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Your search keyword '"Chabrillange, Nathalie"' showing total 14 results
Start Over Author "Chabrillange, Nathalie" Publication Year Range Last 10 years
14 results on '"Chabrillange, Nathalie"'

5. Male diversity matters: genetic structuring of insular male date palm (Phoenix dactylifera L.) revealed valuable breeding and conservation resources.

Author

Bourguiba, Hedia, Hachef, Afifa, Saffar, Wejdene, Chabrillange, Nathalie, Aberlenc, Frédérique, Cherif, Emira, and Zehdi-Azouzi, Salwa

Subjects
DATE palm, GENETIC variation, POLLINATORS, MALES, CLUSTER analysis (Statistics), CULTIVARS, MICROSATELLITE repeats
Abstract

Most male date palms available for pollinating different female cultivars have mainly originated from seed propagation resulting in many different local males that represent a source of genetic diversity. Favourable fruit production is related to the quality of pollen and its compatibility with a certain female variety. Therefore, the genetic characterisation of the male progenitors should be the first step to establish a selection programme to produce superior males through different procedures. In this study, the genetic diversity and population structure of 72 male date palm accessions were investigated using 15 microsatellite loci. The highest mean number of alleles per locus was obtained for Tozeur group. Bayesian model-based clustering analysis indicated the presence of two differentiated endemic male date palm genetic clusters, continental and insular, with the presence of introduced accessions originating from the Middle East. The diversity analysis in the insular region of Tunisia, which had never been performed before, revealed that this germplasm enclosed valuable endemic resources supporting the hypothesis of the presence of wild material. These findings are crucial for identifying interesting genotypes that can be integrated into international coordinated actions of Phoenix dactylifera L. breeding programmes and the protection and conservation of valuable resources. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Male diversity matters: genetic structuring of insular male date palm (Phoenix dactyliferaL.) revealed valuable breeding and conservation resources

Author

Bourguiba, Hedia, Hachef, Afifa, Saffar, Wejdene, Chabrillange, Nathalie, Aberlenc, Frédérique, Cherif, Emira, and Zehdi-Azouzi, Salwa

Abstract

ABSTRACTMost male date palms available for pollinating different female cultivars have mainly originated from seed propagation resulting in many different local males that represent a source of genetic diversity. Favourable fruit production is related to the quality of pollen and its compatibility with a certain female variety. Therefore, the genetic characterisation of the male progenitors should be the first step to establish a selection programme to produce superior males through different procedures. In this study, the genetic diversity and population structure of 72 male date palm accessions were investigated using 15 microsatellite loci. The highest mean number of alleles per locus was obtained for Tozeur group. Bayesian model-based clustering analysis indicated the presence of two differentiated endemic male date palm genetic clusters, continental and insular, with the presence of introduced accessions originating from the Middle East. The diversity analysis in the insular region of Tunisia, which had never been performed before, revealed that this germplasm enclosed valuable endemic resources supporting the hypothesis of the presence of wild material. These findings are crucial for identifying interesting genotypes that can be integrated into international coordinated actions of Phoenix dactyliferaL. breeding programmes and the protection and conservation of valuable resources.

Published
2024
Full Text
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8. Genetic structure of the date palm ( Phoenix dactylifera ) in the Old World reveals a strong differentiation between eastern and western populations

Author

Zehdi-Azouzi, Salwa, Cherif, Emira, Moussouni, Souhila, Gros-Balthazard, Muriel, Naqvi, Summar Abbas, Ludeña, Bertha, Castillo, Karina, Chabrillange, Nathalie, Bouguedoura, Nadia, Bennaceur, Malika, Si-Dehbi, Farida, Abdoulkader, Sabira, Daher, Abdourahman, Terral, Jean-Frederic, Santoni, Sylvain, Ballardini, Marco, Mercuri, Antonio, Salah, Mohamed Ben, Kadri, Karim, Othmani, Ahmed, Littardi, Claudio, Salhi-Hannachi, Amel, Pintaud, Jean-Christophe, and Aberlenc-Bertoss, Frédérique

Published
2015

10. Origins and insights into the historic Judean date palm based on genetic analysis of germinated ancient seeds and morphometric studies

Author

Sallon, Sarah, Cherif, Emira, Chabrillange, Nathalie, Solowey, Elaine, Gros-Balthazard, Muriel, Ivorra, Sarah, Terral, Jean-Frédéric, Egli, Markus, Aberlenc, Frédérique, University of Zurich, and Sallon, Sarah

Subjects
1000 Multidisciplinary, 10122 Institute of Geography, food and beverages, 910 Geography & travel
Abstract

Germination of 2000-year-old seeds of Phoenix dactylifera from Judean desert archaeological sites provides a unique opportunity to study the Judean date palm, described in antiquity for the quality, size, and medicinal properties of its fruit, but lost for centuries. Microsatellite genotyping of germinated seeds indicates that exchanges of genetic material occurred between the Middle East (eastern) and North Africa (western) date palm gene pools, with older seeds exhibiting a more eastern nuclear genome on a gradient from east to west of genetic contributions. Ancient seeds were significantly longer and wider than modern varieties, supporting historical records of the large size of the Judean date. These findings, in accord with the region's location between east and west date palm gene pools, suggest that sophisticated agricultural practices may have contributed to the Judean date's historical reputation. Given its exceptional storage potentialities, the date palm is a remarkable model for seed longevity research.

Published
2020

13. Origins and insights into the historic Judean date palm based on genetic analysis of germinated ancient seeds and morphometric studies

Author

Sallon, Sarah; https://orcid.org/0000-0003-1738-1068, Cherif, Emira; https://orcid.org/0000-0001-9365-7500, Chabrillange, Nathalie, Solowey, Elaine; https://orcid.org/0000-0002-8942-9318, Gros-Balthazard, Muriel; https://orcid.org/0000-0002-2587-3946, Ivorra, Sarah, Terral, Jean-Frédéric; https://orcid.org/0000-0003-1921-2161, Egli, Markus, Aberlenc, Frédérique; https://orcid.org/0000-0003-1866-6807, Sallon, Sarah; https://orcid.org/0000-0003-1738-1068, Cherif, Emira; https://orcid.org/0000-0001-9365-7500, Chabrillange, Nathalie, Solowey, Elaine; https://orcid.org/0000-0002-8942-9318, Gros-Balthazard, Muriel; https://orcid.org/0000-0002-2587-3946, Ivorra, Sarah, Terral, Jean-Frédéric; https://orcid.org/0000-0003-1921-2161, Egli, Markus, and Aberlenc, Frédérique; https://orcid.org/0000-0003-1866-6807

Abstract

Germination of 2000-year-old seeds of Phoenix dactylifera from Judean desert archaeological sites provides a unique opportunity to study the Judean date palm, described in antiquity for the quality, size, and medicinal properties of its fruit, but lost for centuries. Microsatellite genotyping of germinated seeds indicates that exchanges of genetic material occurred between the Middle East (eastern) and North Africa (western) date palm gene pools, with older seeds exhibiting a more eastern nuclear genome on a gradient from east to west of genetic contributions. Ancient seeds were significantly longer and wider than modern varieties, supporting historical records of the large size of the Judean date. These findings, in accord with the region’s location between east and west date palm gene pools, suggest that sophisticated agricultural practices may have contributed to the Judean date’s historical reputation. Given its exceptional storage potentialities, the date palm is a remarkable model for seed longevity research.

Published
2020

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