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  Published Paper Details:

  Paper Title

HETEROMORPHIC NORS IN TWO INDIAN CATFISHES BECOMING ENDANGERED TELEOSTEI: SILURIFORMES)

  Authors

  DR ADARSHDEEP KAUR

  Keywords

NORs, catfishes, karyotype

  Abstract


Somatic chromosomes and localization of nucleolar organizer regions in two vulnerable Indian catfishes, belonging to order Siluriformes have been analyzed. The diploid chromosome number in Mystus gulio is 58 (22m + 36t) with FN=80 and Ompok bimaculatus is 42 (12m + 12sm + 6st + 12t) with FN=66. Both the species showed a single pair of heteromorphic NORs at the terminal regions. However, in M. gulio these were present on the telomeric regions of the long arms of acrocentric pair, which is a unique feature. This suggests that this species is not closely related to any of other. The heteromorphic of NORs found during the present investigations in both the species, may either be functional or may even be structural.

  IJCRT's Publication Details

  Unique Identification Number - IJCRT2211283

  Paper ID - 227737

  Page Number(s) - c451-c456

  Pubished in - Volume 10 | Issue 11 | November 2022

  DOI (Digital Object Identifier) -   

  Publisher Name - IJCRT | www.ijcrt.org | ISSN : 2320-2882

  E-ISSN Number - 2320-2882

  Cite this article

  DR ADARSHDEEP KAUR,   "HETEROMORPHIC NORS IN TWO INDIAN CATFISHES BECOMING ENDANGERED TELEOSTEI: SILURIFORMES)", International Journal of Creative Research Thoughts (IJCRT), ISSN:2320-2882, Volume.10, Issue 11, pp.c451-c456, November 2022, Available at :http://www.ijcrt.org/papers/IJCRT2211283.pdf

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ISSN: 2320-2882
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ISSN: 2320-2882
Impact Factor: 7.97 and ISSN APPROVED
Journal Starting Year (ESTD) : 2013
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