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The hemoglobins of Artemia salina. V. Genetic variation in hemoglobin 1, hemoglobin 2, and hemoglobin 3
Authors:Gery Sterling  Sarane T. Bowen
Affiliation:(1) Department of Biology, San Francisco State University, 1600 Holloway, 94132 San Francisco, California
Abstract:
Electrophoretic mobilities of three hemoglobins (Hb1, Hb2, and Hb3) were studied in 15 populations of brine shrimps. Genetic segregation data support the model that Hb2 contains n agr-polypeptides and n beta-polypeptides; Hb1 contains 2n agr-polypeptides. Hb3 contains neither agr- nor beta-polypeptides. There is no evidence of linkage of agr and beta loci with each other or with the locus (or loci) which governs Hb3 or with the nonhomologous portion of the sex chromosomes. Hemoglobins of different populations may be hybridized in vitro by incubation at high temperature. Reversible dissociation to subunits which contain only one (agr or beta) polypeptide occurs at 40 C (for Hb1) and at 50 C (for Hb2).Supported by Grant HD-11445 from the National Institutes of Health.
Keywords:hemoglobin  polyacrylamide electrophoresis  crustacean  Artemia
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