%0 Journal Article %T Inter- and intra-population genetic variability of introduced silkworm (Bombyx mori L.) strains raised in Bulgaria %A Teodora Staykova %J Journal of BioScience and Biotechnology %D 2013 %I Plovdiv University Press %X The genetic variability of four populations belonging to two introduced silkworm strains (Bombyx mori L.) of various origins has been studied using isoenzymic analysis of six enzyme systems. Nonspecific esterases, phosphoglucomutase, malate dehydrogenase, acid phosphatase, alkaline phosphatase and hexokinase from different tissue of larvae 5th instar have been analysed using PAGE. Polymorphism in six from a total of nine loci has been found. Inter- and intra-population differences have been ascertained expressed in different allele composition of the gene pool and different frequencies of alleles. A higher degree of inter-population variability has been reported on the acid phosphatase and a lower one ¨C on the phosphoglucomutase. %K Bombyx mori L. %K genetic variability %K isoenzymes %U http://www.jbb.uni-plovdiv.bg/documents/27807/59543/jbb_2013-2(1)-pages_73-77.pdf