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The objective of this study was to investigate the differentiation
level among 35 populations in which 20 are locals originating from the
Tunisian South and 15 introduced from Italy, Australy, France and Morocco
with morphologicals traits and mineral composition. The tenors of sodium,
potassium and phosphorus were determined. Diversity according to the mineral
composition and morphologicals characters inter populations were analyzed
by two statistical procedures, Hierarchical classification and Correspondence
Factorial Analysis. Its conclude that the local`s populations were adapted
at worst conditions in South Tunisian.
This species study was to investigate the differentiation
level among 26 populations wich 12 are locals originating from the Tunisian
South and 14 introduced from Italy, Austerely, France and Morocco with
two SSR markers. These highly polymorphic and co dominant markers, together
with recent population genetic statistic extended to autotetraploids,
offer tools to analyse genetic diversity in alfalfa. The number of alleles
per locus varied between 8 and 9. The genetic similarity between these
various populations is estimated by the index of Rogers and Tanimoto.
Genetic diversity is analysed by two statistical procedures: Hierarchical
classification and Correspondence Factorial Analysis (CFA). Four large
groups were obtained.
