Re-Interpretation of Genetic Variation in Simocephalus (Cladocera, Daphniidae)

AUTOR(ES)

Hann, B. J.

RESUMO

Populations of several co-existing species of Simocephalus were examined electrophoretically at 11 enzyme loci. The prevailing pattern was one of extensive allelic substitution between species and low levels of polymorphism (0-10%) within species. Genetic identity values between species were very low (10-50%). These results concur with those for other cyclic parthenogens, but are in sharp contrast to previous interpretation of data derived from populations of Simocephalus from the same sites.

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