title: [Studies on allozyme of Gammatricula].
abstract: OBJECTIVE
  To furnish molecular genetic evidences for taxonomy of Gammatricula.
  
  
  METHODS
  A total of 24 enzymes of 6 populations of Gammatricula songi and 1 population of Gammatricula chinensis collected from Kaihua County and Chunan County of Zhejiang Province were studied using horizontal starch gel electrophoresis.
  
  
  RESULTS
  29 loci were found. The percentages of polymorphic loci of G. songi populations were 6.9%-13.8%. All loci of G. chinensis were monomorphic. The Nei's distance among G. songi populations did not exceed 0.12. The Nei's distance between G. songi and G. chinensis was 0.73.
  
  
  CONCLUSIONS
  The allozyme variations of inter-G. songi are limited, but the allozyme variation between G. songi and G. chinensis is significant.
authors.affiliation: Institute of Parasitic Diseases, Zhejiang Academy of Medical Sciences, Hangzhou 310013.
authors.forename: X
authors.initials: X
authors.lastname: Zeng
authors.forename: C
authors.initials: C
authors.lastname: Chen
authors.forename: J
authors.initials: J
authors.lastname: Ding
authors.forename: G M
authors.initials: GM
authors.lastname: Davis
mesh_terms: D000483:Alleles; D000818:Animals; D004199:Disease Vectors; D004592:Electrophoresis, Starch Gel; D014644:Genetic Variation; D011110:Polymorphism, Genetic; D012908:Snails / Q000145:classification* / Q000201:enzymology* / Q000235:genetics