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Genetica

, Volume 35, Issue 1, pp 171–174 | Cite as

Notes on chromosome behaviour in the spermatogenesis of the damselflyEnallagma cyathigerum (Charp.) (Odonata: Coenagrionidae)

  • Janny M. van Brink
  • B. Kiauta
Article

Abstract

The chromosome number in the damselflyEnallagma cyathigerum (Charp.) is 2n ♂=27, 2n ♀=28, n ♂=14 (13). The sex determining mechanism is XX-XO, the X segregates postreductionally in the male.

Keywords

Chromosome Number Chromosome Behaviour Determine Mechanism 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Boyes, J. W. & J. M. van Brink (1964). Chromosomes of Syrphidae. I. A Preliminary Report. (In press).Google Scholar
  2. Corbet, P. S. et al. (1960). Dragonflies. (260 pp.). Collins, London.Google Scholar
  3. Hughes Schrader, S. (1948). Cytology of coccids (Coccoidea, Homoptera).Advanc. Genet. 2: 127–203.Google Scholar
  4. Lucas, W. J. (1930). The aquatic (naiad) stage of the British dragonflies (Paraneuroptera). (132 pp.). Ray Soc. Publ., London.Google Scholar
  5. Oksala, T. (1943). Zytologische Studien an Odonaten. I. Chromosomenver-hältnisse bei der GattungAeschna, mit besonderer Berücksichtigung der postreduktionellen Teilung der Bivalente.Ann. Acad. Sci. Fenn. A, IV,4: 1–65.Google Scholar
  6. Oksala, T. (1945). Zytologische Studien an Odonaten. III. Die Ovogenese.Ann. Acad. Sci. Fenn., A, IV,9: 1–32.Google Scholar
  7. Oksala, T. (1952). Chiasma formation and chiasma interference in the Odonata.Hereditas 38: 449–480.Google Scholar
  8. Walker, E. M. (1916). The nymphs ofEnallagma cyathigerum andE. calverti.Can. Ent. 48: 192–196.Google Scholar
  9. White, M. J. D. (1935). The effects of X-rays on mitosis in the spermatogonial divisions ofLocusta migratoria L.Proc. Roy. Soc. Lond. B,119: 61–84.Google Scholar

Copyright information

© Martinus Nijhoff 1964

Authors and Affiliations

  • Janny M. van Brink
    • 1
  • B. Kiauta
    • 1
  1. 1.Genetisch InstituutUniversity of UtrechtNetherlands

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