title: [Esterase and amylase: two biochemical markers in the polytypic Idotea chelipes (crustacea, isopoda valvifera)].
abstract: In polytypic Idotea chelipes species, the slow esterase constitutes a subspecific biochemical marker which discriminates, without ambiguity, each of three subspecies. Amylase 2 is a diagnostic locus which separates I. chelipes bocqueti from the two other subspecies where each is characterized by particular frequencies of the most frequent allele. The analysed electrophoretic zymogram and the intersubspecific cross-breeding results attribute a monomeric structure for this enzyme which depends on diallelic gene.
authors.affiliation: Laboratoire de Biologie Animale, Faculté des Sciences, Campus Universitaire, Tunis.
authors.forename: F
authors.initials: F
authors.lastname: Charfi-Cheikhrouha
mesh_terms: D000483:Alleles; D000681:Amylases / Q000032:analysis*; D000818:Animals; D015415:Biomarkers / Q000032:analysis; D003445:Crustacea / Q000145:classification / Q000201:enzymology* / Q000235:genetics; D004591:Electrophoresis, Polyacrylamide Gel; D004950:Esterases / Q000032:analysis*; D005260:Female; D005787:Gene Frequency; D007178:Inbreeding; D008297:Male; D011110:Polymorphism, Genetic; D013045:Species Specificity
chemical_list: D015415:Biomarkers; D004950:Esterases; D000681:Amylases