TY - JOUR AU - Djabeur, Abderrezak AU - Kaid-Harche, Meriem AU - Khelifi, Douadi PY - 2008 TI - Proteins polymorphism of some populations of Lygeum spartum L. in Algeria JF - American Journal of Agricultural and Biological Sciences VL - 3 IS - 1 DO - 10.3844/ajabssp.2008.337.341 UR - https://thescipub.com/abstract/ajabssp.2008.337.341 AB - Lygeum spartum L. represent a natural barrier in the Algerian high plateaus against the advances of sand and turning into a desert. This species has two levels of ploïdy (diploïd cytotype 2n = 16 and polyploidy cytotype 2n = 40). Protein profile of several populations of this species have inter and intra specific variability. The polymorphic bands observed in the intermediate and slow zone have a molecular weight (MW) of 25.6, 30.1, 31.2, 37.3, 40.4, 69.3 and 82.7 kDa. This polymorphism exists not only between the polyploids samples (well 1 to 7) and diploids (well 8 and 9), but also inside the polyploids populations. These results showed that modifications of the electrophoretic profile of Lygeum spartum were concomitant with climatic and geographical external factors.