The Bioscan, 3(4): 397-400, 2008
An International Quarterly Journal of Life Sciences
web site: www.thebioscan.in 
MEIOTIC BEHAVIOUR OF CHROMOSOMES OF OXYA VELOX (FABR.) (ACRIDIDAE: 
ORTHOPTERA) FROM JAMMU REGION
N. K. TRIPATHI AND R. K. SANTHAL*
Department of Zoology, University of Jammu, Jammu - 180 006, Jammu and Kashmir, INDIA
E-mail: rks_210@yahoo.co.in

KEY WORDS
Orthoptera
C-banding
Heterochromatin Chromosomes Grasshopper Received on: 13.05.2008 Accepted on: 18.11.2008 *Corresponding Author

ABSTRACT

Meiotic chromosomes of Oxya velox were analyzed using conventional as well as C-banding techniques. Male specimens of Oxya velox, having 2n=23 and showed X0-type of sex mechanism. All elements exhibited C-bands in the centromeric region. The most frequent location of C-heterochromatin occurs in centromeric and telomeric regions where as interstitial C-bands are very rare. The chromosomes number was futher confirmed from various meiotic stages. All the populations showed variation with regard to chiasma frequencies. Considering these variation, meiotic mechanisms and chiasma frequencies of Oxya species of grasshoppers from Jammu region were investigated.