Ecology, Environment and Conservation Paper

Vol 26, April Suppl. Issue, 2020; Page No.(70-76)

AN EVIDENCE OF THE MISSING COMPLETE PECTORAL FINS TRAITIN CLARIAS GARIEPINUS REARED IN POND IS HERITABLE

Farikhah Farikhah, Sukoso Sukoso, Uun Yanuhar, Feni Iranawati and Muchlis Zainudin Arif

Abstract

This research is aimed to evaluate if the missing complete pectoral fins trait in C.gariepinus reared in pond is heritable. The trait assessed by the analysis of pectoral fin phenotypes in the first generation (F1) and the second generation (F2) from the parents (P) with missing complete pectoral fins. The methods were descriptive, with the primary variable being the pectoral fin phenotype (individuals). F1 population obtainedwide range variation in pectoral fins phenotypes, i.e pectoral fin only one, pectoral fins deformed, and normal pectoral fins while missing complete pectoral fins trait emerged from F2 generation. As many as 15 individuals with missing complete pectoral fins-trait obtained from the cross of B & F1 with normal pectoral fins x @ & F1 with normal pectoral fins, while the crossing between B & F1 with normal pectoral fins and @& with missing complete pectoral fins, that is obtained 6 Individual with pectoral fins loss- character. Basedon F2 phenotype, it concluded that the pectoral fins loss-trait is heritable. The trait shows epistasis and multigenic-character. The full sibling mating inherits more offspring with missing complete pectoral fins.These findings can help the Aquaculturist to manage abnormal traits which emerged in the fish pond,especially pectoral fin anomalies.

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