Abstract
Electrophoretic polymorphism of glucosephosphate isomerase (Gpi*) and phosphoglucomutase (Pgm *) polymorphisms were assayed in the bipolardisjunct species pairsPriapulus caudatus/P. tuberculatospinosus andPriapulopsis bicaudatus/Priapulopsis australis (phylum Priapulida). Numbers of genotypes fromGpi * alleles and 14Pgm * alleles generally did not show deviations from Hardy-Weinberg expectations in composite populations sampled over geographic distances up to 500 km linearly measured. This genetic pattern suggests efficient population cohesion in a phylum where pelagic larvae have not been observed. Sibling species in generaPriapulus orPriapulopsis from northern and southern polar seas did not share identical allozyme alleles.
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Schreiber, A., Eisinger, M. & Storch, V. Allozymes characterize sibling species of bipolar Priapulida (Priapulus, Priapulopsis). Polar Biol 16, 521–526 (1996). https://doi.org/10.1007/BF02329072
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DOI: https://doi.org/10.1007/BF02329072