Evaluation of Clarias gariepinus, Heterobranchus bidorsalis and Their Hydridsploidy

Authors

  • W. A. Olaniyi AdekunleAjasin University, PMB 001,Akungba-Akoko, 342111, Ondo State, Nigeria
  • J. O. Aniyi AdekunleAjasin University, PMB 001, Akungba-Akoko, 342111, Ondo State, Nigeria
  • J. A. Adefolaju AdekunleAjasin University, PMB 001, Akungba-Akoko, 342111, Ondo State, Nigeria
  • O. Olusegun AdekunleAjasin University, PMB 001, Akungba-Akoko, 342111, Ondo State, Nigeria

DOI:

https://doi.org/10.51791/njap.vi.6220

Keywords:

Chromosome number, C. gariepinus, H.bidorsalis, aneuploidy, hybrids

Abstract

This study investigated the chromosome numberof Clariasgariepinus, Heterobranchus bidorsalis, their hybrid C. gariepinus × H. bidorsalis and reciprocal hybrid H. bidorsalis × C. gariepinus. The chromosome preparation through mitotic cells stimulation, harvesting, fixation, and spreading were carried out following modification of the standard methods. Cytological examination confirmed the established karyotype ofC. gariepinus having 2n=56 while H. bidorsalis recorded 2n=52. Both hybrids revealed intermediate karyotype of 2n=54 as sum of haploid numbers of chromosome from the parents. The closeness of the chromosome numbers explains the successful hybridization even in nature. However, the aneuploidy of the hybrids suggests its non-suitability for breeding program for commercial purposes.

Author Biographies

W. A. Olaniyi, AdekunleAjasin University, PMB 001,Akungba-Akoko, 342111, Ondo State, Nigeria

Department of Animal and Environmental Biology, 

J. O. Aniyi, AdekunleAjasin University, PMB 001, Akungba-Akoko, 342111, Ondo State, Nigeria

Department of Animal and Environmental Biology, 

J. A. Adefolaju, AdekunleAjasin University, PMB 001, Akungba-Akoko, 342111, Ondo State, Nigeria

Department of Animal and Environmental Biology,

O. Olusegun, AdekunleAjasin University, PMB 001, Akungba-Akoko, 342111, Ondo State, Nigeria

Department of Animal and Environmental Biology,

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Published

2024-07-09

How to Cite

Olaniyi, W. A. ., Aniyi, J. O. ., Adefolaju, J. A. ., & Olusegun, O. . (2024). Evaluation of Clarias gariepinus, Heterobranchus bidorsalis and Their Hydridsploidy. Nigerian Journal of Animal Production, 1103–1106. https://doi.org/10.51791/njap.vi.6220

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