.M.M.-Z.)
| | - Ana Lúcia Pinto-Sintra
- Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal; (A.L.P.-S.); (F.L.); (A.A.O.)
| | - Virgílio Falco
- Chemistry Research Centre, Vila Real (CQ-VR), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal;
| | - Fernanda Leal
- Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal; (A.L.P.-S.); (F.L.); (A.A.O.)
| | - José Miguel Martínez-Zapater
- Institute of Grapevine and Wine Sciences (ICVV), Spanish National Research Council (CSIC), University of La Rioja and Government of La Rioja, 26007 Logroño, Spain; (J.I.); (J.M.M.-Z.)
| | - Ana Alexandra Oliveira
- Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal; (A.L.P.-S.); (F.L.); (A.A.O.)
| | - Isaura Castro
- Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal; (A.L.P.-S.); (F.L.); (A.A.O.)
- Correspondence:
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Margaryan K, Melyan G, Röckel F, Töpfer R, Maul E. Genetic Diversity of Armenian Grapevine ( Vitis vinifera L.) Germplasm: Molecular Characterization and Parentage Analysis. BIOLOGY 2021; 10:1279. [PMID: 34943194 PMCID: PMC8698583 DOI: 10.3390/biology10121279] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/27/2021] [Accepted: 12/03/2021] [Indexed: 11/30/2022]
Abstract
Armenia is an important country of origin of cultivated Vitis vinifera subsp. vinifera and wild Vitis vinifera subsp. sylvestris and has played a key role in the long history of grape cultivation in the Southern Caucasus. The existence of immense grapevine biodiversity in a small territory is strongly linked with unique relief and diverse climate conditions assembled with millennium-lasting cultural and historical context. In the present in-depth study using 25 nSSR markers, 492 samples collected in old vineyards, home gardens, and private collections were genotyped. For verification of cultivar identity, the symbiotic approach combining genotypic and phenotypic characterization for each genotype was carried out. The study provided 221 unique varieties, including 5 mutants, from which 66 were widely grown, neglected or minor autochthonous grapevine varieties, 49 turned out to be new bred cultivars created within the national breeding programs mainly during Soviet Era and 34 were non-Armenian varieties with different countries of origin. No references and corresponding genetic profiles existed for 67 genotypes. Parentage analysis was performed inferring 62 trios with 53 out of them having not been previously reported and 185 half-kinships. Instability of grapevine cultivars was detected, showing allelic variants, with three and in rare cases four alleles at one loci. Obtained results have great importance and revealed that Armenia conserved an extensive grape genetic diversity despite geographical isolation and low material exchange. This gene pool richness represents a huge reservoir of under-explored genetic diversity.
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Affiliation(s)
- Kristine Margaryan
- Research Group of Plant Genetics and Immunology, Institute of Molecular Biology of National Academy of Sciences RA, Yerevan 0014, Armenia
- Department of Genetics and Cytology, Yerevan State University, Yerevan 0025, Armenia
| | - Gagik Melyan
- Voskehat Educational and Research Center of Enology, Branch of Armenian National Agrarian University, Merdzavan 1139, Armavir Province, Armenia
| | - Franco Röckel
- Julius Kühn-Institute (JKI), Institute for Grapevine Breeding Geilweilerhof, 76833 Siebeldingen, Germany; (F.R.); (R.T.); (E.M.)
| | - Reinhard Töpfer
- Julius Kühn-Institute (JKI), Institute for Grapevine Breeding Geilweilerhof, 76833 Siebeldingen, Germany; (F.R.); (R.T.); (E.M.)
| | - Erika Maul
- Julius Kühn-Institute (JKI), Institute for Grapevine Breeding Geilweilerhof, 76833 Siebeldingen, Germany; (F.R.); (R.T.); (E.M.)
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Dinu DG, Ricciardi V, Demarco C, Zingarofalo G, De Lorenzis G, Buccolieri R, Cola G, Rustioni L. Climate Change Impacts on Plant Phenology: Grapevine ( Vitis vinifera) Bud Break in Wintertime in Southern Italy. Foods 2021; 10:foods10112769. [PMID: 34829050 PMCID: PMC8621361 DOI: 10.3390/foods10112769] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/02/2021] [Accepted: 11/08/2021] [Indexed: 11/22/2022] Open
Abstract
The effects of global warming on plants are not limited to the exacerbation of summer stresses; they could also induce dormancy dysfunctions. In January 2020, a bud break was observed in an old poly-varietal vineyard. Meteorological data elaboration of the 1951–2020 period confirmed the general climatic warming of the area and highlighted the particular high temperatures of the last winter. Phenological records appeared to be significantly correlated to wood hydration and starch reserve consumption, demonstrating a systemic response of the plant to the warm conditions. The eight cultivars, identified by single-nucleotide polymorphism (SNP) profiles and ampelographic description, grown in this vineyard showed different behaviors. Among them, the neglected Sprino, Baresana, Bianco Palmento, and Uva Gerusalemme, as well as the interspecific hybrid Seyve Villard 12.375, appeared to be the most interesting. Among the adaptation strategies to climate changes, the cultivar selection should be considered a priority, as it reduces the inputs required for the plant management over the entire life cycle of the vineyard. Hot Mediterranean areas, such as Salento, are a battlefront against the climate change impacts, and, thus, they represent a precious source of biodiversity for viticulture.
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Affiliation(s)
- Daniel Grigorie Dinu
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, S.P. 6 Lecce-Monteroni, 73100 Lecce, Italy; (D.G.D.); (C.D.); (G.Z.); (R.B.)
| | - Valentina Ricciardi
- Department of Agricultural and Environmental Sciences, Università degli Studi di Milano, Via Celoria, 20133 Milano, Italy; (V.R.); (G.D.L.); (G.C.)
| | - Cosimo Demarco
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, S.P. 6 Lecce-Monteroni, 73100 Lecce, Italy; (D.G.D.); (C.D.); (G.Z.); (R.B.)
| | - Gianroberto Zingarofalo
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, S.P. 6 Lecce-Monteroni, 73100 Lecce, Italy; (D.G.D.); (C.D.); (G.Z.); (R.B.)
| | - Gabriella De Lorenzis
- Department of Agricultural and Environmental Sciences, Università degli Studi di Milano, Via Celoria, 20133 Milano, Italy; (V.R.); (G.D.L.); (G.C.)
| | - Riccardo Buccolieri
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, S.P. 6 Lecce-Monteroni, 73100 Lecce, Italy; (D.G.D.); (C.D.); (G.Z.); (R.B.)
| | - Gabriele Cola
- Department of Agricultural and Environmental Sciences, Università degli Studi di Milano, Via Celoria, 20133 Milano, Italy; (V.R.); (G.D.L.); (G.C.)
| | - Laura Rustioni
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, S.P. 6 Lecce-Monteroni, 73100 Lecce, Italy; (D.G.D.); (C.D.); (G.Z.); (R.B.)
- Correspondence:
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Possamai T, Wiedemann-Merdinoglu S, Merdinoglu D, Migliaro D, De Mori G, Cipriani G, Velasco R, Testolin R. Construction of a high-density genetic map and detection of a major QTL of resistance to powdery mildew (Erysiphe necator Sch.) in Caucasian grapes (Vitis vinifera L.). BMC PLANT BIOLOGY 2021; 21:528. [PMID: 34763660 PMCID: PMC8582213 DOI: 10.1186/s12870-021-03174-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 08/09/2021] [Indexed: 05/30/2023]
Abstract
BACKGROUND Vitis vinifera L. is the most cultivated grapevine species worldwide. Erysiphe necator Sch., the causal agent of grape powdery mildew, is one of the main pathogens affecting viticulture. V. vinifera has little or no genetic resistances against E. necator and the grape industry is highly dependent on agrochemicals. Some Caucasian V. vinifera accessions have been reported to be resistant to E. necator and to have no genetic relationships to known sources of resistance to powdery mildew. The main purpose of this work was the study and mapping of the resistance to E. necator in the Caucasian grapes 'Shavtsitska' and 'Tskhvedianis tetra'. RESULTS The Caucasian varieties 'Shavtsitska' and 'Tskhvedianis tetra' showed a strong partial resistance to E. necator which segregated in two cross populations: the resistant genotypes delayed and limited the pathogen mycelium growth, sporulation intensity and number of conidia generated. A total of 184 seedlings of 'Shavtsitska' x 'Glera' population were genotyped through the Genotyping by Sequencing (GBS) technology and two high-density linkage maps were developed for the cross parents. The QTL analysis revealed a major resistance locus, explaining up to 80.15% of the phenotypic variance, on 'Shavtsitska' linkage group 13, which was associated with a reduced pathogen infection as well as an enhanced plant necrotic response. The genotyping of 105 Caucasian accessions with SSR markers flanking the QTL revealed that the resistant haplotype of 'Shavtsitska' was shared by 'Tskhvedianis tetra' and a total of 25 Caucasian grape varieties, suggesting a widespread presence of this resistance in the surveyed germplasm. The uncovered QTL was mapped in the region where the Ren1 locus of resistance to E. necator, identified in the V. vinifera 'Kishmish vatkana' and related grapes of Central Asia, is located. The genetic analysis conducted revealed that the Caucasian grapes in this study exhibit a resistant haplotype different from that of Central Asian grape accessions. CONCLUSIONS The QTL isolated in 'Shavtsitska' and present in the Caucasian V. vinifera varieties could be a new candidate gene of resistance to E. necator to use in breeding programmes. It co-localizes with the Ren1 locus but shows a different haplotype from that of grapevines of Central Asia. We therefore consider that the Caucasian resistance locus, named Ren1.2, contains a member of a cluster of R-genes, of which the region is rich, and to be linked with, or possibly allelic, to Ren1.
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Affiliation(s)
- Tyrone Possamai
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100, Udine, Italy.
- CREA - Research Centre for Viticulture and Enology, viale XXVIII Aprile 26, 31015, Conegliano, TV, Italy.
| | | | - Didier Merdinoglu
- INRAE, Université de Strasbourg, SVQV UMR-A 1131, 28 rue de Herrlisheim, 68000, Colmar, France
| | - Daniele Migliaro
- CREA - Research Centre for Viticulture and Enology, viale XXVIII Aprile 26, 31015, Conegliano, TV, Italy
| | - Gloria De Mori
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100, Udine, Italy
| | - Guido Cipriani
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100, Udine, Italy
| | - Riccardo Velasco
- CREA - Research Centre for Viticulture and Enology, viale XXVIII Aprile 26, 31015, Conegliano, TV, Italy
| | - Raffaele Testolin
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100, Udine, Italy
- Institute of Applied Genomics, Science & Technology Park "Luigi Danieli", via Jacopo Linussio 51, 33100, Udine, Italy
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11
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Liao G, Zhong M, Jiang Z, Tao J, Jia D, Qu X, Huang C, Liu Q, Xu X. Genome-Wide Association Studies Provide Insights into the Genetic Determination of Flower and Leaf Traits of Actinidia eriantha. FRONTIERS IN PLANT SCIENCE 2021; 12:730890. [PMID: 34490026 PMCID: PMC8417775 DOI: 10.3389/fpls.2021.730890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
Kiwifruit (Actinidia eriantha) is a dioecious vine, and the pollen of its male cultivars has a direct effect on the quality of its fruits. In this study, to facilitate molecular breeding and gene identification, we performed genome-wide association studies (GWAS) on 11 traits of flower and leaf. A total of 946,337 highly consistent SNP markers were obtained in the whole genome. Phylogenetic tree analysis and population structure analysis showed that the 143 germplasms can be divided into two groups. The linkage disequilibrium analysis showed that A. eriantha have a relatively fast attenuation rate, and that the average attenuation distance of LD was 0.1-0.3 Kb. The MLM (QK) model was determined as best for correlation analysis, and eight and three SNPs associated with flower- and leaf-related traits were identified, respectively, at 0.01 significance level. However, SNP markers associated with stamen number per flower, pollen viability, total chlorophyll content, and total flavonoid content were not identified at the 0.01 significant level, although it is worth noting that one, one, five, and two SNPs were identified to be associated with these traits at the 0.05 significant level. This study provides insights into the complex flower- and leaf-related biology, and identifies genes controlling important traits in A. eriantha through GWAS, which extends the genetic resources and basis for facilitating molecular breeding in kiwifruits.
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12
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Back to the Origins: Background and Perspectives of Grapevine Domestication. Int J Mol Sci 2021; 22:ijms22094518. [PMID: 33926017 PMCID: PMC8123694 DOI: 10.3390/ijms22094518] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 01/01/2023] Open
Abstract
Domestication is a process of selection driven by humans, transforming wild progenitors into domesticated crops. The grapevine (Vitis vinifera L.), besides being one of the most extensively cultivated fruit trees in the world, is also a fascinating subject for evolutionary studies. The domestication process started in the Near East and the varieties obtained were successively spread and cultivated in different areas. Whether the domestication occurred only once, or whether successive domestication events occurred independently, is a highly debated mystery. Moreover, introgression events, breeding and intense trade in the Mediterranean basin have followed, in the last thousands of years, obfuscating the genetic relationships. Although a succession of studies has been carried out to explore grapevine origin and different evolution models are proposed, an overview of the topic remains pending. We review here the findings obtained in the main phylogenetic and genomic studies proposed in the last two decades, to clarify the fundamental questions regarding where, when and how many times grapevine domestication took place. Finally, we argue that the realization of the pan-genome of grapes could be a useful resource to discover and track the changes which have occurred in the genomes and to improve our understanding about the domestication.
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13
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Sharing the Agrarian Knowledge with Archaeology: First Evidence of the Dimorphism of Vitis Pollen from the Middle Bronze Age of N Italy (Terramara Santa Rosa di Poviglio). SUSTAINABILITY 2021. [DOI: 10.3390/su13042287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The recovery of inaperturate pollen from functionally female flowers in archaeological layers opens the question of a possible pollen-based discrimination between wild and domesticated Vitis vinifera in prehistoric times. Pollen analysis applied to archaeology has not routinely considered the existence of pollen dimorphism in Vitis, a well-known trait in the field of agrarian studies. Therefore, the inaperturate shape of grapevine pollen is ignored by studies on the archaeobotanical history of viticulture. In this paper we investigate pollen morphology of the domesticated and wild subspecies of V. vinifera, and report the first evidence of inaperturate Vitis pollen from an archaeological site. We studied exemplar cases of plants with hermaphroditic flowers, belonging to the subspecies vinifera with fully developed male and female organs, cases of dioecious plants with male or female flowers, belonging to the wild subspecies sylvestris and cases of V. vinifera subsp. vinifera with morphologically hermaphroditic but functionally female flowers. The pollen produced by hermaphroditic and male flowers is usually trizonocolporate; the pollen produced by female flowers is inaperturate. This paper reports on the inaperturate pollen of Vitis found in an archeological site of the Po Plain, Northern Italy. The site dated to the Bronze Age, which is known to have been a critical age for the use of this plant with a transition from wild to domesticated Vitis in central Mediterranean. Can the inaperturate Vitis pollen be a marker of wild Vitis vinifera in prehistoric times? Palynology suggests a possible new investigation strategy on the ancient history of the wild and cultivated grapevine. The pollen dimorphism also implies a different production and dispersal of pollen of the wild and the domesticated subspecies. Grapevine plants are palynologically different from the other Mediterranean “cultural trees”. In fact, Olea, Juglans and Castanea, which are included in the OJC index, have the same pollen morphology and the same pollen dispersal, in wild and domesticated plants. In contrast, the signal of Vitis pollen in past records may be different depending on the hermaphroditic or dioecious subspecies.
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14
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Trenti M, Lorenzi S, Bianchedi PL, Grossi D, Failla O, Grando MS, Emanuelli F. Candidate genes and SNPs associated with stomatal conductance under drought stress in Vitis. BMC PLANT BIOLOGY 2021; 21:7. [PMID: 33407127 PMCID: PMC7789618 DOI: 10.1186/s12870-020-02739-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 11/16/2020] [Indexed: 05/03/2023]
Abstract
BACKGROUND Understanding the complexity of the vine plant's response to water deficit represents a major challenge for sustainable winegrowing. Regulation of water use requires a coordinated action between scions and rootstocks on which cultivars are generally grafted to cope with phylloxera infestations. In this regard, a genome-wide association study (GWAS) approach was applied on an 'ad hoc' association mapping panel including different Vitis species, in order to dissect the genetic basis of transpiration-related traits and to identify genomic regions of grape rootstocks associated with drought tolerance mechanisms. The panel was genotyped with the GrapeReSeq Illumina 20 K SNP array and SSR markers, and infrared thermography was applied to estimate stomatal conductance values during progressive water deficit. RESULTS In the association panel the level of genetic diversity was substantially lower for SNPs loci (0.32) than for SSR (0.87). GWAS detected 24 significant marker-trait associations along the various stages of drought-stress experiment and 13 candidate genes with a feasible role in drought response were identified. Gene expression analysis proved that three of these genes (VIT_13s0019g03040, VIT_17s0000g08960, VIT_18s0001g15390) were actually induced by drought stress. Genetic variation of VIT_17s0000g08960 coding for a raffinose synthase was further investigated by resequencing the gene of 85 individuals since a SNP located in the region (chr17_10,497,222_C_T) was significantly associated with stomatal conductance. CONCLUSIONS Our results represent a step forward towards the dissection of genetic basis that modulate the response to water deprivation in grape rootstocks. The knowledge derived from this study may be useful to exploit genotypic and phenotypic diversity in practical applications and to assist further investigations.
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Affiliation(s)
- Massimiliano Trenti
- Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38010 San Michele all’Adige, Italy
| | - Silvia Lorenzi
- Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38010 San Michele all’Adige, Italy
| | - Pier Luigi Bianchedi
- Technology Transfer Centre, Fondazione Edmund Mach, via E. Mach 1, 38010 San Michele all’Adige, Italy
| | - Daniele Grossi
- Department of Agricultural and Environmental Sciences, University of Milano, via Celoria 2, 20133 Milan, Italy
| | - Osvaldo Failla
- Department of Agricultural and Environmental Sciences, University of Milano, via Celoria 2, 20133 Milan, Italy
| | - Maria Stella Grando
- Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38010 San Michele all’Adige, Italy
- Center Agriculture Food Environment (C3A), University of Trento, via E. Mach 1, 38010 San Michele all’Adige, Italy
| | - Francesco Emanuelli
- Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38010 San Michele all’Adige, Italy
- Department of Agricultural and Environmental Sciences, University of Milano, via Celoria 2, 20133 Milan, Italy
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15
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Sargolzaei M, Rustioni L, Cola G, Ricciardi V, Bianco PA, Maghradze D, Failla O, Quaglino F, Toffolatti SL, De Lorenzis G. Georgian Grapevine Cultivars: Ancient Biodiversity for Future Viticulture. FRONTIERS IN PLANT SCIENCE 2021; 12:630122. [PMID: 33613611 PMCID: PMC7892605 DOI: 10.3389/fpls.2021.630122] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/13/2021] [Indexed: 05/14/2023]
Abstract
Grapevine (Vitis vinifera) is one of the most widely cultivated plant species of agricultural interest, and is extensively appreciated for its fruits and the wines made from its fruits. Considering the high socio-economic impact of the wine sector all over the world, in recent years, there has been an increase in work aiming to investigate the biodiversity of grapevine germplasm available for breeding programs. Various studies have shed light on the genetic diversity characterizing the germplasm from the cradle of V. vinifera domestication in Georgia (South Caucasus). Georgian germplasm is placed in a distinct cluster from the European one and possesses a rich diversity for many different traits, including eno-carpological and phenological traits; resistance to pathogens, such as oomycetes and phytoplasmas; resistance to abiotic stresses, such as sunburn. The aim of this review is to assess the potential of Georgian cultivars as a source of useful traits for breeding programs. The unique genetic and phenotypic aspects of Georgian germplasm were unraveled, to better understand the diversity and quality of the genetic resources available to viticulturists, as valuable resources for the coming climate change scenario.
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Affiliation(s)
- Maryam Sargolzaei
- Dipartimento di Scienze Agrarie e Ambientali, Università degli Studi di Milano, Milan, Italy
| | - Laura Rustioni
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento – Centro Ecotekne, Lecce, Italy
| | - Gabriele Cola
- Dipartimento di Scienze Agrarie e Ambientali, Università degli Studi di Milano, Milan, Italy
| | - Valentina Ricciardi
- Dipartimento di Scienze Agrarie e Ambientali, Università degli Studi di Milano, Milan, Italy
| | - Piero A. Bianco
- Dipartimento di Scienze Agrarie e Ambientali, Università degli Studi di Milano, Milan, Italy
| | - David Maghradze
- Faculty of Viticulture and Winemaking, Caucasus International University, Tbilisi, Georgia
- National Wine Agency of Georgia, Tbilisi, Georgia
| | - Osvaldo Failla
- Dipartimento di Scienze Agrarie e Ambientali, Università degli Studi di Milano, Milan, Italy
| | - Fabio Quaglino
- Dipartimento di Scienze Agrarie e Ambientali, Università degli Studi di Milano, Milan, Italy
| | - Silvia L. Toffolatti
- Dipartimento di Scienze Agrarie e Ambientali, Università degli Studi di Milano, Milan, Italy
- *Correspondence: Silvia L. Toffolatti,
| | - Gabriella De Lorenzis
- Dipartimento di Scienze Agrarie e Ambientali, Università degli Studi di Milano, Milan, Italy
- Gabriella De Lorenzis,
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16
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Mercati F, De Lorenzis G, Mauceri A, Zerbo M, Brancadoro L, D'Onofrio C, Morcia C, Barbagallo MG, Bignami C, Gardiman M, de Palma L, Ruffa P, Novello V, Crespan M, Sunseri F. Integrated Bayesian Approaches Shed Light on the Dissemination Routes of the Eurasian Grapevine Germplasm. FRONTIERS IN PLANT SCIENCE 2021; 12:692661. [PMID: 34434204 PMCID: PMC8381769 DOI: 10.3389/fpls.2021.692661] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/07/2021] [Indexed: 05/12/2023]
Abstract
The domestication and spreading of grapevine as well as the gene flow history had been described in many studies. We used a high-quality 7k SNP dataset of 1,038 Eurasian grape varieties with unique profiles to assess the population genetic diversity, structure, and relatedness, and to infer the most likely migration events. Comparisons of putative scenarios of gene flow throughout Europe from Caucasus helped to fit the more reliable migration routes around the Mediterranean Basin. Approximate Bayesian computation (ABC) approach made possible to provide a response to several questions so far remaining unsolved. Firstly, the assessment of genetic diversity and population structure within a well-covered dataset of ancient Italian varieties suggested the different histories between the Northern and Southern Italian grapevines. Moreover, Italian genotypes were shown to be distinguishable from all the other Eurasian populations for the first time. The entire Eurasian panel confirmed the east-to-west gene flow, highlighting the Greek role as a "bridge" between the Western and Eastern Eurasia. Portuguese germplasm showed a greater proximity to French varieties than the Spanish ones, thus being the main route for gene flow from Iberian Peninsula to Central Europe. Our findings reconciled genetic and archaeological data for one of the most cultivated and fascinating crops in the world.
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Affiliation(s)
- Francesco Mercati
- Istituto Bioscienze e Biorisorse, Consiglio Nazionale delle Ricerche, Palermo, Italy
- *Correspondence: Francesco Mercati
| | - Gabriella De Lorenzis
- Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milan, Milan, Italy
| | - Antonio Mauceri
- Dipartimento Agraria, Università Mediterranea degli Studi di Reggio Calabria, Reggio Calabria, Italy
| | - Marcello Zerbo
- Istituto Bioscienze e Biorisorse, Consiglio Nazionale delle Ricerche, Palermo, Italy
| | - Lucio Brancadoro
- Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milan, Milan, Italy
| | - Claudio D'Onofrio
- Dipartimento di Scienze Agrarie, Alimentari e Agro-ambientali, Università degli Studi di Pisa, Pisa, Italy
| | - Caterina Morcia
- CREA - Centro di Ricerca per la Genomica e la Bioinformatica, Fiorenzuola d'Arda, Italy
| | | | - Cristina Bignami
- Dipartimento di Scienze della Vita, Centro Biogest-Siteia, Università degli Studi di Modena e Reggio Emilia, Reggio Emilia, Italy
| | - Massimo Gardiman
- CREA - Centro di Ricerca per la Viticoltura ed Enologia, Conegliano, Italy
| | - Laura de Palma
- Dipartimento di Scienze Agrarie, Alimenti, Risorse Naturali e Ingegneria, Università degli Studi di Foggia, Foggia, Italy
| | - Paola Ruffa
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, Torino, Italy
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, Università degli Studi di Torino, Grugliasco, Italy
| | - Vittorino Novello
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, Università degli Studi di Torino, Grugliasco, Italy
| | - Manna Crespan
- CREA - Centro di Ricerca per la Viticoltura ed Enologia, Conegliano, Italy
- Manna Crespan
| | - Francesco Sunseri
- Dipartimento Agraria, Università Mediterranea degli Studi di Reggio Calabria, Reggio Calabria, Italy
- Francesco Sunseri
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17
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Genetic Diversity, Population Structure, and Parentage Analysis of Croatian Grapevine Germplasm. Genes (Basel) 2020; 11:genes11070737. [PMID: 32630730 PMCID: PMC7397172 DOI: 10.3390/genes11070737] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/25/2020] [Accepted: 06/25/2020] [Indexed: 12/29/2022] Open
Abstract
Croatian viticulture was most extensive at the beginning of the 20th century, when about 400 varieties were in use. Autochthonous varieties are the result of spontaneous hybridization from the pre-phylloxera era and are still cultivated today on about 35 % of vineyard area, while some exist only in repositories. We present what is the most comprehensive genetic analysis of all major Croatian national repositories, with a large number of microsatellite, or simple sequence repeat (SSR) markers, and it is also the first study to apply single nucleotide polymorphism (SNP) markers. After 212 accessions were fingerprinted, 95 were classified as unique to Croatian germplasm. Genetic diversity of Croatian germplasm is rather high considering its size. SNP markers proved useful for fingerprinting but less informative and practical than SSRs. Analysis of the genetic structure showed that Croatian germplasm is predominantly part of the Balkan grape gene pool. A high number of admixed varieties and synonyms is a consequence of complex pedigrees and migrations. Parentage analysis confirmed 24 full parentages, as well as 113 half-kinships. Unexpectedly, several key genitors could not be detected within the present Croatian germplasm. The low number of reconstructed parentages (19%) points to severe genetic erosion and stresses the importance of germplasm repositories.
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18
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Genetic Diversity and Population Structure in a Vitis spp. Core Collection Investigated by SNP Markers. DIVERSITY 2020. [DOI: 10.3390/d12030103] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Single nucleotide polymorphism (SNP) genotyping arrays are powerful tools to measure the level of genetic polymorphism within a population. The coming of next-generation sequencing technologies led to identifying thousands and millions of SNP loci useful in assessing the genetic diversity. The Vitis genotyping array, containing 18k SNP loci, has been developed and used to detect genetic diversity of Vitis vinifera germplasm. So far, this array was not validated on non-vinifera genotypes used as grapevine rootstocks. In this work, a core collection of 70 grapevine rootstocks, composed of individuals belonging to Vitis species not commonly used in the breeding programs, was genotyped using the 18k SNP genotyping array. SNP results were compared to the established SSR (Simple Sequence Repeat) markers in terms of heterozygosity and genetic structure of the core collection. Genotyping array has proved to be a valuable tool for genotyping of grapevine rootstocks, with more than 90% of SNPs successfully amplified. Structure analysis detected a high degree of admixed genotypes, supported by the complex genetic background of non-vinifera germplasm. Moreover, SNPs clearly differentiated non-vinifera and vinifera germplasm. These results represent a first step in studying the genetic diversity of non-conventional breeding material that will be used to select rootstocks with high tolerance to limiting environmental conditions.
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19
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Sargolzaei M, Maddalena G, Bitsadze N, Maghradze D, Bianco PA, Failla O, Toffolatti SL, De Lorenzis G. Rpv29, Rpv30 and Rpv31: Three Novel Genomic Loci Associated With Resistance to Plasmopara viticola in Vitis vinifera. FRONTIERS IN PLANT SCIENCE 2020; 11:562432. [PMID: 33163011 PMCID: PMC7583455 DOI: 10.3389/fpls.2020.562432] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 09/17/2020] [Indexed: 05/21/2023]
Abstract
Plasmopara viticola (Berk. et Curt.) Berl. and de Toni, the agent of downy mildew, is one of the most important pathogens of European grapevine (Vitis vinifera L.). Extensive evaluation of cultivated grapevine germplasm has highlighted the existence of resistant phenotypes in the Georgian (Southern Caucasus) germplasm. Resistance is shown as a reduction in disease severity. Unraveling the genetic architecture of grapevine response to P. viticola infection is crucial to develop resistant varieties and reduce the impact of disease management. The aim of this work was to apply a genome-wide association (GWA) approach to a panel of Georgian-derived accessions phenotyped for P. viticola susceptibility and genotyped with Vitis18kSNP chip array. GWA identified three highly significant novel loci on chromosomes 14 (Rpv29), 3 (Rpv30) and 16 (Rpv31) associated with a low level of pathogen sporulation. Rpv29, Rpv30, and Rpv31 loci appeared to be associated with plant defense genes against biotic stresses, such as genes involved in pathogen recognition and signal transduction. This study provides the first evidence of resistant loci against P. viticola in V. vinifera germplasm, and identifies potential target genes for breeding P. viticola resistant grapevine cultivars.
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Affiliation(s)
- Maryam Sargolzaei
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
| | - Giuliana Maddalena
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
| | - Nana Bitsadze
- Department of Agriculture and Life Sciences, Agricultural University of Georgia, Tbilisi, Georgia
| | - David Maghradze
- Faculty of Viticulture and Winemaking, Caucasus International University, Tbilisi, Georgia
- National Wine Agency of Georgia, Tbilisi, Georgia
| | - Piero Attilio Bianco
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
| | - Osvaldo Failla
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
| | - Silvia Laura Toffolatti
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
- *Correspondence: Gabriella De Lorenzis,
| | - Gabriella De Lorenzis
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
- Silvia Laura Toffolatti,
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20
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D’Onofrio C, Tumino G, Gardiman M, Crespan M, Bignami C, de Palma L, Barbagallo MG, Muganu M, Morcia C, Novello V, Schneider A, Terzi V. Parentage Atlas of Italian Grapevine Varieties as Inferred From SNP Genotyping. FRONTIERS IN PLANT SCIENCE 2020; 11:605934. [PMID: 33584749 PMCID: PMC7874015 DOI: 10.3389/fpls.2020.605934] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 12/22/2020] [Indexed: 05/11/2023]
Abstract
The Italian grape germplasm is characterized by a high level of richness in terms of varieties number, with nearly 600 wine grape varieties listed in the Italian National Register of Grapevine Varieties and with a plethora of autochthonous grapes. In the present study an extended SNP genotyping has been carried out on Italian germplasm of cultivated Vitis vinifera subsp. sativa and Vitis hybrids. Several hundred Italian varieties maintained in the repositories of scientific Institutions and about one thousand additional varieties derived from previous studies on European, Southern Italy, Magna Graecia and Georgian germplasm were considered. The large genotyping data obtained were used to check the presence of homonyms and synonyms, determine parental relationships, and identify the main ancestors of traditional Italian cultivars and closely-related accessions. The parentage among a set of 1,232 unique varieties has been assessed. A total of 92 new parent-offspring (PO) pairs and 14 new PO trios were identified. The resulted parentage network suggested that the traditional Italian grapevine germplasm originates largely from a few central varieties geographically distributed into several areas of genetic influence: "Strinto porcino" and its offspring "Sangiovese", "Mantonico bianco" and "Aglianico" mainly as founder varieties of South-Western Italy (IT-SW); Italian Adriatic Coast (IT-AC); and Central Italy with most varieties being offsprings of "Visparola", "Garganega" and "Bombino bianco"; "Termarina (Sciaccarello)" "Orsolina" and "Uva Tosca" as the main varieties of North-Western Italy (IT-NW) and Central Italy. The pedigree reconstruction by full-sib and second-degree relationships highlighted the key role of some cultivars, and, in particular, the centrality of "Visparola" in the origin of Italian germplasm appeared clear. An hypothetical migration of this variety within the Italian Peninsula from South to North along the eastern side, as well as of "Sangiovese" from South to Central Italy along the Western side might be supposed. Moreover, it was also highlighted that, among the main founders of muscat varieties, "Moscato bianco" and "Zibibbo (Muscat of Alexandria)" have spread over the whole Italy, with a high contribution by the former to germplasm of the North-Western of the peninsula.
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Affiliation(s)
- Claudio D’Onofrio
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
- *Correspondence: Claudio D’Onofrio,
| | - Giorgio Tumino
- CREA Research Centre for Genomics and Bioinformatics, Fiorenzuola d’Arda, Italy
| | - Massimo Gardiman
- CREA Research Centre for Viticulture and Enology, Conegliano, Italy
| | - Manna Crespan
- CREA Research Centre for Viticulture and Enology, Conegliano, Italy
| | - Cristina Bignami
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Laura de Palma
- Department of Sciences of Agriculture, Food, Natural Resources and Engineering, University of Foggia, Foggia, Italy
| | | | - Massimo Muganu
- Department of Agriculture and Forest Sciences, University of Tuscia, Viterbo, Italy
| | - Caterina Morcia
- CREA Research Centre for Genomics and Bioinformatics, Fiorenzuola d’Arda, Italy
| | - Vittorino Novello
- Department of Agriculture, Forestry and Food Sciences, University of Turin, Turin, Italy
| | - Anna Schneider
- Research Council of Italy, Institute for Sustainable Plant Protection, Turin, Italy
| | - Valeria Terzi
- CREA Research Centre for Genomics and Bioinformatics, Fiorenzuola d’Arda, Italy
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21
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Boccacci P, Chitarra W, Schneider A, Rolle L, Gambino G. Single-nucleotide polymorphism (SNP) genotyping assays for the varietal authentication of 'Nebbiolo' musts and wines. Food Chem 2019; 312:126100. [PMID: 31901826 DOI: 10.1016/j.foodchem.2019.126100] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 12/30/2022]
Abstract
'Nebbiolo' (Vitis vinifera L.) is renowned for its use in producing monovarietal high-quality red wines, such Barolo and Barbaresco. The fight against fraud to safeguard high-quality productions requires an effective varietal identification system applicable in musts and wines. 'Nebbiolo'-specific single-nucleotide polymorphisms (SNPs) were identified starting from available databases and 260 genotypes analysed by Vitis18kSNP array. Two SNPs were sufficient to identify 'Nebbiolo' from 1157 genotypes. The SNP TaqMan® genotyping assays developed in this work successfully identified 'Nebbiolo' in all musts and wines collected at different experimental wine-making steps. The high sensitivity of the assays allowed identification of must mixtures at 1% and wine mixtures at 10-20% with non-'Nebbiolo' genotypes. In commercial wines, the amplification efficiency was limited by the low amount of grapevine DNA and the presence of PCR inhibitors. The TaqMan® genotyping assay is a rapid, highly sensitive and specific methodology with remarkable potential for varietal identification in wines.
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Affiliation(s)
- Paolo Boccacci
- Institute for Sustainable Plant Protection, National Research Council (IPSP-CNR), Torino. Strada delle Cacce 73, 10135 Torino, Italy
| | - Walter Chitarra
- Institute for Sustainable Plant Protection, National Research Council (IPSP-CNR), Torino. Strada delle Cacce 73, 10135 Torino, Italy; Council for Agricultural Research and Economics, Viticultural and Enology Research Centre (CREA-VE), Via XXVIII Aprile 26, 31015 Conegliano (Treviso), Italy
| | - Anna Schneider
- Institute for Sustainable Plant Protection, National Research Council (IPSP-CNR), Torino. Strada delle Cacce 73, 10135 Torino, Italy
| | - Luca Rolle
- Department of Agricultural, Forest and Food Sciences, University of Torino, Largo Braccini 2, 10095 Grugliasco, TO, Italy
| | - Giorgio Gambino
- Institute for Sustainable Plant Protection, National Research Council (IPSP-CNR), Torino. Strada delle Cacce 73, 10135 Torino, Italy.
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22
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Marrano A, Martínez‐García PJ, Bianco L, Sideli GM, Di Pierro EA, Leslie CA, Stevens KA, Crepeau MW, Troggio M, Langley CH, Neale DB. A new genomic tool for walnut (Juglans regia L.): development and validation of the high-density Axiom™ J. regia 700K SNP genotyping array. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:1027-1036. [PMID: 30515952 PMCID: PMC6523593 DOI: 10.1111/pbi.13034] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 10/22/2018] [Accepted: 10/28/2018] [Indexed: 05/02/2023]
Abstract
Over the last 20 years, global production of Persian walnut (Juglans regia L.) has grown enormously, likely reflecting increased consumption due to its numerous benefits to human health. However, advances in genome-wide association (GWA) studies and genomic selection (GS) for agronomically important traits in walnut remain limited due to the lack of powerful genomic tools. Here, we present the development and validation of a high-density 700K single nucleotide polymorphism (SNP) array in Persian walnut. Over 609K high-quality SNPs have been thoroughly selected from a set of 9.6 m genome-wide variants, previously identified from the high-depth re-sequencing of 27 founders of the Walnut Improvement Program (WIP) of University of California, Davis. To validate the effectiveness of the array, we genotyped a collection of 1284 walnut trees, including 1167 progeny of 48 WIP families and 26 walnut cultivars. More than half of the SNPs (55.7%) fell in the highest quality class of 'Poly High Resolution' (PHR) polymorphisms, which were used to assess the WIP pedigree integrity. We identified 151 new parent-offspring relationships, all confirmed with the Mendelian inheritance test. In addition, we explored the genetic variability among cultivars of different origin, revealing how the varieties from Europe and California were differentiated from Asian accessions. Both the reconstruction of the WIP pedigree and population structure analysis confirmed the effectiveness of the Applied Biosystems™ Axiom™ J. regia 700K SNP array, which initiates a novel genomic and advanced phase in walnut genetics and breeding.
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Affiliation(s)
| | | | - Luca Bianco
- Research and Innovation CentreFondazione Edmund MachSan Michele all'AdigeTNItaly
| | - Gina M. Sideli
- Department of Plant SciencesUniversity of CaliforniaDavisCAUSA
| | - Erica A. Di Pierro
- Research and Innovation CentreFondazione Edmund MachSan Michele all'AdigeTNItaly
| | | | | | - Marc W. Crepeau
- Department of Evolution and EcologyUniversity of CaliforniaDavisCAUSA
| | - Michela Troggio
- Research and Innovation CentreFondazione Edmund MachSan Michele all'AdigeTNItaly
| | | | - David B. Neale
- Department of Plant SciencesUniversity of CaliforniaDavisCAUSA
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23
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Maghradze D, Aslanishvili A, Mdinaradze I, Tkemaladze D, Mekhuzla L, Lordkipanidze D, Jalabadze M, Kvavadze E, Rusishvili N, McGovern P, This P, Bacilieri R, Failla O, Cola G, Mariani L, Toffolatti S, Lorenzis GD, Bianco P, Quaglino F, Wales N, Gilbert M, Bouby L, Kazeli T, Ujmajuridze L, Mamasakhlisashili L, Batiuk S, Graham A, Boaretto E, Cheishvili A, Davitashvili AL. Progress for research of grape and wine culture in Georgia, the South Caucasus. BIO WEB OF CONFERENCES 2019. [DOI: 10.1051/bioconf/20191203003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
This communication will provide the latest information about the progress of the “Research Project for the Study of Georgian Grapes and Wine Culture”, managed by the National Wine Agency of Georgia since 2014. Local and foreign institutions continue to work together with the aim of stimulating multidisciplinary scientific research activity on Georgian viticulture and viniculture and to reconstruct their development from Neolithic civilizations to the present. The project is multidisciplinary in nature, merging contributions from archaeology, history, ethnography, molecular genetics, biomolecular archaeology, palaeobotany, ampelography, enology, climatology and other scientific fields.
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Genetic analysis of the grapevine genotypes of the Russian Vitis ampelographic collection using iPBS markers. Genetica 2019; 147:91-101. [PMID: 30783944 DOI: 10.1007/s10709-019-00055-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/12/2019] [Indexed: 12/11/2022]
Abstract
Cultivated grapevine (Vitis vinifera L. ssp. sativa D.C.) is one of the oldest agricultural crops, each variety comprising an array of clones obtained by vegetative propagation from a selected vine grown from a single seedling. Most clones within a variety are identical, but some show a different form of accession, giving rise to new divergent phenotypes. Understanding the associations among the genotypes within a variety is crucial to efficient management and effective grapevine improvement. Inter-primer binding-site (iPBS) markers may aid in determining the new clones inside closely related genotypes. Following this idea, iPBS markers were used to assess the genetic variation of 33 grapevine genotypes collected from Russia. We used molecular markers to identify the differences among and within five grapevine clonal populations and analysed the variation, using clustering and statistical approaches. Four of a total of 30 PBS primers were selected, based on amplification efficiency. Polymerase chain reaction (PCR) with PBS primers resulted in a total of 1412 bands ranging from 300 to 6000 bp, with a polymorphism ratio of 44%, ranging from 58 to 75 bands per group. In total, were identified seven private bands in 33 genotypes. Results of molecular variance analysis showed that 40% of the total variation was observed within groups and only 60% between groups. Cluster analysis clearly showed that grapevine genotypes are highly divergent and possess abundant genetic diversities. The iPBS PCR-based genome fingerprinting technology used in this study effectively differentiated genotypes into five grapevine groups and indicated that iPBS markers are useful tools for clonal selection. The number of differences between clones was sufficient to identify them as separate clones of studied varieties containing unique mutations. Our previous phenotypic and phenological studies have confirmed that these genotypes differ from those of maternal plants. This work emphasized the need for a better understanding of the genotypic differences among closely related varieties of grapevine and has implications for the management of its selection processes.
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De Lorenzis G, Mercati F, Bergamini C, Cardone MF, Lupini A, Mauceri A, Caputo AR, Abbate L, Barbagallo MG, Antonacci D, Sunseri F, Brancadoro L. SNP genotyping elucidates the genetic diversity of Magna Graecia grapevine germplasm and its historical origin and dissemination. BMC PLANT BIOLOGY 2019; 19:7. [PMID: 30612542 PMCID: PMC6322315 DOI: 10.1186/s12870-018-1576-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 11/27/2018] [Indexed: 05/20/2023]
Abstract
BACKGROUND Magna Graecia is the ancient name for the modern geopolitical region of South Italy extensively populated by Greek colonizers, shown by archeological and historical evidence to be the oldest wine growing region of Italy, crucial for the spread of specialized viticulture around Mediterranean shores. Here, the genetic diversity of Magna Graecia grape germplasm was assessed and its role in grapevine propagation around the Mediterranean basin was underlined. RESULTS A large collection of grapevines from Magna Graecia was compared with germplasm from Georgia to the Iberian Peninsula using the 18 K SNP array. A high level of genetic diversity of the analyzed germplasm was determined; clustering, structure analysis and DAPC (Discriminant Analysis of Principal Components) highlighted the genetic relationships among genotypes from South Italy and the Eastern Mediterranean (Greece). Gene flow from east (Georgia) to west (Iberian Peninsula) was identified throughout the large number of detected admixed samples. Pedigree analysis showed a complex and well-structured network of first degree relationships, where the cultivars from Magna Graecia were mainly involved. CONCLUSIONS This study provided evidence that Magna Graecia germplasm was shaped by historical events that occurred in the area due to the robust link between South Italian and Greek genotypes, as well as, by the availability of different thermal resources for cultivars growing in such different winegrowing areas. The uniqueness of this ampelographic platform was mainly an outcome of complex natural or human-driven crosses involving elite cultivars.
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Affiliation(s)
| | - Francesco Mercati
- Istituto di Bioscienze e Biorisorse CNR, Corso Calatafimi 414, 90120 Palermo, Italy
| | - Carlo Bergamini
- Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria, Centro di ricerca Viticoltura ed Enologia, CREA-VE, via Casamassima 148, 70010 Turi, Bari Italy
| | - Maria Francesca Cardone
- Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria, Centro di ricerca Viticoltura ed Enologia, CREA-VE, via Casamassima 148, 70010 Turi, Bari Italy
| | - Antonio Lupini
- Dipartimento AGRARIA, località Feo di Vito snc, 89121 Reggio Calabria, Italy
| | - Antonio Mauceri
- Dipartimento AGRARIA, località Feo di Vito snc, 89121 Reggio Calabria, Italy
| | - Angelo Raffaele Caputo
- Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria, Centro di ricerca Viticoltura ed Enologia, CREA-VE, via Casamassima 148, 70010 Turi, Bari Italy
| | - Loredana Abbate
- Istituto di Bioscienze e Biorisorse CNR, Corso Calatafimi 414, 90120 Palermo, Italy
| | | | - Donato Antonacci
- Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria, Centro di ricerca Viticoltura ed Enologia, CREA-VE, via Casamassima 148, 70010 Turi, Bari Italy
| | - Francesco Sunseri
- Dipartimento AGRARIA, località Feo di Vito snc, 89121 Reggio Calabria, Italy
| | - Lucio Brancadoro
- Dipartimento di Scienze Agrarie ed Ambientali, via Celoria 2, 20133 Milan, Italy
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26
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Marrano A, Micheletti D, Lorenzi S, Neale D, Grando MS. Genomic signatures of different adaptations to environmental stimuli between wild and cultivated Vitis vinifera L. HORTICULTURE RESEARCH 2018; 5:34. [PMID: 29977570 PMCID: PMC6026492 DOI: 10.1038/s41438-018-0041-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 03/23/2018] [Accepted: 04/06/2018] [Indexed: 05/03/2023]
Abstract
The application of population genetic methods in combination with gene mapping strategies can help to identify genes and mutations selected during the evolution from wild plants to crops and to explore the considerable genetic variation still maintained in natural populations. We genotyped a grapevine germplasm collection of 44 wild (Vitis vinifera subsp. sylvestris) and 48 cultivated (V. vinifera subsp. sativa) accessions at 54 K single-nucleotide polymorphisms (SNPs) to perform a whole-genome comparison of the main population genetic statistics. The analysis of Wright Fixation Index (FST) along the whole genome allowed us to identify several putative "signatures of selection" spanning over two thousand SNPs significantly differentiated between sativa and sylvestris. Many of these genomic regions included genes involved in the adaptation to environmental changes. An overall reduction of nucleotide diversity was observed across the whole genome within sylvestris, supporting a small effective population size of the wild grapevine. Tajima's D resulted positive in both wild and cultivated subgroups, which may indicate an ongoing balancing selection. Association mapping for six domestication-related traits was performed in combination with population genetics, providing further evidence of different perception and response to environmental stresses between sativa and sylvestris.
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Affiliation(s)
- Annarita Marrano
- Department of Genomics and Biology of Fruit Crops, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all ‘Adige (TN), Italy
| | - Diego Micheletti
- Computational Biology Unit, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all ‘Adige (TN), Italy
| | - Silvia Lorenzi
- Department of Genomics and Biology of Fruit Crops, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all ‘Adige (TN), Italy
| | - David Neale
- Department of Plant Sciences, University of California, Davis, CA 95616 USA
| | - M. Stella Grando
- Department of Genomics and Biology of Fruit Crops, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all ‘Adige (TN), Italy
- Center Agriculture Food Environment (C3A), University of Trento, San Michele all ‘Adige (TN), Italy
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27
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Riaz S, De Lorenzis G, Velasco D, Koehmstedt A, Maghradze D, Bobokashvili Z, Musayev M, Zdunic G, Laucou V, Andrew Walker M, Failla O, Preece JE, Aradhya M, Arroyo-Garcia R. Genetic diversity analysis of cultivated and wild grapevine (Vitis vinifera L.) accessions around the Mediterranean basin and Central Asia. BMC PLANT BIOLOGY 2018; 18:137. [PMID: 29945553 PMCID: PMC6020434 DOI: 10.1186/s12870-018-1351-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 06/13/2018] [Indexed: 05/21/2023]
Abstract
BACKGROUND The mountainous region between the Caucasus and China is considered to be the center of domestication for grapevine. Despite the importance of Central Asia in the history of grape growing, information about the extent and distribution of grape genetic variation in this region is limited in comparison to wild and cultivated grapevines from around the Mediterranean basin. The principal goal of this work was to survey the genetic diversity and relationships among wild and cultivated grape germplasm from the Caucasus, Central Asia, and the Mediterranean basin collectively to understand gene flow, possible domestication events and adaptive introgression. RESULTS A total of 1378 wild and cultivated grapevines collected around the Mediterranean basin and from Central Asia were tested with a set of 20 nuclear SSR markers. Genetic data were analyzed (Cluster analysis, Principal Coordinate Analysis and STRUCTURE) to identify groups, and the results were validated by Nei's genetic distance, pairwise FST analysis and assignment tests. All of these analyses identified three genetic groups: G1, wild accessions from Croatia, France, Italy and Spain; G2, wild accessions from Armenia, Azerbaijan and Georgia; and G3, cultivars from Spain, France, Italy, Georgia, Iran, Pakistan and Turkmenistan, which included a small group of wild accessions from Georgia and Croatia. Wild accessions from Georgia clustered with cultivated grape from the same area (proles pontica), but also with Western Europe (proles occidentalis), supporting Georgia as the ancient center of grapevine domestication. In addition, cluster analysis indicated that Western European wild grapes grouped with cultivated grapes from the same area, suggesting that the cultivated proles occidentalis contributed more to the early development of wine grapes than the wild vines from Eastern Europe. CONCLUSIONS The analysis of genetic relationships among the tested genotypes provided evidence of genetic relationships between wild and cultivated accessions in the Mediterranean basin and Central Asia. The genetic structure indicated a considerable amount of gene flow, which limited the differentiation between the two subspecies. The results also indicated that grapes with mixed ancestry occur in the regions where wild grapevines were domesticated.
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Affiliation(s)
- Summaira Riaz
- Department of Viticulture and Enology, University of California, Davis, CA 95616 USA
| | - Gabriella De Lorenzis
- Department of Agricultural and Environmental Sciences, via Celoria 2, 20133 Milan, Italy
| | - Dianne Velasco
- Plant Sciences Department, UC Davis, Davis, CA 95616 USA
| | - Anne Koehmstedt
- USDA-ARS, National Clonal Germplasm Repository, University of California, Davis, CA 95616 USA
| | - David Maghradze
- Institute of Horticulture, Viticulture, and Oenology, Agricultural University of Georgia, Tbilisi, Georgia
| | - Zviad Bobokashvili
- Department of Fruit Crops, Genetic Resources Institute, Azerbaijan National Academy of Sciences, AZ1106, Baku, Azerbaijan
| | - Mirza Musayev
- Department of Fruit Crops, Genetic Resources Institute, Azerbaijan National Academy of Sciences, AZ1106, Baku, Azerbaijan
| | - Goran Zdunic
- Institute for Adriatic Crops and Karst Reclimation, Split, Croatia
| | | | - M. Andrew Walker
- Department of Viticulture and Enology, University of California, Davis, CA 95616 USA
| | - Osvaldo Failla
- Department of Agricultural and Environmental Sciences, via Celoria 2, 20133 Milan, Italy
| | - John E. Preece
- USDA-ARS, National Clonal Germplasm Repository, University of California, Davis, CA 95616 USA
| | - Mallikarjuna Aradhya
- USDA-ARS, National Clonal Germplasm Repository, University of California, Davis, CA 95616 USA
| | - Rosa Arroyo-Garcia
- Dpto. Biotecnología, CBGP-INIA, Campus de Montegancedo, Autovía M40 km 38, Pozuelo de Alarcón, 28223 Madrid, Spain
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28
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Laucou V, Launay A, Bacilieri R, Lacombe T, Adam-Blondon AF, Bérard A, Chauveau A, de Andrés MT, Hausmann L, Ibáñez J, Le Paslier MC, Maghradze D, Martinez-Zapater JM, Maul E, Ponnaiah M, Töpfer R, Péros JP, Boursiquot JM. Extended diversity analysis of cultivated grapevine Vitis vinifera with 10K genome-wide SNPs. PLoS One 2018; 13:e0192540. [PMID: 29420602 PMCID: PMC5805323 DOI: 10.1371/journal.pone.0192540] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 01/25/2018] [Indexed: 12/18/2022] Open
Abstract
Grapevine is a very important crop species that is mainly cultivated worldwide for fruits, wine and juice. Identification of the genetic bases of performance traits through association mapping studies requires a precise knowledge of the available diversity and how this diversity is structured and varies across the whole genome. An 18k SNP genotyping array was evaluated on a panel of Vitis vinifera cultivars and we obtained a data set with no missing values for a total of 10207 SNPs and 783 different genotypes. The average inter-SNP spacing was ~47 kbp, the mean minor allele frequency (MAF) was 0.23 and the genetic diversity in the sample was high (He = 0.32). Fourteen SNPs, chosen from those with the highest MAF values, were sufficient to identify each genotype in the sample. Parentage analysis revealed 118 full parentages and 490 parent-offspring duos, thus confirming the close pedigree relationships within the cultivated grapevine. Structure analyses also confirmed the main divisions due to an eastern-western gradient and human usage (table vs. wine). Using a multivariate approach, we refined the structure and identified a total of eight clusters. Both the genetic diversity (He, 0.26-0.32) and linkage disequilibrium (LD, 28.8-58.2 kbp) varied between clusters. Despite the short span LD, we also identified some non-recombining haplotype blocks that may complicate association mapping. Finally, we performed a genome-wide association study that confirmed previous works and also identified new regions for important performance traits such as acidity. Taken together, all the results contribute to a better knowledge of the genetics of the cultivated grapevine.
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Affiliation(s)
- Valérie Laucou
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Amandine Launay
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Roberto Bacilieri
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Thierry Lacombe
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France.,INRA Unité Expérimentale de Vassal, Centre de Ressources Biologiques de la Vigne, Marseillan-plage, France
| | | | - Aurélie Bérard
- EPGV, Univ Paris-Saclay, CEA, IG-CNG, INRA, Evry, France
| | | | | | - Ludger Hausmann
- JKI, Institute for Grapevine Breeding Geilweilerhof, Siebeldingen, Germany
| | - Javier Ibáñez
- ICVV, CSIC, Universidad de La Rioja, Gobierno de la Rioja, Logroño, Spain
| | | | | | | | - Erika Maul
- JKI, Institute for Grapevine Breeding Geilweilerhof, Siebeldingen, Germany
| | - Maharajah Ponnaiah
- EPGV, Univ Paris-Saclay, CEA, IG-CNG, INRA, Evry, France.,LBD, Univ UPMC, CNRS, INSERM, Paris, France
| | - Reinhard Töpfer
- JKI, Institute for Grapevine Breeding Geilweilerhof, Siebeldingen, Germany
| | - Jean-Pierre Péros
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Jean-Michel Boursiquot
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France.,INRA Unité Expérimentale de Vassal, Centre de Ressources Biologiques de la Vigne, Marseillan-plage, France
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29
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Belaj A, de la Rosa R, Lorite IJ, Mariotti R, Cultrera NGM, Beuzón CR, González-Plaza JJ, Muñoz-Mérida A, Trelles O, Baldoni L. Usefulness of a New Large Set of High Throughput EST-SNP Markers as a Tool for Olive Germplasm Collection Management. FRONTIERS IN PLANT SCIENCE 2018; 9:1320. [PMID: 30298075 PMCID: PMC6160578 DOI: 10.3389/fpls.2018.01320] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 08/22/2018] [Indexed: 05/08/2023]
Abstract
Germplasm collections are basic tools for conservation, characterization, and efficient use of olive genetic resources. The identification of the olive cultivars maintained in the collections is an important ongoing task which has been performed by both, morphological and molecular markers. In the present study, based on the sequencing results of previous genomic projects, a new set of 1,043 EST-SNP markers has been identified. In order to evaluate its discrimination capacity and utility in diversity studies, this set of markers was used in a representative number of accessions from 20 different olive growing countries and maintained at the World Olive Germplasm Collection of IFAPA Centre 'Alameda del Obispo' (Córdoba, Spain), one of the world's largest olive germplasm bank. Thus, the cultivated material included: cultivars belonging to previously defined core collections by means of SSR markers and agronomical traits, well known homonymy cases, possible redundancies previously identified in the collection, and recently introduced accessions. Marker stability was tested in repeated analyses of a selected number of accessions, as well as in different trees and accessions belonging to the same cultivar. In addition, 15 genotypes from a cross 'Picual' × 'Arbequina' cultivars from the IFAPA olive breeding program and a set of 89 wild genotypes were also included in the study. Our results indicate that, despite their relatively wide variability, the new set of EST-SNPs displayed lower levels of genetic diversity than SSRs in the set of olive core collections tested. However, the EST-SNP markers displayed consistent and reliable results from different plant material sources and plant propagation events. The EST-SNPs revealed a clear cut off between inter- and intra-cultivar variation in olive. Besides, they were able to reliably discriminate among different accessions, to detect possible homonymy cases as well as efficiently ascertain the presence of redundant germplasm in the collection. Additionally, these markers were highly transferable to the wild genotypes. These results, together with the low genotyping error rates and the easy and fully automated procedure used to get the genotyping data, validate the new set of EST-SNPs as possible markers of choice for olive cultivar identification.
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Affiliation(s)
- Angjelina Belaj
- IFAPA Centro Alameda del Obispo, Córdoba, Spain
- *Correspondence: Angjelina Belaj,
| | | | | | | | | | - Carmen R. Beuzón
- Instituto de Hortofruticultura Subtropical y Mediterranea, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Málaga, Spain
| | - J. J. González-Plaza
- Instituto de Hortofruticultura Subtropical y Mediterranea, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Málaga, Spain
- Present address: J. J. González-Plaza, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czechia
| | - A. Muñoz-Mérida
- CIBIO, InBIO – Research Network in Biodiversity and Evolutionary Biology, University of Porto, Porto, Portugal
| | - O. Trelles
- Department of Integrated Bioinformatics, National Institute for Bioinformatics, Universidad de Málaga, Málaga, Spain
| | - Luciana Baldoni
- CNR – Institute of Biosciences and Bioresources, Perugia, Italy
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Abstract
The earliest biomolecular archaeological and archaeobotanical evidence for grape wine and viniculture from the Near East, ca. 6,000–5,800 BC during the early Neolithic Period, was obtained by applying state-of-the-art archaeological, archaeobotanical, climatic, and chemical methods to newly excavated materials from two sites in Georgia in the South Caucasus. Wine is central to civilization as we know it in the West. As a medicine, social lubricant, mind-altering substance, and highly valued commodity, wine became the focus of religious cults, pharmacopoeias, cuisines, economies, and society in the ancient Near East. This wine culture subsequently spread around the globe. Viniculture illustrates human ingenuity in developing horticultural and winemaking techniques, such as domestication, propagation, selection of desirable traits, wine presses, suitable containers and closures, and so on. Chemical analyses of ancient organic compounds absorbed into the pottery fabrics from sites in Georgia in the South Caucasus region, dating to the early Neolithic period (ca. 6,000–5,000 BC), provide the earliest biomolecular archaeological evidence for grape wine and viniculture from the Near East, at ca. 6,000–5,800 BC. The chemical findings are corroborated by climatic and environmental reconstruction, together with archaeobotanical evidence, including grape pollen, starch, and epidermal remains associated with a jar of similar type and date. The very large-capacity jars, some of the earliest pottery made in the Near East, probably served as combination fermentation, aging, and serving vessels. They are the most numerous pottery type at many sites comprising the so-called “Shulaveri-Shomutepe Culture” of the Neolithic period, which extends into western Azerbaijan and northern Armenia. The discovery of early sixth millennium BC grape wine in this region is crucial to the later history of wine in Europe and the rest of the world.
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Cola G, Failla O, Maghradze D, Megrelidze L, Mariani L. Grapevine phenology and climate change in Georgia. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2017; 61:761-773. [PMID: 27714505 DOI: 10.1007/s00484-016-1241-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 08/17/2016] [Accepted: 08/21/2016] [Indexed: 05/27/2023]
Abstract
While the climate of Western Europe has been deeply affected by the abrupt climate change that took place in the late '1980s of the twentieth century, a similar signal is detected only few years later, in 1994, in Georgia. Grapevine phenology is deeply influenced by climate and this paper aimed to analyze how phenological timing changed before and after the climatic change of 1994. Availability of thermal resources in the two climatic phases for the five altitudinal belts in the 0-1250-m range was analyzed. A phenological dataset gathered in two experimental sites during the period 2012-2014, and a suitable thermal dataset was used to calibrate a phenological model based on the normal approach and able to describe BBCH phenological stages 61 (beginning of flowering), 71 (fruit set), and 81 (veraison). Calibration was performed for four relevant Georgian varieties (Mtsvane Kakhuri, Rkatsiteli, Ojaleshi, and Saperavi). The model validation was performed on an independent 3-year dataset gathered in Gorizia (Italy). Furthermore, in the case of variety Rkatsiteli, the model was applied to the 1974-2013 thermal time series in order to obtain phenological maps of the Georgian territory. Results show that after the climate change of 1994, Rkatsiteli showed an advance, more relevant at higher altitudes where the whole increase of thermal resource was effectively translated in phenological advance. For instance the average advance of veraison was 5.9 days for 250-500 m asl belt and 18.1 days for 750-1000 m asl). On the other hand, at lower altitudes, phenological advance was depleted by superoptimal temperatures. As a final result, some suggestions for the adaptation of viticultural practices to the current climatic phase are provided.
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Affiliation(s)
- G Cola
- Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy, University of Milan, 2, Via Celoria, Milan, 20133, Italy.
| | - O Failla
- Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy, University of Milan, 2, Via Celoria, Milan, 20133, Italy
| | - D Maghradze
- Scientific - Research Center of Agriculture, 6, Marshal Gelovani Ave, Tbilisi, 0159, Georgia
- National Wine Agency of Georgia, 6, Marshal Gelovani Ave, 0159, Tbilisi, Georgia
| | - L Megrelidze
- National Environmental Agency of Georgia, 150 David Agmashenebeli ave., 0112, Tbilisi, Georgia
| | - L Mariani
- Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy, University of Milan, 2, Via Celoria, Milan, 20133, Italy
- Lombard Museum of History of Agriculture, Piazza Bolognini 2, Sant'Angelo Lodigiano, LO, 26866, Italy
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Marrano A, Birolo G, Prazzoli ML, Lorenzi S, Valle G, Grando MS. SNP-Discovery by RAD-Sequencing in a Germplasm Collection of Wild and Cultivated Grapevines (V. vinifera L.). PLoS One 2017; 12:e0170655. [PMID: 28125640 PMCID: PMC5268455 DOI: 10.1371/journal.pone.0170655] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/09/2017] [Indexed: 01/27/2023] Open
Abstract
Whole-genome comparisons of Vitis vinifera subsp. sativa and V. vinifera subsp. sylvestris are expected to provide a better estimate of the valuable genetic diversity still present in grapevine, and help to reconstruct the evolutionary history of a major crop worldwide. To this aim, the increase of molecular marker density across the grapevine genome is fundamental. Here we describe the SNP discovery in a grapevine germplasm collection of 51 cultivars and 44 wild accessions through a novel protocol of restriction-site associated DNA (RAD) sequencing. By resequencing 1.1% of the grapevine genome at a high coverage, we recovered 34K BamHI unique restriction sites, of which 6.8% were absent in the ‘PN40024’ reference genome. Moreover, we identified 37,748 single nucleotide polymorphisms (SNPs), 93% of which belonged to the 19 assembled chromosomes with an average of 1.8K SNPs per chromosome. Nearly half of the SNPs fell in genic regions mostly assigned to the functional categories of metabolism and regulation, whereas some nonsynonymous variants were identified in genes related with the detection and response to environmental stimuli. SNP validation was carried-out, showing the ability of RAD-seq to accurately determine genotypes in a highly heterozygous species. To test the usefulness of our SNP panel, the main diversity statistics were evaluated, highlighting how the wild grapevine retained less genetic variability than the cultivated form. Furthermore, the analysis of Linkage Disequilibrium (LD) in the two subspecies separately revealed how the LD decays faster within the domesticated grapevine compared to its wild relative. Being the first application of RAD-seq in a diverse grapevine germplasm collection, our approach holds great promise for exploiting the genetic resources available in one of the most economically important fruit crops.
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Affiliation(s)
- Annarita Marrano
- Department of Genomics and Biology of Fruit Crops, Grapevine Genetics and Breeding, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Trentino, Italy
- * E-mail:
| | - Giovanni Birolo
- CRIBI Biotechnology Centre, University of Padua, Padua, Italy
| | - Maria Lucia Prazzoli
- Department of Genomics and Biology of Fruit Crops, Grapevine Genetics and Breeding, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Trentino, Italy
| | - Silvia Lorenzi
- Department of Genomics and Biology of Fruit Crops, Grapevine Genetics and Breeding, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Trentino, Italy
| | - Giorgio Valle
- CRIBI Biotechnology Centre, University of Padua, Padua, Italy
- Department of Biology, University of Padua, Padua, Italy
| | - Maria Stella Grando
- Department of Genomics and Biology of Fruit Crops, Grapevine Genetics and Breeding, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Trentino, Italy
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Drábek J, Smolíková M, Kalendar R, Pinto FAL, Pavloušek P, Klepárník K, Frébort I. Design and validation of an STR hexaplex assay for DNA profiling of grapevine cultivars. Electrophoresis 2016; 37:3059-3067. [PMID: 27696463 DOI: 10.1002/elps.201600068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 08/30/2016] [Accepted: 09/13/2016] [Indexed: 11/07/2022]
Abstract
Although the analysis of length polymorphism at STR loci has become a method of choice for grape cultivar identification, the standardization of methods for this purpose lags behind that of methods for DNA profiling in human and animal forensic genetics. The aim of this study was thus to design and validate a grapevine STR protocol with a practically useful level of multiplexing. Using free bioinformatics tools, published primer sequences, and nucleotide databases, we constructed and optimized a primer set for the simultaneous analysis of six STR loci (VVIi51, scu08vv, scu05vv, VVMD17, VrZAG47, and VrZAG83) by multiplex PCR and CE with laser-induced fluorescence, and tested it on 90 grape cultivars. The new protocol requires subnanogram quantities of the DNA template and enables automated, high-throughput genetic analysis with reasonable discriminatory power. As such, it represents a step toward further standardization of grape DNA profiling.
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Affiliation(s)
- Jiří Drábek
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic
| | | | - Ruslan Kalendar
- Institute of Biotechnology, LUKE/BI Plant Genome Dynamics, University of Helsinki, Helsinki, Finland.,RSE "National Center for Biotechnology" under the Science Committee, Ministry of Education and Science of the Republic of Kazakhstan, Astana, Kazakhstan
| | | | - Pavel Pavloušek
- Department of Viticulture and Enology, Mendel University, Brno, Czech Republic
| | - Karel Klepárník
- Institute of Analytical Chemistry of the ASCR, Brno, Czech Republic
| | - Ivo Frébort
- Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacky University, Olomouc, Czech Republic
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Maghradze D, Samanishvili G, Mekhuzla L, Mdinaradze I, Tevzadze G, Aslanishvili A, Chavchanidze P, Lordkipanidze D, Jalabadze M, Kvavadze E, Rusishvili N, Nadiradze E, Archvadze G, McGovern P, This P, Bacilieri R, Failla O, Cola G, Mariani L, Wales N, Gilbert MTP, Bouby L, Kazeli T, Ujmajuridze L, Batiuk S, Graham A, Megrelidze L, Bagratia T, Davitashvili L. Grape and wine culture in Georgia, the South Caucasus. BIO WEB OF CONFERENCES 2016. [DOI: 10.1051/bioconf/20160703027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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De Lorenzis G, Chipashvili R, Failla O, Maghradze D. Study of genetic variability in Vitis vinifera L. germplasm by high-throughput Vitis18kSNP array: the case of Georgian genetic resources. BMC PLANT BIOLOGY 2015; 15:154. [PMID: 26099513 PMCID: PMC4477415 DOI: 10.1186/s12870-015-0510-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 04/28/2015] [Indexed: 05/18/2023]
Abstract
BACKGROUND Georgia, in the Caucasian region, is considered the first domestication centre of grapevine. This country is characterized by high morphological variability of cultivated (Vitis vinifera L. subsp. sativa (DC.) Hegi) and wild (Vitis vinifera L. subsp. sylvestris (Gmel.) Hegi) compartments. The main objective of this study was to investigate the level of genetic diversity obtained by the novel custom Vitis18kSNP array, in order to analyse 71 grapevine accessions representative of wild and cultivated Georgian germplasms. RESULTS The number of loci successfully amplified was 15,317 out of 18,775 SNP and 79 % of loci resulted polymorphic. Sixty-eight unique profiles were identified, 42 for the sativa and 26 for the sylvestris compartment. Cluster analysis highlighted two main groups, one for cultivars and another for wild individuals, while a genetic structure according to accession taxonomic status and cultivar geographical origin was revealed by multivariate analysis, differentiating clearly the genotypes into 3 main groups, two groups including cultivars and one for wild individuals, even though a considerable overlapping area was observed. CONCLUSIONS Pattern of genetic diversity structure presented an additional proof that grapevine domestication events took place in the Caucasian region contributing to the crop evolution. Our results demonstrated a moderate differentiation between sativa and sylvestris compartments, even though a connection between several samples of both subspecies may be assumed for the occurrence of cross hybridization events among native wild populations and the cultivated accessions. Nevertheless, first degree relationships have not been discovered between wild and cultivated individuals.
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Affiliation(s)
- Gabriella De Lorenzis
- Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milan, Italy.
| | - Ramaz Chipashvili
- Institute of Viticulture and Oenology, Agricultural University of Georgia, Tbilisi, Georgia.
| | - Osvaldo Failla
- Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milan, Italy.
| | - David Maghradze
- Institute of Viticulture and Oenology, Agricultural University of Georgia, Tbilisi, Georgia.
- National Wine Agency of Georgia, Tbilisi, Georgia.
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