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DNA Markers Based Genetic Polymorphism in Natural Populations of Channa marulius

DNA Markers Based Genetic Polymorphism in Natural Populations of Channa marulius

Mamona Jabeen1, Sumra Naz1, Hina Amjad1, Khalid Abbas1*, Sajid Abdullah1, Muhammad Anjum Zia2, Taqwa Safdar1 and Muhammad Sarfraz Ahmed1

1Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad-38040, Pakistan
2Department of Biochemistry, University of Agriculture, Faisalabad-38040, Pakistan
* Corresponding author:


Characterization of freshwater fish species using molecular markers is important for their management regarding the evaluation of the potential genetic effects induced by anthropogenic interventions. The genetic variability among five natural populations of Channa marulius was studied by using five microsatellite loci in a total of 150 individuals. The C. marulius population exhibited a moderate level of heterozygosity. The mean value of observed heterozygosity ranged between 0.700 – 0.833 while the expected heterozygosity varied between 0.863 – 0.868. Significant deviation from HWE (P<0.05) was observed in all the populations due to the deficits of heterozygotes suggesting either due to inbreeding or recent mixing of stocks. AMOVA revealed that the majority of the variation (77.21%) lied within the individuals than among the individuals within populations (15.48%). The UPGMA dendrogram based on Nei’s genetic distance revealed that the C. marulius population was divided into two major clusters. This study would be helpful to underpin the causes of decline in genetic diversity of C. marulius and provide significant guidelines over the effective management and conservation strategies for sustainable fisheries of Channa species in Pakistan.

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Pakistan Journal of Zoology


Pakistan J. Zool., Vol. 55, Iss. 6, pp. 2501-3000


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