Parasitology Research

, Volume 86, Issue 5, pp 419–421

Allozyme analysis of two polymorphic enzymes in a natural population of Lecithochirium musculus

Authors

  • R. Vilas
    • Laboratorio de Parasitología, Facultad de Farmacia, Av Vigo s/n, Campus Sur, 15706 Santiago de Compostela, Spain e-mail: Paniesp@usc.es Tel.: +34-981-563100 Ext 15004; Fax: +34-981-593316
  • E. Paniagua Crespo
    • Laboratorio de Parasitología, Facultad de Farmacia, Av Vigo s/n, Campus Sur, 15706 Santiago de Compostela, Spain e-mail: Paniesp@usc.es Tel.: +34-981-563100 Ext 15004; Fax: +34-981-593316
  • D. G. Sanlés
    • Laboratorio de Parasitología, Facultad de Farmacia, Av Vigo s/n, Campus Sur, 15706 Santiago de Compostela, Spain e-mail: Paniesp@usc.es Tel.: +34-981-563100 Ext 15004; Fax: +34-981-593316
  • M. L. Sanmartín
    • Laboratorio de Parasitología, Facultad de Farmacia, Av Vigo s/n, Campus Sur, 15706 Santiago de Compostela, Spain e-mail: Paniesp@usc.es Tel.: +34-981-563100 Ext 15004; Fax: +34-981-593316
ORIGINAL PAPER

DOI: 10.1007/s004360050687

Cite this article as:
Vilas, R., Paniagua Crespo, E., Sanlés, D. et al. Parasitol Res (2000) 86: 419. doi:10.1007/s004360050687

Abstract

Genetic variability among 112 individuals of Lecithochirium musculus from Anguilla anguilla from northwestern Spain was examined using allozyme analysis. Starch-gel electrophoresis was used to investigate the genetic variation in two polymorphic enzymes, glucose phosphate isomerase (GPI) and phosphoglucomutase (PGM). The banding patterns obtained for GPI were consistent with a dimeric structure for this enzyme and with single-locus control. The inferred genotype frequencies did not significantly differ as compared with those predicted by the Hardy–Weinberg equation. Two PGM loci were detected (Pgm-1 and Pgm-2). Pgm-1 was polymorphic and showed a striking departure from Hardy-Weinberg predictions (total absence of heterozygotes for alleles in high frequencies), raising the possibility of the existence of two reproductively isolated populations. However, other reasons for this observation are discussed.

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© Springer-Verlag Berlin Heidelberg 2000