The genetic diversity of 39 individuals and genetic structure of the population of Shanxi walnut(Juglans regia L.) were analyzed by inter-simple sequence repeat markers(ISSR).Eight primers were selected from 13 pre-screened primers for PCR.With them,48 polymorphic loci were detected with the percentage of polymorphic bands(PPB) as 87.27%.The ISSR-derived genetic similarity(ISSR-GS) ranged from 0.473~0.836 with a mean of 0.679.The Shannon-Weaver index of genetic diversity ranged from 1.483 to 1.960 and the S...