PLOIDY EVALUATION OF TRIPLOID HYBRID SPECIES OF CLARIAS GARIEPINUS AND HETEROBRANCHUS BIDORSALIS

Authors

  • W. A. Olaniyi Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria
  • J. A. Adefolaju Adekunle Ajasin University, Akungba-Akoko,Ondo State, Nigeria.
  • J. O. Aniyi Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria
  • O. Olusegun Adekunle Ajasin University, Akungba-Akoko,Ondo State, Nigeria.
  • O. G. Omitogun Obafemi Awolowo University, Ile-Ife, Nigeria.

DOI:

https://doi.org/10.51791/njap.vi.5674

Keywords:

ploidy, Clarias gariepinus, Heterobranchus bidorsalis, polymorphism, speciation

Abstract

This study was undertaken to investigate the ploidy levels of the triploid hybrid catfish species between Clarias gariepinus and Heterobranchus bidorsalis. Samples of triploid hybrid (♀C. gariepinus  ♂H. bidorsalis) and its reciprocal (♀H. bidorsalis  ♂C. gariepinus) were prepared for ploidy assessment. Cytological assessment showed varying chromosome numbers. Most of the counts for triploid hybrid showed modal outcome of 3n=84±2 while its reciprocal triploid gave 3n=80±2. The occurrence of more chromosome numbers around the modal value might be caused by chromosome polymorphism which may suggest ongoing speciation of the two fish species.

Author Biographies

W. A. Olaniyi, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria

Department of Animal and Environmental Biology

J. A. Adefolaju, Adekunle Ajasin University, Akungba-Akoko,Ondo State, Nigeria.

Department of Animal and Environmental Biology

J. O. Aniyi, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria

Department of Animal and Environmental Biology

O. Olusegun, Adekunle Ajasin University, Akungba-Akoko,Ondo State, Nigeria.

Department of Animal and Environmental Biology

O. G. Omitogun, Obafemi Awolowo University, Ile-Ife, Nigeria.

Department of Animal Sciences

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Published

2024-07-08

How to Cite

Olaniyi, W. A. ., Adefolaju, J. A. ., Aniyi, J. O. ., Olusegun, O. ., & Omitogun, O. G. (2024). PLOIDY EVALUATION OF TRIPLOID HYBRID SPECIES OF CLARIAS GARIEPINUS AND HETEROBRANCHUS BIDORSALIS. Nigerian Journal of Animal Production, 832–834. https://doi.org/10.51791/njap.vi.5674

Issue

2021: NSAP 2021 Proceedings

Section

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