Induced Tetraploidy in the African Catfish, <i>Clarias anguillaris</i>-Reference-Cited by-同舟云学术

Induced Tetraploidy in the African Catfish, <i>Clarias anguillaris</i>

Published:2023-09-27 Issue: Volume: Page:1-6
ISSN:0972-009X
Container-title:JOURNAL OF AQUACULTURE
language:
Short-container-title:joa

Author:

Aluko P. O.,Aluko J. F.,Aremu A.

Abstract

Tetraploidy was successfully induced in Clarias anguillaris. Hatchability in tetraploids ranged between 50% and 70%, and above 95% in diploid control. About 80% and 100% of the tetraploid and diploid fry survived in the first seven days, respectively. Tetraploids showed better growth performance (12.61 g) but not significant compared to 11.2 g for the diploid. Metaphase chromosome complement of tetraploid was 108 and diploid was 54. About 20% of cells in tetraploid preparation showed 3n and 2n chromosome complements. About 1% phenotypic abnormalities were recorded after hatching in tetraploid but absent in the control.

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