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  • Title: Endemic insular and coastal Tunisian date palm genetic diversity.
    Author: Zehdi-Azouzi S, Cherif E, Guenni K, Abdelkrim AB, Bermil A, Rhouma S, Salah MB, Santoni S, Pintaud JC, Aberlenc-Bertossi F, Hannachi AS.
    Journal: Genetica; 2016 Apr; 144(2):181-90. PubMed ID: 26895027.
    Abstract:
    The breeding of crop species relies on the valorisation of ancestral or wild varieties to enrich the cultivated germplasm. The Tunisian date palm genetic patrimony is being threatened by diversity loss and global climate change. We have conducted a genetic study to evaluate the potential of spontaneous coastal resources to improve the currently exploited Tunisian date palm genetic pool. Eighteen microsatellite loci of Phoenix dactylifera L. were used to compare the genetic diversity of coastal accessions from Kerkennah, Djerba, Gabès and continental date palm accessions from Tozeur. A collection of 105 date palms from the four regions was analysed. This study has provided us with an extensive understanding of the local genetic diversity and its distribution. The coastal date palm genotypes exhibit a high and specific genetic diversity. These genotypes are certainly an untapped reservoir of agronomically important genes to improve cultivated germplasm in continental date palm.
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