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Variation in karyotypes of Dugesia japonica japonica (Turbellaria) from Ôsaka Prefecture, Central Japan

  • Systematics and Cytology
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Abstract

An analysis of the karyotypes of Dugesia japonica japonica Ichikawa et Kawakatsu, 1964, from 30 localities of seven river systems in Ôsaka Prefecture, Central Japan, revealed a total of 26 karyotypes of which 12 are new-found varieties. More than two karyotypes were found in many localities. The mixoaneuploidic triploid karyotype showed the widest distribution (21 localities), orthoploidic diploid karyotype and orthoploidic mixoploid of diploid and triploid karyotype were next (13 localities, respectively), and other karyotypes (triploidic aneuploid, orthoploidic triploid and mixoploid of triploid & tetraploid) were also found. Some correlation of karyotype with elevation was also detected.

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References

  • Kawakatsu, M., 1977. Ecology and distribution of freshwater planarians. The Heredity (Iden), Tôkyô 31 (10): 13–24. (In Japanese).

    Google Scholar 

  • Kawakatsu, M., I. Oki, S. Tamura & H. Sugino, 1976. Studies on the morphology, karyology and taxonomy of the Japanese freshwater planarian Dugesia japonica Ichikawa et Kawakatsu, with a description of a new subspecies, Dugesia japonica ryukyuensis subspec. nov. Bull. Fuji Women's Coll. 14 (sser. II): 81–126.

    Google Scholar 

  • Kawakatsu, M., I. Oki, S. Tamura, T. Yamayoshi, K.-Y. Lue & M. Hagiya, 1979. Additional report on freshwater planarians from Taiwan. Bull. Fuji Women's Coll. 17 (ser. II): 59–91.

    Google Scholar 

  • Kawakatsu, M., S. Tamura & K.-Y. Lue, 1984. Preprint of papers given at the Fourth International Symposium on the Turbellaria. Occ. Publ., Biol. Lab. Fuji Women's Coll., Sapporo (Hokkaidô), Jap. 12: 1–20.

    Google Scholar 

  • Oki, I. & M. Kawakatsu, 1983. Recent advancement of the turbellariology: Part 2. The Heredity (Iden), Tôkyô 37 (2): 40–49 (In Japanese).

    Google Scholar 

  • Oki, I., S. Tamura, T. Yamayoshi & M. Kawakatsu, 1981. Karyological and taxonomic studies of Dugesia japonica Ichikawa et Kawakatsu in the Far East. Hydrobiologia 84: 53–68.

    Google Scholar 

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Authors and Affiliations

  1. Ôsaka Prefectural Institute of Public Health, Nakamichi-1-chôme Higashinari-ku, 537, Ôsaka, Japan

    Sachiko Tamura

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  1. Sachiko Tamura
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Tamura, S. Variation in karyotypes of Dugesia japonica japonica (Turbellaria) from Ôsaka Prefecture, Central Japan. Hydrobiologia 132, 243–249 (1986). https://doi.org/10.1007/BF00046256

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  • DOI: https://doi.org/10.1007/BF00046256

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