**2.3 Statistical analysis**

Through the interpretation of gels, molecular data were tabulated as presence (1) or absence (0) of DNA fragments by primers for each genotype. Genetic similarities among genotypes were determined based on the Jaccard (1908) coefficients. A dendrogram was then constructed using the unweighted pair-group method of the arithmetic average (UPGMA) based on the similarity matrix. The cluster analyses were conducted using the computer program Gene (Cruz, 2006).
