International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:9, September, 2018

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(9): 3369-3374

Chromosomal and Banding Studies in Sphaerium indicum (Bivalvia: Mollusca)
Poonam1*, N.K. Tripathi1 and Preetpal Kour2
1Department of Zoology, Central University of Jammu, Rahya-Suchani (Bagla), District Samba-181143, Jammu, India
2Department of Zoology, GCW Parade, Jammu, India
*Corresponding author

During the present study, mitotic chromosomes of freshwater snail Sphaerium indicum were studied using gills. The observed diploid chromosome number was 2n=30 consisting of 26 metacentric pairs and 04 submetacentric pairs respectively. Chromosomes were studied using Giemsa staining and two banding techniques viz. C-banding and Ag-NOR banding. Preliminary C-band studies revealed the presence of terminal blocks besides the presence of centromeric heterochromatin. The nucleolar organizer region (NOR) was found on one chromosome pair i.e. on the submetacentric chromosome pair no. 5. The cytogenetic relationship between S. indicum and other species of Veneroida was also discussed.

Keywords: Sphaerium, Veneroida, Chromosome, Mitosis

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How to cite this article:

Poonam, N.K. Tripathi and Preetpal Kour. 2018. Chromosomal and Banding Studies in Sphaerium indicum (Bivalvia: Mollusca).Int.J.Curr.Microbiol.App.Sci. 7(9): 3369-3374. doi:
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