AI Article Synopsis
- Tunisia has unique seed-propagated apricot varieties found in its oasis agroecosystems, which are important for genetic diversity.
- A study genotyped 33 apricot accessions from six regions, revealing 111 alleles and identifying four key genetic groupings related to geographic origin.
- The findings emphasize the high genetic diversity and low differentiation among Tunisian apricots, which is vital for breeding programs that adapt to arid climates.
Article Abstract
Tunisia is characterized by the presence of specific seed-propagated apricot (Prunus armeniaca L.) material which is found in the oasis agroecosystems. In order to highlight the genetic diversity, population structure, and demographic history of this germplasm, 33 apricot accessions collected from six different oasis regions in southwestern Tunisia were genotyped using 24 microsatellite markers. A total number of 111 alleles was detected with an average of 4.62 alleles per locus. Bayesian model-based clustering analysis indicated four subdivisions within the collection sampled that corresponded mainly to the geographic origin of the material. The analysis of the 33 accessions using chloroplast markers allowed the identification of 32 haplotypes. Overall, the present study highlighted the high Tunisian apricot's diversity in the traditional oasis agroecosystems with low genetic differentiation. Understanding the structure of seed-propagated apricot collection is crucial for managing collections in regard to adaptive traits for Arid and Saharan climates as well as for identifying interesting genotypes that can be integrated into international coordinated actions of breeding programs.
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| http://dx.doi.org/10.1007/s10709-021-00127-5 | DOI Listing |
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