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Barazani O, Dag A, Dunseth Z. The history of olive cultivation in the southern Levant. FRONTIERS IN PLANT SCIENCE 2023; 14:1131557. [PMID: 36909452 PMCID: PMC9996078 DOI: 10.3389/fpls.2023.1131557] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
The olive tree (Olea europaea L. subsp. europaea var. europaea) is one of the most important crops across the Mediterranean, particularly the southern Levant. Its regional economic importance dates at least to the Early Bronze Age (~3600 BCE) and its cultivation contributed significantly to the culture and heritage of ancient civilizations in the region. In the southern Levant, pollen, pits and wood remains of wild olives (O. europaea subsp. europaea var. sylvestris) has been found in Middle Pleistocene sediments dating to approximately 780 kya, and are present in numerous palynological sequences throughout the Pleistocene and into the Holocene. Archeological evidence indicates the olive oil production from at least the Pottery Neolithic to Chalcolithic transition (~7600-7000 BP), and clear evidence for cultivation by, 7000 BP. It is hypothesized that olive cultivation began through the selection of local genotypes of the wild var. sylvestris. Local populations of naturally growing trees today have thus been considered wild relatives of the olive. However, millennia of cultivation raises questions about whether genuine populations of var. sylvestris remain in the region. Ancient olive landraces might thus represent an ancient genetic stock closer to the ancestor gene pool. This review summarizes the evidence supporting the theory that olives were first cultivated in the southern Levant and reviews our genetic work characterizing local ancient cultivars. The significance and importance of old cultivars and wild populations are discussed, given the immediate need to adapt agricultural practices and crops to environmental degradation and global climate change.
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Affiliation(s)
- Oz Barazani
- Agricultural Research Organization, Institute of Plant Sciences, Department of Vegetables and Field Crops, Rishon LeZion, Israel
| | - Arnon Dag
- Agricultural Research Organization, Institute of Plant Sciences, Department of Fruit Tree Sciences, Gilat Research Center, Gilat, Israel
| | - Zachary Dunseth
- Joukowsky Institute for Archaeology and the Ancient World, Brown University, Providence, RI, United States
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2
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Morphological and Eco-Geographic Variation in Algerian Wild Olives. PLANTS 2022; 11:plants11141803. [PMID: 35890437 PMCID: PMC9319472 DOI: 10.3390/plants11141803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/24/2022] [Accepted: 07/06/2022] [Indexed: 11/20/2022]
Abstract
Algerian wild olives can represent an important resource for cultivated olive breeding, since they are characterized by great morphological variability. Moreover, they grow in different bioclimatic environments, including dry and hot climates, making the collections of wild olives a good source of abiotic stress resistance traits. Our study aimed to investigate the morphological diversity of 175 wild olive trees collected in North Algeria along with a wide range of different bioclimatic habitats for studying traits of olive accessions in relation to their different ecogeographical parameters. Wild olive trees were found in five different bioclimates areas spanning from humid to Saharan areas. They showed high variation in all traits, in particular fruit and stone weight, which expressed the highest coefficient of variation, and a high positive correlation between fruit weight/width. Cluster analysis separated the samples into two groups mostly based on fruit and stone size, while no relationship was observed with the area of sampling. Only the Saharan samples showed significantly different foliar and fruit characteristics compared to samples from other bioclimatic areas.
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Sisodiya S, Sinha A, Debnath M, Shekhawat R, Shekhawat SS. Protecting Superfood Olive Crop from Pests and Pathogens Using Image
Processing Techniques: A Review. CURRENT NUTRITION & FOOD SCIENCE 2022. [DOI: 10.2174/1573401318666211227103001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Olive (Oleo europaea L.) cultivars are widely cultivated all over the
world. However, they are often attacked by pests and pathogens. This deteriorates the quality of
the crop, leading to less yield of olive oil. The different infections that cause comparable disease
symptoms on olive leaves can be classified using image processing techniques.
Objective:
The olive has established itself as a superfood and a possible source of medicine, owing
to the rapid increase in the availability of data in the field of nutrigenomics. The goal of this
review is to underline the importance of applying image processing techniques to detect and
classify diseases early.
Method:
PubMed, ScienceDirect, and Google Scholar were used to conduct a systematic literature
search using the keywords olive oil, pest and pathogen of olives, and metabolic profiling.
Results:
Infections caused by infectious diseases frequently result in significant losses and lowquality
olive oil yields. Early detection of disease infestations can safeguard the olive plant and
its yield.
Results:
This strategy can help protect the crop from disease spread, and early detection and
classification of the disease can aid in prompt prophylaxis of diseased olive plants before the
disease worsens. Protecting olive plants from pests and pathogens can help keep the yield and
quality of olive oil consistent.
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Affiliation(s)
- Smita Sisodiya
- Department of Biosciences, Manipal University Jaipur, Jaipur, Rajasthan, India
| | - Aditya Sinha
- Department of Computer Science &
Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India
| | - Mousumi Debnath
- Department of Biosciences, Manipal University Jaipur, Jaipur, Rajasthan, India
| | - Rajveer Shekhawat
- Department of Computer Science &
Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India
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Friel J, Bombarely A, Fornell CD, Luque F, Fernández-Ocaña AM. Comparative Analysis of Genotyping by Sequencing and Whole-Genome Sequencing Methods in Diversity Studies of Olea europaea L. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10112514. [PMID: 34834877 PMCID: PMC8622120 DOI: 10.3390/plants10112514] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/27/2021] [Accepted: 11/11/2021] [Indexed: 05/11/2023]
Abstract
Olive, Olea europaea L., is a tree of great economic and cultural importance in the Mediterranean basin. Thousands of cultivars have been described, of which around 1200 are conserved in the different olive germplasm banks. The genetic characterisation of these cultivars can be performed in different ways. Whole-genome sequencing (WGS) provides more information than the reduced representation methods such as genotype by sequencing (GBS), but at a much higher cost. This may change as the cost of sequencing continues to drop, but, currently, genotyping hundreds of cultivars using WGS is not a realistic goal for most research groups. Our aim is to systematically compare both methodologies applied to olive genotyping and summarise any possible recommendations for the geneticists and molecular breeders of the olive scientific community. In this work, we used a selection of 24 cultivars from an olive core collection from the World Olive Germplasm Collection of the Andalusian Institute of Agricultural and Fisheries Research and Training (WOGBC), which represent the most of the cultivars present in cultivated fields over the world. Our results show that both methodologies deliver similar results in the context of phylogenetic analysis and popular population genetic analysis methods such as clustering. Furthermore, WGS and GBS datasets from different experiments can be merged in a single dataset to perform these analytical methodologies with proper filtering. We also tested the influence of the different olive reference genomes in this type of analysis, finding that they have almost no effect when estimating genetic relationships. This work represents the first comparative study between both sequencing techniques in olive. Our results demonstrate that the use of GBS is a perfectly viable option for replacing WGS and reducing research costs when the goal of the experiment is to characterise the genetic relationship between different accessions. Besides this, we show that it is possible to combine variants from GBS and WGS datasets, allowing the reuse of publicly available data.
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Affiliation(s)
- James Friel
- Dipartimento di Bioscienze, Università degli Studi di Milano, 20122 Milan, Italy; (J.F.); (A.B.)
| | - Aureliano Bombarely
- Dipartimento di Bioscienze, Università degli Studi di Milano, 20122 Milan, Italy; (J.F.); (A.B.)
- Instituto de Biologıa Molecular y Celular de Plantas (IBMCP), CSIC, Universitat Politecnica de Valencia, 46011 Valencia, Spain
| | - Carmen Dorca Fornell
- Departamento de Didáctica de las Matemáticas y las Ciencias Experimentales, Facultad de Educación, Universidad Internacional de la Rioja (UNIR), 26006 Logroño, Spain;
| | - Francisco Luque
- Instituto Universitario de Investigación en Olivar y Aceites de Oliva (INUO), Universidad de Jaén, 23071 Jaén, Spain;
| | - Ana Maria Fernández-Ocaña
- Departamento de Biología Animal, Biologia Vegetal y Ecología, Facultad de Ciencias Experimentales, Campus de Las Lagunillas s/n, Universidad de Jaén UJA, 23071 Jaén, Spain
- Correspondence:
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Assessment of population structure, genetic diversity and relationship of Mediterranean olive accessions using SSR markers and computational tools. Biotechnol Lett 2021; 44:113-127. [PMID: 34761348 DOI: 10.1007/s10529-021-03204-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 10/09/2021] [Indexed: 01/09/2023]
Abstract
Olive tree is an emblematic crop of the Mediterranean region, mainly renowned for its fruit oil, although the species provides several industrial purposes. The Mediterranean basin constitutes the origin of olive species diversification and represents a valuable source of genetic variability of olive germplasm. Therefore, the evaluation of the diversity and the population structure of this Mediterranean germplasm is a challenge for olive species preservation, crop breeding and genetic improvement. In this context, our study aims to analyze the genetic diversity and the population structure of 79 Mediterranean olive accessions using 15 genomic SSRs and by applying computational model-based approaches. The used SSRs revealed a total number of 225 alleles with a mean of 15 alleles per locus. Observed and expected heterozygosity (Ho = 0.79, He = 0.805) with a Polymorphism Information Content value of 0.775 indicate high level of genetic diversity. All results of the Unweighted Pair Group Method with Arithmetic (UPGMA), Jaccard similarity index, Principal Coordinate Analysis (PCoA) and the Bayesian analyses supported the separation of the Mediterranean varieties in two sub-populations, one of which mainly composed by Spanish accessions.
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Julca I, Marcet-Houben M, Cruz F, Gómez-Garrido J, Gaut BS, Díez CM, Gut IG, Alioto TS, Vargas P, Gabaldón T. Genomic evidence for recurrent genetic admixture during the domestication of Mediterranean olive trees (Olea europaea L.). BMC Biol 2020; 18:148. [PMID: 33100219 PMCID: PMC7586694 DOI: 10.1186/s12915-020-00881-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 09/27/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Olive tree (Olea europaea L. subsp. europaea, Oleaceae) has been the most emblematic perennial crop for Mediterranean countries since its domestication around 6000 years ago in the Levant. Two taxonomic varieties are currently recognized: cultivated (var. europaea) and wild (var. sylvestris) trees. However, it remains unclear whether olive cultivars derive from a single initial domestication event followed by secondary diversification, or whether cultivated lineages are the result of more than a single, independent primary domestication event. To shed light into the recent evolution and domestication of the olive tree, here we analyze a group of newly sequenced and available genomes using a phylogenomics and population genomics framework. RESULTS We improved the assembly and annotation of the reference genome, newly sequenced the genomes of twelve individuals: ten var. europaea, one var. sylvestris, and one outgroup taxon (subsp. cuspidata)-and assembled a dataset comprising whole genome data from 46 var. europaea and 10 var. sylvestris. Phylogenomic and population structure analyses support a continuous process of olive tree domestication, involving a major domestication event, followed by recurrent independent genetic admixture events with wild populations across the Mediterranean Basin. Cultivated olives exhibit only slightly lower levels of genetic diversity than wild forms, which can be partially explained by the occurrence of a mild population bottleneck 3000-14,000 years ago during the primary domestication period, followed by recurrent introgression from wild populations. Genes associated with stress response and developmental processes were positively selected in cultivars, but we did not find evidence that genes involved in fruit size or oil content were under positive selection. This suggests that complex selective processes other than directional selection of a few genes are in place. CONCLUSIONS Altogether, our results suggest that a primary domestication area in the eastern Mediterranean basin was followed by numerous secondary events across most countries of southern Europe and northern Africa, often involving genetic admixture with genetically rich wild populations, particularly from the western Mediterranean Basin.
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Affiliation(s)
- Irene Julca
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, 08003, Barcelona, Spain
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), 08003, Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB), 08193, Barcelona, Spain
| | - Marina Marcet-Houben
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, 08003, Barcelona, Spain
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), 08003, Barcelona, Spain
- Present address: Barcelona Supercomputing Centre (BSC-CNS), and Institute for Research in Biomedicine (IRB), Barcelona, Spain
| | - Fernando Cruz
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - Jèssica Gómez-Garrido
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - Brandon S Gaut
- Department Ecology and Evolutionary Biology, University of California Irvine, Irvine, CA, 92697, USA
| | | | - Ivo G Gut
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), 08003, Barcelona, Spain
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - Tyler S Alioto
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), 08003, Barcelona, Spain
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028, Barcelona, Spain
| | - Pablo Vargas
- Royal Botanical Garden of Madrid. Consejo Superior de Investigaciones Científicas (CSIC), 28014, Madrid, Spain
| | - Toni Gabaldón
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, 08003, Barcelona, Spain.
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), 08003, Barcelona, Spain.
- Present address: Barcelona Supercomputing Centre (BSC-CNS), and Institute for Research in Biomedicine (IRB), Barcelona, Spain.
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain.
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Chapuis E, Ali N, Noûs C, Besnard G. Adaptive response to olive cultivation in a generalist parasitic nematode (Meloidogyne javanica). Biol J Linn Soc Lond 2020. [DOI: 10.1093/biolinnean/blaa089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractCultivated plants usually differ from their wild progenitors in several morphological and/or physiological traits. Their microbe communities might also differ because of adaptation to new conditions related to cultivation. To test this hypothesis, we investigated morphological traits in a parthenogenetic root-knot nematode (Meloidogyne javanica) from natural and agricultural environments. Seventeen populations of M. javanica were sampled on cultivated and wild olives in Morocco, then maintained in controlled conditions for a ‘common garden’ experiment. We estimated the genetic variation based on three traits (stylet size, neck width and body width) by a quantitative genetic design (ten families per population and nine individuals per family were measured), and molecular variation was investigated with a mitochondrial marker to identify the genetic lineages of nematode isolates sampled from wild and cultivated olives. Significant morphological differences were detected between individuals from wild vs. cultivated hosts for the three traits, whereas no phylogenetic clustering was observed among isolates collected on those two hosts. Our results thus suggest an adaptive response of the asexual parasite, possibly related to the deep modification of soil nematode communities between natural olive stands and orchards.
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Affiliation(s)
- Elodie Chapuis
- CBGP, IRD, CIRAD, INRA, Montpellier SupAgro, University of Montpellier, Montpellier, France
| | - Nadeen Ali
- CBGP, IRD, CIRAD, INRA, Montpellier SupAgro, University of Montpellier, Montpellier, France
| | | | - Guillaume Besnard
- CNRS, UPS, IRD, UMR5174, EDB, Université Toulouse III Paul Sabatier, Toulouse Cedex, France
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Mariotti R, Belaj A, De La Rosa R, Leòn L, Brizioli F, Baldoni L, Mousavi S. EST-SNP Study of Olea europaea L. Uncovers Functional Polymorphisms between Cultivated and Wild Olives. Genes (Basel) 2020; 11:E916. [PMID: 32785094 PMCID: PMC7465833 DOI: 10.3390/genes11080916] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/04/2020] [Accepted: 08/07/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The species Olea europaea includes cultivated varieties (subsp. europaea var. europaea), wild plants (subsp. europaea var. sylvestris), and five other subspecies spread over almost all continents. Single nucleotide polymorphisms in the expressed sequence tag able to underline intra-species differentiation are not yet identified, beyond a few plastidial markers. METHODS In the present work, more than 1000 transcript-specific SNP markers obtained by the genotyping of 260 individuals were studied. These genotypes included cultivated, oleasters, and samples of subspecies guanchica, and were analyzed in silico, in order to identify polymorphisms on key genes distinguishing different Olea europaea forms. RESULTS Phylogeny inference and principal coordinate analysis allowed to detect two distinct clusters, clearly separating wilds and guanchica samples from cultivated olives, meanwhile the structure analysis made possible to differentiate these three groups. Sequences carrying the polymorphisms that distinguished wild and cultivated olives were analyzed and annotated, allowing to identify 124 candidate genes that have a functional role in flower development, stress response, or involvement in important metabolic pathways. Signatures of selection that occurred during olive domestication, were detected and reported. CONCLUSION This deep EST-SNP analysis provided important information on the genetic and genomic diversity of the olive complex, opening new opportunities to detect gene polymorphisms with potential functional and evolutionary roles, and to apply them in genomics-assisted breeding, highlighting the importance of olive germplasm conservation.
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Affiliation(s)
- Roberto Mariotti
- CNR—Institute of Biosciences and Bioresources, Via Madonna Alta 130, 06128 Perugia, Italy; (R.M.); (F.B.); (S.M.)
| | - Angjelina Belaj
- IFAPA—Centro Alameda del Obispo, Avda Menendez Pidal, s/n, E-14004 Cordoba, Spain; (A.B.); (R.D.L.R.); (L.L.)
| | - Raul De La Rosa
- IFAPA—Centro Alameda del Obispo, Avda Menendez Pidal, s/n, E-14004 Cordoba, Spain; (A.B.); (R.D.L.R.); (L.L.)
| | - Lorenzo Leòn
- IFAPA—Centro Alameda del Obispo, Avda Menendez Pidal, s/n, E-14004 Cordoba, Spain; (A.B.); (R.D.L.R.); (L.L.)
| | - Federico Brizioli
- CNR—Institute of Biosciences and Bioresources, Via Madonna Alta 130, 06128 Perugia, Italy; (R.M.); (F.B.); (S.M.)
| | - Luciana Baldoni
- CNR—Institute of Biosciences and Bioresources, Via Madonna Alta 130, 06128 Perugia, Italy; (R.M.); (F.B.); (S.M.)
| | - Soraya Mousavi
- CNR—Institute of Biosciences and Bioresources, Via Madonna Alta 130, 06128 Perugia, Italy; (R.M.); (F.B.); (S.M.)
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Niu E, Jiang C, Wang W, Zhang Y, Zhu S. Chloroplast Genome Variation and Evolutionary Analysis of Olea europaea L. Genes (Basel) 2020; 11:genes11080879. [PMID: 32756391 PMCID: PMC7463426 DOI: 10.3390/genes11080879] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/21/2020] [Accepted: 07/27/2020] [Indexed: 12/28/2022] Open
Abstract
Olive (Olea europaea L.) is a very important woody tree and favored by consumers because of the fruit's high-quality olive oil. Chloroplast genome analysis will provide insights into the chloroplast variation and genetic evolution of olives. The complete chloroplast genomes of three accessions (O. europaea subsp. cuspidata isolate Yunnan, O. europaea subsp. europaea var. sylvestris, and O. europaea subsp. europaea var. frantoio) were obtained by next-generation sequencing technology. A total of 133 coding regions were identified in the three chloroplast genomes without rearrangement. O. europaea subsp. europaea var. sylvestris and O. europaea subsp. europaea var. frantoio had the same sequences (155,886 bp), while O. europaea subsp. cuspidata isolate Yunnan (155,531 bp) presented a large gap between rps16 and trnQ-UUG genes with six small gaps and fewer microsatellites. The whole chloroplast genomes of 11 O. europaea were divided into two main groups by a phylogenetic tree and O. europaea subsp. cuspidata formed a separate group (Cuspidata group) with the other subspecies (Mediterranean/North African group). Identification of consistency and diversity among O. europaea subspecies will benefit the exploration of domestication events and facilitate molecular-assisted breeding for O. europaea.
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Affiliation(s)
- Erli Niu
- Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (E.N.); (W.W.); (Y.Z.)
| | | | - Wei Wang
- Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (E.N.); (W.W.); (Y.Z.)
| | - Yu Zhang
- Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (E.N.); (W.W.); (Y.Z.)
| | - Shenlong Zhu
- Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (E.N.); (W.W.); (Y.Z.)
- Correspondence: ; Tel./Fax: +86-571-8724-7623
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Haddad B, Gristina AS, Mercati F, Saadi AE, Aiter N, Martorana A, Sharaf A, Carimi F. Molecular Analysis of the Official Algerian Olive Collection Highlighted a Hotspot of Biodiversity in the Central Mediterranean Basin. Genes (Basel) 2020; 11:E303. [PMID: 32183122 PMCID: PMC7140851 DOI: 10.3390/genes11030303] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/04/2020] [Accepted: 03/09/2020] [Indexed: 12/20/2022] Open
Abstract
Genetic diversity and population structure studies of local olive germplasm are important to safeguard biodiversity, for genetic resources management and to improve the knowledge on the distribution and evolution patterns of this species. In the present study Algerian olive germplasm was characterized using 16 nuclear (nuSSR) and six chloroplast (cpSSR) microsatellites. Algerian varieties, collected from the National Olive Germplasm Repository (ITAFV), 10 of which had never been genotyped before, were analyzed. Our results highlighted the presence of an exclusive genetic core represented by 13 cultivars located in a mountainous area in the North-East of Algeria, named Little Kabylie. Comparison with published datasets, representative of the Mediterranean genetic background, revealed that the most Algerian varieties showed affinity with Central and Eastern Mediterranean cultivars. Interestingly, cpSSR phylogenetic analysis supported results from nuSSRs, highlighting similarities between Algerian germplasm and wild olives from Greece, Italy, Spain and Morocco. This study sheds light on the genetic relationship of Algerian and Mediterranean olive germplasm suggesting possible events of secondary domestication and/or crossing and hybridization across the Mediterranean area. Our findings revealed a distinctive genetic background for cultivars from Little Kabylie and support the increasing awareness that North Africa represents a hotspot of diversity for crop varieties and crop wild relative species.
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Affiliation(s)
- Benalia Haddad
- Département de Productions Végétales, Laboratoire Amélioration Intégrative Des Productions Végétales (AIPV, C2711100), Ecole Nationale Supérieure Agronomique (ENSA), Hassan Badi, El Harrach, Algiers 16000, Algeria;
| | - Alessandro Silvestre Gristina
- Institute of Biosciences and BioResources, National Research Council (CNR), Research Division of Palermo, Corso Calatafimi 414, 90129 Palermo, Italy; (F.M.); (A.M.); (A.S.); (F.C.)
| | - Francesco Mercati
- Institute of Biosciences and BioResources, National Research Council (CNR), Research Division of Palermo, Corso Calatafimi 414, 90129 Palermo, Italy; (F.M.); (A.M.); (A.S.); (F.C.)
| | - Abd Elkader Saadi
- University Hassiba Benbouali, Faculty of Science of Nature and Life, Plant Biotechnology Laboratory, BP 151, Chlef 02000, Algeria;
| | - Nassima Aiter
- Université Saad Dahleb-Blida 1, Faculté des Sciences de la Nature et de la Vie, Laboratoire de Biotechnologie des Productions Végétales, Département de Biotechnologies, Blida 09000, Algeria
- Laboratoire de culture in vitro, Département central, Institut Technique de l’Arboriculture Fruitière et de la Vigne, ITAFV, Algiers 16000, Algeria
| | - Adriana Martorana
- Institute of Biosciences and BioResources, National Research Council (CNR), Research Division of Palermo, Corso Calatafimi 414, 90129 Palermo, Italy; (F.M.); (A.M.); (A.S.); (F.C.)
| | - Abdoallah Sharaf
- Institute of Biosciences and BioResources, National Research Council (CNR), Research Division of Palermo, Corso Calatafimi 414, 90129 Palermo, Italy; (F.M.); (A.M.); (A.S.); (F.C.)
- Institute of Molecular Biology of Plants, Biology Centre, CAS, Branišovská 31, 37005 České Budějovice, Czech Republic
| | - Francesco Carimi
- Institute of Biosciences and BioResources, National Research Council (CNR), Research Division of Palermo, Corso Calatafimi 414, 90129 Palermo, Italy; (F.M.); (A.M.); (A.S.); (F.C.)
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Narváez I, Martín C, Jiménez-Díaz RM, Mercado JA, Pliego-Alfaro F. Plant Regeneration via Somatic Embryogenesis in Mature Wild Olive Genotypes Resistant to the Defoliating Pathotype of Verticillium dahliae. FRONTIERS IN PLANT SCIENCE 2019; 10:1471. [PMID: 31798615 PMCID: PMC6868069 DOI: 10.3389/fpls.2019.01471] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 10/22/2019] [Indexed: 05/04/2023]
Abstract
Regeneration capacity, via somatic embryogenesis, of four wild olive genotypes differing in their response to defoliating Verticillium dahliae (resistant genotypes StopVert, OutVert, Ac-18 and the susceptible one, Ac-15) has been evaluated. To induce somatic embryogenesis, methodologies previously used in wild or cultivated olive were used. Results revealed the importance of genotype, explant type, and hormonal balance in the induction process. Use of apical buds obtained from micropropagated shoots following a methodology used in cultivated olive (4 days induction in liquid 1/2 MS medium supplemented with 30 µM TDZ-0.54 µM NAA, followed by 8 weeks in basal 1/2 MS medium) was adequate to obtain somatic embryos in two genotypes, StopVert and Ac-18, with a 5.0 and 2.5% induction rates, respectively; however, no embryogenic response was observed in the other two genotypes. Embryogenic cultures were transferred to basal ECO medium supplemented with 0.5 µM 2iP, 0.44 µM BA, and 0.25 µM indole-3-butyric acid (IBA) for further proliferation. Somatic embryos from StopVert were maturated and germinated achieving a 35.4% conversion rate. An analysis of genetic stability on StopVert, using Simple Sequence Repeats (SSRs) and Random Amplified Polymorphic DNA (RAPDs) markers, was carried out in embryogenic callus, plants regenerated from this callus and two controls, micropropagated shoots used as explant source, and the original mother plant. Polymorphism was only observed in the banding pattern generated by RAPDs in 1 of the 10 callus samples evaluated, resulting in a variation rate of 0.07%. This is the first time in which plants have been regenerated via somatic embryogenesis in wild olive.
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Affiliation(s)
- Isabel Narváez
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Departamento de Botánica y Fisiología Vegetal, Universidad de Málaga, Málaga, Spain
| | - Carmen Martín
- Departamento de Biotecnología-Biología Vegetal, ETS Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
| | - Rafael M. Jiménez-Díaz
- Departamento de Agronomía, College of Agriculture and Forestry (ETSIAM), Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario ceiA3, Edificio C-4 Celestino Mutis, Campus Rabanales, Ctra. de Madrid, Córdoba, Spain
| | - Jose A. Mercado
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Departamento de Botánica y Fisiología Vegetal, Universidad de Málaga, Málaga, Spain
| | - Fernando Pliego-Alfaro
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Departamento de Botánica y Fisiología Vegetal, Universidad de Málaga, Málaga, Spain
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12
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Gros‐Balthazard M, Besnard G, Sarah G, Holtz Y, Leclercq J, Santoni S, Wegmann D, Glémin S, Khadari B. Evolutionary transcriptomics reveals the origins of olives and the genomic changes associated with their domestication. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 100:143-157. [PMID: 31192486 PMCID: PMC6851578 DOI: 10.1111/tpj.14435] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/29/2019] [Accepted: 06/03/2019] [Indexed: 05/11/2023]
Abstract
The olive (Olea europaea L. subsp. europaea) is one of the oldest and most socio-economically important cultivated perennial crop in the Mediterranean region. Yet, its origins are still under debate and the genetic bases of the phenotypic changes associated with its domestication are unknown. We generated RNA-sequencing data for 68 wild and cultivated olive trees to study the genetic diversity and structure both at the transcription and sequence levels. To localize putative genes or expression pathways targeted by artificial selection during domestication, we employed a two-step approach in which we identified differentially expressed genes and screened the transcriptome for signatures of selection. Our analyses support a major domestication event in the eastern part of the Mediterranean basin followed by dispersion towards the West and subsequent admixture with western wild olives. While we found large changes in gene expression when comparing cultivated and wild olives, we found no major signature of selection on coding variants and weak signals primarily affected transcription factors. Our results indicated that the domestication of olives resulted in only moderate genomic consequences and that the domestication syndrome is mainly related to changes in gene expression, consistent with its evolutionary history and life history traits.
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Affiliation(s)
- Muriel Gros‐Balthazard
- AGAP, University Montpellier, CIRAD, INRAMontpellier SupAgroMontpellierFrance
- Present address:
New York University Abu Dhabi (NYUAD), Center for Genomics and Systems BiologySaadiyat IslandAbu DhabiUnited Arab Emirates
| | | | - Gautier Sarah
- AGAP, University Montpellier, CIRAD, INRAMontpellier SupAgroMontpellierFrance
| | - Yan Holtz
- AGAP, University Montpellier, CIRAD, INRAMontpellier SupAgroMontpellierFrance
| | - Julie Leclercq
- AGAP, University Montpellier, CIRAD, INRAMontpellier SupAgroMontpellierFrance
| | - Sylvain Santoni
- AGAP, University Montpellier, CIRAD, INRAMontpellier SupAgroMontpellierFrance
| | - Daniel Wegmann
- Department of BiologyUniversity of FribourgFribourgSwitzerland
- Swiss Institute of BioinformaticsFribourgSwitzerland
| | - Sylvain Glémin
- CNRSUniversité de RennesECOBIO (Ecosystèmes, biodiversité, évolution) − UMR 6553F‐35000RennesFrance
- Department of Ecology and GeneticsEvolutionary Biology CentreUppsala UniversityUppsalaSweden
| | - Bouchaib Khadari
- AGAP, University Montpellier, CIRAD, INRAMontpellier SupAgroMontpellierFrance
- Conservatoire Botanique National MéditerranéenUMR AGAPMontpellierFrance
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Sion S, Taranto F, Montemurro C, Mangini G, Camposeo S, Falco V, Gallo A, Mita G, Debbabi OS, Amar FB, Pavan S, Roseti V, Miazzi MM. Genetic Characterization of Apulian Olive Germplasm as Potential Source in New Breeding Programs. PLANTS (BASEL, SWITZERLAND) 2019; 8:E268. [PMID: 31387331 PMCID: PMC6724140 DOI: 10.3390/plants8080268] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/30/2019] [Accepted: 07/31/2019] [Indexed: 11/17/2022]
Abstract
The olive is a fruit tree species with a century-old history of cultivation in theMediterranean basin. In Apulia (Southern Italy), the olive is of main social, cultural and economicimportance, and represents a hallmark of the rural landscape. However, olive cultivation in thisregion is threatened by the recent spread of the olive quick decline syndrome (OQDS) disease, thusthere is an urgent need to explore biodiversity and search for genetic sources of resistance. Herein,a genetic variation in Apulian olive germplasm was explored, as a first step to identify genotypeswith enhanced bio-agronomic traits, including resistance to OQDS. A preselected set of nuclearmicrosatellite markers allowed the acquisition of genotypic profiles, and to define geneticrelationships between Apulian germplasm and widespread cultivars. The analysis highlighted thebroad genetic variation in Apulian accessions and the presence of different unique genetic profiles.The results of this study lay a foundation for the organization of new breeding programs for olivegenetic improvement.
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Affiliation(s)
- S Sion
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, 70121 Bari, Italy
| | - F Taranto
- Research Centre for Cereal and Industrial Crops, (CREA-CI), S.S. 71122 Foggia, Italy.
| | - C Montemurro
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, 70121 Bari, Italy.
| | - G Mangini
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, 70121 Bari, Italy
| | - S Camposeo
- Department of Agricultural and Environmental Sciences, University of Bari Aldo Moro, 70121 Bari, Italy
| | - V Falco
- CNR Institute of Sciences of Food Production, Unit of Lecce, 73100 Lecce, Italy
| | - A Gallo
- CNR Institute of Sciences of Food Production, Unit of Lecce, 73100 Lecce, Italy
| | - G Mita
- CNR Institute of Sciences of Food Production, Unit of Lecce, 73100 Lecce, Italy
| | | | - F Ben Amar
- Institut de l'Olivier, Route de l'aéroport, BP 1087, Sfax 3000, Tunisia
| | - S Pavan
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, 70121 Bari, Italy
| | - V Roseti
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, 70121 Bari, Italy
| | - M M Miazzi
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, 70121 Bari, Italy
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14
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Besnard G, Terral JF, Cornille A. On the origins and domestication of the olive: a review and perspectives. ANNALS OF BOTANY 2018; 121:385-403. [PMID: 29293871 PMCID: PMC5838823 DOI: 10.1093/aob/mcx145] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 10/12/2017] [Indexed: 05/18/2023]
Abstract
Background Unravelling domestication processes is crucial for understanding how species respond to anthropogenic pressures, forecasting crop responses to future global changes and improving breeding programmes. Domestication processes for clonally propagated perennials differ markedly from those for seed-propagated annual crops, mostly due to long generation times, clonal propagation and recurrent admixture with local forms, leading to a limited number of generations of selection from wild ancestors. However, additional case studies are required to document this process more fully. Scope The olive is an iconic species in Mediterranean cultural history. Its multiple uses and omnipresence in traditional agrosystems have made this species an economic pillar and cornerstone of Mediterranean agriculture. However, major questions about the domestication history of the olive remain unanswered. New paleobotanical, archeological, historical and molecular data have recently accumulated for olive, making it timely to carry out a critical re-evaluation of the biogeography of wild olives and the history of their cultivation. We review here the chronological history of wild olives and discuss the questions that remain unanswered, or even unasked, about their domestication history in the Mediterranean Basin. We argue that more detailed ecological genomics studies of wild and cultivated olives are crucial to improve our understanding of olive domestication. Multidisciplinary research integrating genomics, metagenomics and community ecology will make it possible to decipher the evolutionary ecology of one of the most iconic domesticated fruit trees worldwide. Conclusion The olive is a relevant model for improving our knowledge of domestication processes in clonally propagated perennial crops, particularly those of the Mediterranean Basin. Future studies on the ecological and genomic shifts linked to domestication in olive and its associated community will provide insight into the phenotypic and molecular bases of crop adaptation to human uses.
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Affiliation(s)
- Guillaume Besnard
- CNRS-UPS-ENSFEA-IRD, EDB, UMR 5174, Université Paul Sabatier, Toulouse Cedex , France
| | - Jean-Frédéric Terral
- ISEM, UMR 5554, CNRS-Université de Montpellier-IRD-EPHE, Equipe Dynamique de la Biodiversité, Anthropo-écologie, Montpellier Cedex, France
- International Associated Laboratory (LIA, CNRS) EVOLea, Zürich, Switzerland
| | - Amandine Cornille
- Center for Adaptation to a Changing Environment, ETH Zürich, Zürich, Switzerland
- GQE - Le Moulon, INRA, Univ. Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Gif-sur-Yvette, France
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15
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Sebastiani L, Busconi M. Recent developments in olive (Olea europaea L.) genetics and genomics: applications in taxonomy, varietal identification, traceability and breeding. PLANT CELL REPORTS 2017; 36:1345-1360. [PMID: 28434019 DOI: 10.1007/s00299-017-2145-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 04/17/2017] [Indexed: 05/20/2023]
Abstract
The latest results in DNA markers application and genomic studies in olive. Olive (Olea europaea L.) is among the most ancient tree crops worldwide and the source of oil beneficial for human health. Despite this, few data on olive genetics are available in comparison with other cultivated plant species. Molecular information is mainly linked to molecular markers and their application to the study of DNA variation in the Olea europaea complex. In terms of genomic research, efforts have been made in sequencing, heralding the era of olive genomic. The present paper represents an update of a previous review work published in this journal in 2011. The review is again mainly focused on DNA markers, whose application still constitutes a relevant percentage of the most recently published researches. Since the olive genomic era has recently started, the latest results in this field are also being discussed.
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Affiliation(s)
- L Sebastiani
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà, 33, 56127, Pisa, Italy.
| | - M Busconi
- Dipartimento di Scienze delle Produzioni Vegetali Sostenibili, Università Cattolica del Sacro Cuore, Piacenza, Italy
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Stetter MG, Müller T, Schmid KJ. Genomic and phenotypic evidence for an incomplete domestication of South American grain amaranth (Amaranthus caudatus
). Mol Ecol 2017; 26:871-886. [DOI: 10.1111/mec.13974] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 11/09/2016] [Accepted: 12/14/2016] [Indexed: 01/16/2023]
Affiliation(s)
- Markus G. Stetter
- Institute of Plant Breeding, Seed Science and Population Genetics; University of Hohenheim; Fruwirthstraße 21 D-70599 Stuttgart Germany
| | - Thomas Müller
- Institute of Plant Breeding, Seed Science and Population Genetics; University of Hohenheim; Fruwirthstraße 21 D-70599 Stuttgart Germany
| | - Karl J. Schmid
- Institute of Plant Breeding, Seed Science and Population Genetics; University of Hohenheim; Fruwirthstraße 21 D-70599 Stuttgart Germany
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Besnard G, Cuneo P. An ecological and evolutionary perspective on the parallel invasion of two cross-compatible trees. AOB PLANTS 2016; 8:plw056. [PMID: 27519914 PMCID: PMC5018386 DOI: 10.1093/aobpla/plw056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 08/01/2016] [Indexed: 05/29/2023]
Abstract
Invasive trees are generally seen as ecosystem-transforming plants that can have significant impacts on native vegetation, and often require management and control. Understanding their history and biology is essential to guide actions of land managers. Here, we present a summary of recent research into the ecology, phylogeography and management of invasive olives, which are now established outside of their native range as high ecological impact invasive trees. The parallel invasion of European and African olive in different climatic zones of Australia provides an interesting case study of invasion, characterized by early genetic admixture between domesticated and wild taxa. Today, the impact of the invasive olives on native vegetation and ecosystem function is of conservation concern, with European olive a declared weed in areas of South Australia, and African olive a declared weed in New South Wales and Pacific islands. Population genetics was used to trace the origins and invasion of both subspecies in Australia, indicating that both olive subspecies have hybridized early after introduction. Research also indicates that African olive populations can establish from a low number of founder individuals even after successive bottlenecks. Modelling based on distributional data from the native and invasive range identified a shift of the realized ecological niche in the Australian invasive range for both olive subspecies, which was particularly marked for African olive. As highly successful and long-lived invaders, olives offer further opportunities to understand the genetic basis of invasion, and we propose that future research examines the history of introduction and admixture, the genetic basis of adaptability and the role of biotic interactions during invasion. Advances on these questions will ultimately improve predictions on the future olive expansion and provide a solid basis for better management of invasive populations.
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Affiliation(s)
- Guillaume Besnard
- CNRS, UPS, ENFA, Laboratoire Evolution & Diversité Biologique, UMR 5174, 31062 Toulouse 4, France
| | - Peter Cuneo
- The Australian PlantBank, Royal Botanic Gardens and Domain Trust, The Australian Botanic Garden, Mount Annan, NSW 2567, Australia
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Pasqualone A, Montemurro C, di Rienzo V, Summo C, Paradiso VM, Caponio F. Evolution and perspectives of cultivar identification and traceability from tree to oil and table olives by means of DNA markers. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:3642-3657. [PMID: 26991131 DOI: 10.1002/jsfa.7711] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 02/21/2016] [Accepted: 03/08/2016] [Indexed: 06/05/2023]
Abstract
In recent years, an increasing number of typicality marks has been awarded to high-quality olive oils produced from local cultivars. In this case, quality control requires effective varietal checks of the starting materials. Moreover, accurate cultivar identification is essential in vegetative-propagated plants distributed by nurseries and is a pre-requisite to register new cultivars. Food genomics provides many tools for cultivar identification and traceability from tree to oil and table olives. The results of the application of different classes of DNA markers to olive with the purpose of checking cultivar identity and variability of plant material are extensively discussed in this review, with special regard to repeatability issues and polymorphism degree. The characterization of olive germplasm from all countries of the Mediterranean basin and from less studied geographical areas is described and innovative high-throughput molecular tools to manage reference collections are reviewed. Then the transferability of DNA markers to processed products - virgin olive oils and table olives - is overviewed to point out strengths and weaknesses, with special regard to (i) the influence of processing steps and storage time on the quantity and quality of residual DNA, (ii) recent advances to overcome the bottleneck of DNA extraction from processed products, (iii) factors affecting whole comparability of DNA profiles between fresh plant materials and end-products, (iv) drawbacks in the analysis of multi-cultivar versus single-cultivar end-products and (v) the potential of quantitative polymerase chain reaction (PCR)-based techniques. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Antonella Pasqualone
- Department of Soil, Plant, and Food Sciences, University of Bari 'Aldo Moro', Via Amendola 165/A, I-70126, Bari, Italy
| | - Cinzia Montemurro
- Department of Soil, Plant, and Food Sciences, University of Bari 'Aldo Moro', Via Amendola 165/A, I-70126, Bari, Italy
| | - Valentina di Rienzo
- Department of Soil, Plant, and Food Sciences, University of Bari 'Aldo Moro', Via Amendola 165/A, I-70126, Bari, Italy
| | - Carmine Summo
- Department of Soil, Plant, and Food Sciences, University of Bari 'Aldo Moro', Via Amendola 165/A, I-70126, Bari, Italy
| | - Vito Michele Paradiso
- Department of Soil, Plant, and Food Sciences, University of Bari 'Aldo Moro', Via Amendola 165/A, I-70126, Bari, Italy
| | - Francesco Caponio
- Department of Soil, Plant, and Food Sciences, University of Bari 'Aldo Moro', Via Amendola 165/A, I-70126, Bari, Italy
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20
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Díez CM, Gaut BS. The jury may be out, but it is important that it deliberates: a response to Besnard and Rubio de Casas about olive domestication. THE NEW PHYTOLOGIST 2016; 209:471-3. [PMID: 26599353 DOI: 10.1111/nph.13780] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Affiliation(s)
- Concepción M Díez
- Departamento de Agronomía, Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario ceiA3, Edificio C4, Campus de Rabanales, 14014, Córdoba, Spain
| | - Brandon S Gaut
- Department of Ecology and Evolutionary Biology, University of California Irvine, Irvine, CA, 92697, USA
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