Cultivated Olive Diversification at Local and Regional Scales: Evidence From the Genetic Characterization of French Genetic Resources
Molecular characterization of crop genetic resources is a powerful approach to elucidate the origin of varieties and facilitate local cultivar management. Here we aimed to decipher the origin and diversification of French local olive germplasm. The 113 olive accessions of the ex situ collection of P...
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Language: | English |
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Frontiers Media S.A.
2019-12-01
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Series: | Frontiers in Plant Science |
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Online Access: | https://www.frontiersin.org/article/10.3389/fpls.2019.01593/full |
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author | Bouchaib Khadari Bouchaib Khadari Ahmed El Bakkali Laila Essalouh Laila Essalouh Christine Tollon Christian Pinatel Guillaume Besnard |
author_facet | Bouchaib Khadari Bouchaib Khadari Ahmed El Bakkali Laila Essalouh Laila Essalouh Christine Tollon Christian Pinatel Guillaume Besnard |
author_sort | Bouchaib Khadari |
collection | DOAJ |
description | Molecular characterization of crop genetic resources is a powerful approach to elucidate the origin of varieties and facilitate local cultivar management. Here we aimed to decipher the origin and diversification of French local olive germplasm. The 113 olive accessions of the ex situ collection of Porquerolles were characterized with 20 nuclear microsatellites plus their plastid haplotype. We then compared this collection to Mediterranean olive varieties from the Worldwide Olive Germplasm Bank of Marrakech, Morocco. High genetic diversity was observed within local French varieties, indicating a high admixture level, with an almost equal contribution from the three main Mediterranean gene pools. Nearly identical and closely related genotypes were observed among French and Italian/Spanish varieties. A high number of parent–offspring relationships were also detected among French varieties and between French and two Italian varieties (‘Frantoio’ and ‘Moraiolo’) and the Spanish variety (‘Gordal Sevillana’). Our investigations indicated that French olive germplasm resulted from the diffusion of material from multiple origins followed by diversification based on parentage relationships between varieties. We strongly suggest that farmers have been actively selecting olives based on local French varieties. French olive agroecosystems more affected by unexpected frosts than southernmost regions could also be seen as incubators and as a bridge between Italy and Spain that has enhanced varietal olive diversification. |
first_indexed | 2024-12-21T12:21:08Z |
format | Article |
id | doaj.art-0d3d0d96e07c494b808e2420f49c3555 |
institution | Directory Open Access Journal |
issn | 1664-462X |
language | English |
last_indexed | 2024-12-21T12:21:08Z |
publishDate | 2019-12-01 |
publisher | Frontiers Media S.A. |
record_format | Article |
series | Frontiers in Plant Science |
spelling | doaj.art-0d3d0d96e07c494b808e2420f49c35552022-12-21T19:04:18ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2019-12-011010.3389/fpls.2019.01593489664Cultivated Olive Diversification at Local and Regional Scales: Evidence From the Genetic Characterization of French Genetic ResourcesBouchaib Khadari0Bouchaib Khadari1Ahmed El Bakkali2Laila Essalouh3Laila Essalouh4Christine Tollon5Christian Pinatel6Guillaume Besnard7AGAP, University Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, FranceConservatoire Botanique National Méditerranéen de Porquerolles (CBNMed), UMR AGAP, Montpellier, FranceINRA, UR Amélioration des Plantes et Conservation des Ressources Phytogénétiques, Meknès, MoroccoAGAP, University Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, FranceÉtablissement Public Local d’Enseignement et de Formation Professionnelle Agricoles Nîmes-Rodilhan-CFPPA du Gard, Rodilhan, FranceAGAP, University Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, FranceCentre Technique de l’Olivier, Maison des Agriculteurs, Aix-en-Provence, FranceCNRS-IRD-UPS EDB, UMR 5174, Université Paul Sabatier, Toulouse, FranceMolecular characterization of crop genetic resources is a powerful approach to elucidate the origin of varieties and facilitate local cultivar management. Here we aimed to decipher the origin and diversification of French local olive germplasm. The 113 olive accessions of the ex situ collection of Porquerolles were characterized with 20 nuclear microsatellites plus their plastid haplotype. We then compared this collection to Mediterranean olive varieties from the Worldwide Olive Germplasm Bank of Marrakech, Morocco. High genetic diversity was observed within local French varieties, indicating a high admixture level, with an almost equal contribution from the three main Mediterranean gene pools. Nearly identical and closely related genotypes were observed among French and Italian/Spanish varieties. A high number of parent–offspring relationships were also detected among French varieties and between French and two Italian varieties (‘Frantoio’ and ‘Moraiolo’) and the Spanish variety (‘Gordal Sevillana’). Our investigations indicated that French olive germplasm resulted from the diffusion of material from multiple origins followed by diversification based on parentage relationships between varieties. We strongly suggest that farmers have been actively selecting olives based on local French varieties. French olive agroecosystems more affected by unexpected frosts than southernmost regions could also be seen as incubators and as a bridge between Italy and Spain that has enhanced varietal olive diversification.https://www.frontiersin.org/article/10.3389/fpls.2019.01593/fullOlea europaea L.parentage analysissimple sequence repeatgenetic structureex situ collection of Porquerollesgenetic resource management |
spellingShingle | Bouchaib Khadari Bouchaib Khadari Ahmed El Bakkali Laila Essalouh Laila Essalouh Christine Tollon Christian Pinatel Guillaume Besnard Cultivated Olive Diversification at Local and Regional Scales: Evidence From the Genetic Characterization of French Genetic Resources Frontiers in Plant Science Olea europaea L. parentage analysis simple sequence repeat genetic structure ex situ collection of Porquerolles genetic resource management |
title | Cultivated Olive Diversification at Local and Regional Scales: Evidence From the Genetic Characterization of French Genetic Resources |
title_full | Cultivated Olive Diversification at Local and Regional Scales: Evidence From the Genetic Characterization of French Genetic Resources |
title_fullStr | Cultivated Olive Diversification at Local and Regional Scales: Evidence From the Genetic Characterization of French Genetic Resources |
title_full_unstemmed | Cultivated Olive Diversification at Local and Regional Scales: Evidence From the Genetic Characterization of French Genetic Resources |
title_short | Cultivated Olive Diversification at Local and Regional Scales: Evidence From the Genetic Characterization of French Genetic Resources |
title_sort | cultivated olive diversification at local and regional scales evidence from the genetic characterization of french genetic resources |
topic | Olea europaea L. parentage analysis simple sequence repeat genetic structure ex situ collection of Porquerolles genetic resource management |
url | https://www.frontiersin.org/article/10.3389/fpls.2019.01593/full |
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