ISSN 2756-3839
International Journal of Nematology and Entomology Vol. 1 (4), pp. 078-082, September, 2013. © International Scholars Journals
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.
*Corresponding author. E-mail: [email protected].
Accepted 1 August, 2013
Abstract
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.