Genetic Variation between Triploid and Diploid Clarias gariepinus (Burchell, 1822) Using RAPD Markers.

Autor: Normala, Jalil, Okomoda, Victor Tosin, Mohd, Azizul Alim, Nur, Asma Ariffin, Abol-Munafi, Ambok Bolong, Sheriff, Shahreza Md
Předmět:
Zdroj: Veterinary Sciences; May2021, Vol. 8 Issue 5, p1-12, 12p
Abstrakt: This study was designed to examine the use of RAPD markers in discriminating triploid and diploid African catfish Clarias gariepinus (Burchell, 1822). Following a routine technique, triploidy was induced by cold shock and confirm by erythrocyte measurement in C. gariepinus. Thereafter, 80 RAPD markers were screened; out of which, three showed the highest percentage of polymorphism (i.e., OPB 16 = 71.43%; OPC 14 = 61.9%; OPD 12 = 75%). The results obtained showed genotype differences between triploid and diploid without overlapping. However, the development of a Sequence Characterized Amplified Region (SCAR) marker was not achievable because progenies of triploid and diploid C. gariepinus could not be differentiated based on a specific fragment. Consequently, the genetic distance showed high similarities for both treatments and the UPGMA-generated dendrogram could not separate the treatments into two distinct clusters. It was concluded that RAPD makers cannot be used to separate the ploidy status of fishes. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index