Journal of
Entomology and Nematology

  • Abbreviation: J. Entomol. Nematol.
  • Language: English
  • ISSN: 2006-9855
  • DOI: 10.5897/JEN
  • Start Year: 2009
  • Published Articles: 135

Full Length Research Paper

Chromosome study in few species of Acridids (Acrididae: Tryxalinae): Karyotypic analysis and distribution patterns of constitutive heterochromatin

Pooja Chadha* and Anupam Mehta
Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab India.
Email: [email protected]

  •  Accepted: 01 December 2010
  •  Published: 31 January 2011



Chromosomes with detailed karyotypic information (nature, number, size, relative length, length of X-chromosome, nature of X-chromosome) and C-banding patterns of few species of grasshoppers belonging to sub-familiy Tryxalinae are discussed. The karyotypes comprises of acrocentric chromosomes with complement number 2n = 23 (male). Constitutive heterochromatin distribution was found at centomeric, interstitial, terminal sites along with thick and thin bands among all the species except in Acrida turrita which possessed only centromeric C-bands. The number and location of C-bands in Acridids exhibit intra specific variations. In the present communication the karyotypic analysis and C-banding patterns are analyzed for further differences between genera belonging to the same sub-family.


Key words: Acrididae, orthoptera, C-banding.