Genetica

, Volume 63, Issue 2, pp 153–159 | Cite as

Comparative karyology of seven species of staphylinoid beetles (Polyphaga: Coleoptera)

  • N. N. Vorontsov
  • J. S. Yadav
  • E. A. Lyapunova
  • V. P. Korablev
  • I. Yu. Yanina
Article

Abstract

The morphology of chromosomes of two species of Silphidae and five species of Staphylinidae and the behaviour of chromosomes in mitosis and meiosis were studied. These staphylinoid beetles did not exhibit a ‘modal karyotype’. However, Xyp was found to be the most common male sex-chromosome mechanism althoughPhilonthus varius andQuedius fuliginosus possessed XO. Dicentric chromosomes were found inPhilonthus fuscipennis. Dicentrics were also found in both European and one East Siberian populations ofPhosphuga atrata.

In the seven species, the diploid chromosome number ranged from 2n=24 to 2n=56. The evolution of karyotype and the interrelationships between species are dicussed.

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Copyright information

© Dr W. Junk Publishers 1984

Authors and Affiliations

  • N. N. Vorontsov
    • 1
  • J. S. Yadav
    • 1
  • E. A. Lyapunova
    • 1
  • V. P. Korablev
    • 1
  • I. Yu. Yanina
    • 1
  1. 1.N. K. Koltzov Institute of Developmental BiologyUSSR Academy of SciencesMoscowU.S.S.R.
  2. 2.Department of ZoologyKurukshetra UniversityKurukshetraIndia

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