Tunisian Table Olive Oil Traceability and Quality Using SNP Genotyping and Bioinformatics Tools

Area of Science:

• Agricultural Science
• Molecular Biology
• Food Science

Background:

• Table olive oil authentication and traceability are crucial for quality assurance.
• Understanding genotype-phenotype relationships enhances olive cultivar characterization.

Purpose of the Study:

• To analyze Tunisian table olive cultivars using SNP markers for authentication and traceability.
• To investigate genotype-phenotype links between SNPs and olive oil quality parameters.

Main Methods:

• Analysis of 11 Tunisian table olive cultivars using seven SNP molecular markers.
• Assessment of genotype-phenotype links with quantitative and qualitative parameters.
• Application of computational biology tools: bivariate analysis, multinomial logistic regression, and Bayesian networks modeling.

Main Results:

• The PAL70 SNP marker showed a negative correlation with phenol rate and oxidative stability.
• The SAD.1 marker was significantly associated with linolenic unsaturated fatty acids (C18:3).
• SAD.1 marker was positively correlated with saturated stearic acid (C18:0).

Conclusions:

• This research enhances the understanding and characterization of Tunisian table olive quality.
• The findings provide valuable data for table olive traceability and breeding programs.
• SNP marker analysis offers a robust method for olive oil authentication.