Allozyme variation in the river sardine, Mesobola brevianalis (Pisces, Cyprinidae)

Abstract

A population of Mesobola brevianalis was examined for genetic variation using horizontal starch gel electrophoresis. Gene products of 27 protein coding loci were consistently resolved and revealed polymorphism at five loci. Observed genotype frequencies at three loci, CK-1, HK-1 and PGDH-1, deviated significantly from Hardy-Weinberg expectations. Genetic variability estimates were congruent with those obtained for fish in general. Possible reasons for the low variability values obtained are discussed in relation to natural and anthropogenic influences in the river system. za Received 10 June 1998; accepted in revised form 2 February 1999.

Authors

Categories