Microsatellite Analysis of Wild and Captive Populations of Asian Arowana (Scleropages formosus) in Peninsular Malaysia


	Journal of Biological Sciences
	Year: 2008 \| Volume: 8 \| Issue: 3 \| Page No.: 517-525 DOI: 10.3923/jbs.2008.517.525

Microsatellite Analysis of Wild and Captive Populations of Asian Arowana (Scleropages formosus) in Peninsular Malaysia

Shafiqur Rahman, Mohd. Zakaria-Ismail, Pek Yee Tang and Sekaran Muniandy

Abstract: The genetic variability of wild populations of green arowana (Scleropages formosus) from Tasek Bera Lake and Endau River and a captive stock of Malaysian golden arowana as an out-group population was studied. The average number of alleles per locus was low, ranging from 2.33 in the Endau River population to 2.56 in the Tasek Bera Lake population. Departures from Hardy-Weinberg equilibrium were observed in these three populations depending on the locus. Among nine loci, seven significantly deviated from Hardy-Weinberg Equilibrium (p<0.05) in the Tasek Bera Lake population whereas five significantly departed from HWE (p<0.05) in the Endau River population. A deficit of heterozygosity was observed from the analysis of these nine loci. This genetic data indicate the wild population may be under stress due to inbreeding, over fishing and deterioration in the breeding environment. The estimates of F_ST and R_ST were statistically greater than zero for each comparison and this suggested the existence of three genetically distinct populations. However, the values of F_ST is low between Tasek Bera Lake and Endau River populations, reflecting historical patterns of connections between river systems in Peninsular Malaysia.

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How to cite this article:

Shafiqur Rahman, Mohd. Zakaria-Ismail, Pek Yee Tang and Sekaran Muniandy, 2008. Microsatellite Analysis of Wild and Captive Populations of Asian Arowana (Scleropages formosus) in Peninsular Malaysia. Journal of Biological Sciences, 8: 517-525.

DOI: 10.3923/jbs.2008.517.525

URL: https://scialert.net/abstract/?doi=jbs.2008.517.525

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