PJB-2010-393
GENETIC DIVERSITY IN SOME TUNISIAN BARLEY LANDRACES BASED ON RAPD MARKERS
RAOUDHA ABDELLAOUI1*, KARIM KADRI2, M’BAREK BEN NACEUR3 AND LEÏLA BETTAIB BEN KAAB4
Abstract
The genetic diversity analysis of 15 barley landraces was carried out using RAPD markers. These landraces were collected from various bioclimatic Tunisian zones. The amplification products varied from 4 to 11 bands ranging between 250 pb and 3000 pb. On 698 fragments counted, 578 are polymorphic showing a high level of polymorphism (82.8%). The relationship between the studied landraces was evaluated according to (UPGMA) method that classified barley landraces in 4 homogeneous groups. Among which, the group D included the majority of the landraces with the introduced variety ‘Martin’. The genetic distance between these landraces is reduced, may be because of the presence of a common ancestor which led to a narrow genetic diversity.
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