Comparative analysis of C-heterochromatin, ribosomal and telomeric DNA markers in chromosomes of Pamphagidae grasshoppers from Morocco

Olesya G. Buleu, Ilyas Y. Jetybayev, Dragan P. Chobanov, Alexander G. Bugrov

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The karyotypes and the localization of C-bands, clusters of ribosomal DNA and telomeric repeats of 10 species of the family Pamphagidae from Morocco are described for the first time. The species studied belong to the subfamilies Pamphaginae and Thrinchinae. All species have karyotypes consisting of 19 and 20 acrocentric chromosomes and X0/XX sex chromosome system in males and females, respectively (2n♂=19, NF=19; 2n♀=20, NF=20). Despite the karyotype conservatism, we revealed differences in the location and size of C-heterochromatin blocks and ribosomal DNA clusters. A comparative analysis of these differences shows that karyotype divergences in this group is connected not to structural chromosome rearrangements, but to the evolution of repetitive DNA.

Original languageEnglish
Pages (from-to)61-74
Number of pages14
JournalComparative Cytogenetics
Volume13
Issue number1
DOIs
Publication statusPublished - 27 Feb 2019

Keywords

  • C-banding
  • FISH
  • Karyotypes
  • Pamphagidae grasshoppers
  • Ribosomal DNA repeats
  • Telomeric repeats (TTAGG)
  • ACRIDOIDEA
  • LOCATION
  • RDNA
  • HISTONE GENE
  • BANDING PATTERNS
  • CAELIFERA
  • ORTHOPTERA
  • ribosomal DNA repeats
  • CENTRAL-ASIA
  • telomeric repeats (TTAGG)(n)
  • INSECTS
  • karyotypes
  • GENUS EUMIGUS

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