Genetic relationships among species of hagfish revealed by protein electrophoresis |
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Authors: | H. Jansson,§ ,P.-I. Wyö ni,B. Fernholm,&dagger ,M. Bredwad,&Dagger ,A. Mierzykowska,&Dagger H. Tegelströ m |
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Affiliation: | Department of Genetics, Uppsala University, Box 7003, S-750 07 Uppsala;Department of Vertebrate Zoology, Swedish Museum of Natural History, Box 50007, S-104 05 Stockholm;Department of Zoology, Stockholm University, S-106 91 Stockholm, Sweden |
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Abstract: | Hagfish species of the genera Myxine, Eptatretus and Paramyxine were analysed for genetic variation by allozyme electrophoresis and isoelectric focusing of general proteins. Large genetic differences were observed between samples of supposed conspecifics of Myxine circifrons from off the Californian coast, and also within one sample of Paramyxine sp. from Sagami Bay, Japan. The results are convincing evidence of the existence of additional sympatric species in these two areas. In general, the highest genetic identities were found between species within the subfamilies Myxininae and Eptatretinae. Within Eptatretinae, the Japanese species Eptatretus burgeri was genetically more similar to Japanese species of Paramyxine than to American species of Eptatretus . Thus, our data indicate that the generic status of Paramyxine should be reconsidered. |
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Keywords: | allozymes isoelectric focusing Myxine Eptatretus, Paramyxine |
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