Genetica

, Volume 74, Issue 1, pp 73–80

Karyological studies of five species of land snails (Helicoidea: Mollusca)

  • R. Tatewaki
  • J. Kitada
Article

Abstract

The karyotypes of five species of Helicoidea (Japanese land snails) were analyzed by the air-drying method, using embryonic cells. Somatic cells of Satsuma omphalodes and S. japonica had 2n=58. Karyotypes of Acusta despecta sieboldiana (2n=58), Euhadra dixoni and E. amaliae (2n=56) were also analyzed. Chromosomes of these five species are all metacentric or submetacentric. Two species of Euhadra, dixoni and amaliae, have identical karyotypes while karyotypes of S. omphalodes and S. japonica indicate some dissimilarity in medium-sized and small-sized chromosomes. On the basis of karyotypical characters, A. d. sieboldiana was recognized to be closely related to the Satsuma species, which belong to a different family rather than to Euhadra of the same family as Acusta.

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References

  1. Azuma, M., 1982. Colored illustrations of the land snails of Japan (1982). Hoikusha, Osaka.Google Scholar
  2. Babrakzai, N., Miller, B. W., & Ward, G. O., 1974. Cytotaxonomy of some Arizona Oreohelicidae (Gastropoda: Pulmonata). Bull. Am. malacol. Union inc.: 4–7.Google Scholar
  3. Babrakzai, N., Samsam, S. & Miller, B. W., 1980. Cytological relationships of Helminthoglyptidae and Bradybaenidae (Mollusca: Pulmonata). J. Arizona Nevada Acad. Sci. 15: 31.Google Scholar
  4. Burch, B. J., 1968. A tissue culture technique for caryotype analysis of pulmonate land snails. Venus 27: 20–27Google Scholar
  5. Imai, T. H., Crozier, H. R. & Taylor, W. R., 1977. Karyotype evolution in Australian ants. Chromosoma 59: 341–393.Google Scholar
  6. Inaba, A., 1945. Chromosome numbers in some land snails. Jpn. J. Malacol. 14: 97–102.Google Scholar
  7. Inaba, A., 1959. Cytological studies in Molluses. II. A chromosome survey in the stylommatophoric pulmonata. J. Sci. Hiroshima Univ. 18: 1–29.Google Scholar
  8. Inaba, A., 1974. Chromosomes of Molusca. Heredity 28(7): 25–31.Google Scholar
  9. Inaba, A., 1979. Chromosomes and phylogeny of Mollusca (in Japanese). Jpn. Sci. syst. Zool. Circular, No. 52: 1–7.Google Scholar
  10. Kawabe, M., 1947. Notes on the chromosomes of Bradybaena (Ezohelix) gainesi. La Kromosomo 3–4: 133–134.Google Scholar
  11. Kira, T., 1959. Colored illustrations of the shells of Japan, Vol. 1, Hoikusha, Osaka.Google Scholar
  12. Kuroda, T. & Habe, T., 1949. Helicacea. Sanmeisha, Tokyo.Google Scholar
  13. Kuroda, T., 1963. A cataloguc of the non-marine molluscs of Japan, including Okinawa and Ogasawara Island. The Malacological Society of Japan, Tokyo.Google Scholar
  14. Levan, A., Fredga, K. & Sandberg, A. A., 1964. Nomenclature for centrometric position on chromosomes. Hereditas 52: 201–220.Google Scholar
  15. Perrot, M., 1938. Etude de cytologie comparée chez les gastéropodes pulmoneés. Rev. suisse Zool. 45: 487–566.Google Scholar
  16. Prasad, R. & Das, C. C., 1978. Air drying Giemsa technique for gastropod chromosomes. The Veliger 20: 386–387.Google Scholar
  17. Tatewaki, R. & Kitada, J., 1984. Comparative karyotypes of two land snails, Euhadra subnimbosa and Euhadra dixoni (Bradybaenidae, Gastropoda). Proc. Japan Acad. 60: 77–80.Google Scholar

Copyright information

© Dr W. Junk Bublishers 1987

Authors and Affiliations

  • R. Tatewaki
    • 1
  • J. Kitada
    • 1
  1. 1.Department of BiologyShimane Medical UniversityIzumo, ShimaneJapan

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