Genetica

, Volume 46, Issue 3, pp 327–334 | Cite as

A study of polyploidy in races of Japanese weevils (Coleoptera: Curculionidae)

  • Y. Takenouchi
Article

The chromosomes of two Japanese weevils, Blosyrus japonicus Sharp and Callirhopalus (= Pseudocneorhinus) obesus Roelofs, were studied. The former consists of four races: one 2n and bisexual (= Blosyrus falcatus Faust) and three parthenogenetic-4n, 5n, and 6n. In general the races are allopatric. The latter species has two races: 4n and 6n, again with distinct geographical distributions.

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References

  1. Mikulska, I. (1953). The chromosomes of the parthenogenetic and thelytokian weevil Eusomus ovulum Germ. (Curculionidae, Coleoptera). Bull. Acad. pol. Sci. Sér. B: (II) 1951: 293–307.Google Scholar
  2. Mikulska, I. (1960). New data to the cytology of the parthenogenetic weevils of the genus Otiorrhynchus Germ. (Curculionidae, Coleoptera) from Poland. Cytologia (Tokyo) 25: 322–333.Google Scholar
  3. Momma, E. (1954). Drosophila survey of Hokkaido, II. Chromosomes of seven wild species. J. Fac. Sci., Hokkaido Univ., Ser. VI Zool. 12: 200–208.Google Scholar
  4. Smith, S. G. (1943). Techniques for the study of insect chromosomes. Can. Ent. 75: 21–34.Google Scholar
  5. Smith, S. G. & Y., Takenouchi (1969). Chromosomal polymorphism in Pissodes weevils: Further on incompatibility in Pissodes terminalis. Can. J. Gent. Cytol. 11: 761–782.Google Scholar
  6. Suomalainen, E. (1940a). Polyploidy in parthenogenetic Curculionidae. Hereditas 26: 51–64.Google Scholar
  7. Suomalainen, E. (1940b). Beiträge zur Zytologie der parthenogenetischen Insekten. Ann. Acad. Sci. Fenn. (Suomal. Tiedeakat. Torin.) 53: 1–145.Google Scholar
  8. Suomalainen, E. (1947). Parthenogenese und Polyploidie bei Rüsselkäfern (Curculionidae). Hereditas 33: 425–456.Google Scholar
  9. Suomalainen, E. (1954). Zur Zytologie der parthenogenetischen Curculioniden der Schweiz. Chromosoma 6: 627–655.Google Scholar
  10. Suomalainen, E. (1955). A further instance of geographical parthenogenesis and polyploidy in the weevils, Cureulionidae. Arch. Soc. “Vanamo” Suppl. 9: 350–354.Google Scholar
  11. Suomalainen, E. (1961). On morphological differences and evolution of different polyploid parthenogenetic weevil population. Hereditas 47: 309–341.Google Scholar
  12. Suomalainen, E. (1966). The first known case of polyploidy in a parthenogenetic curculionid native of America. Hereditas 56: 213–216.Google Scholar
  13. Suomalainen, E. (1969). Evolution in parthenogenetic Curculionidae. Evolut. Biol. 3: 261–296.Google Scholar
  14. Takenouchi, Y. (1964). A preliminary not eon the chromosomes of 4 parthenogenetie weevils (Brachyrhininae) in Canada. Jap. J. Genet. 39: 74–79.Google Scholar
  15. Takenouchi, Y. (1965). Chromosome survey in thirty-four species of bisexual and parthenogenetic weevils of Canada. Can. J. Genet. Cytol. 7: 663–687.Google Scholar
  16. Takenouchi, Y. (1972). Chromosome numbers of Japanese weevils of Curculionoidae (Coleoptera). Kontyû 40: 123–132. (With additional references to Takenouchi).Google Scholar

Copyright information

© Martinus Nijhioff Publishers 1976

Authors and Affiliations

  • Y. Takenouchi
    • 1
  1. 1.Biological Laboratory, Sapporo CollegeHokkaido University of Education SapporoHokkaidoJapan

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