Russian Journal of Genetics

, Volume 41, Issue 4, pp 436–444 | Cite as

Divergence patterns of banding sequences in different polytene chromosome arms reflect relatively independent evolution of different genome components

  • L. I. Gunderina
  • I. I. Kiknadze
  • A. G. Istomina
  • V. D. Gusev
  • L. A. Miroshnichenko
General Genetics


Divergence patterns of the banding sequences of the chromosomal arms A, C, D, E, and F were compared in 63 species of the genus Chironomus. Evaluation of the number of breakpoints between the pairs of inverted banding sequences and the analysis of the lengths of the conserved segments in the chromosomal arms in the chironomid species examined showed that different arms evolved relatively independently and at different rates. No direct correlation between the arm length and the breakpoints number was observed. The length of the conservative segment was not fixed, but was arm-specific. Robustness and reliability of the estimates of phylogenetic relationships between the species examined increased with the arm number, i.e., with the genome proportion included in the analysis.


Phylogenetic Relationship Divergence Pattern Polytene Chromosome Independent Evolution Genome Component 
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Copyright information

© MAIK “Nauka/Interperiodica” 2005

Authors and Affiliations

  • L. I. Gunderina
    • 1
  • I. I. Kiknadze
    • 1
  • A. G. Istomina
    • 1
  • V. D. Gusev
    • 2
  • L. A. Miroshnichenko
    • 2
  1. 1.Institute of Cytology and GeneticsRussian Academy of SciencesNovosibirskRussia
  2. 2.Sobolev Institute of MathematicsRussian Academy of SciencesNovosibirskRussia

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