Genetic variation of Lates calcarifer in Peninsular Malaysia based on the cytochrome b gene

• Published in: Aquaculture research Vol. 40; no. 15; pp. 1742 - 1749
• Main Authors: Norfatimah, M.Y, Siti Azizah, M.N, Othman, A.S, Patimah, I, Jamsari, A.F.J
• Format: Journal Article
• Language: English
• Published: Oxford, UK Oxford, UK : Blackwell Publishing Ltd 01.10.2009; Blackwell Publishing Ltd
• Subjects: cytochrome b; Dicentrarchus labrax; genetic variation; Lates calcarifer; Marine; population structure; ISEW, Malaysia
• ISSN: 1355-557X; 1365-2109
• DOI: 10.1111/j.1365-2109.2009.02279.x

A 312 bp segment of the mitochondrial cytochrome b gene was sequenced from 132 sea bass Lates calcarifer individuals from nine populations across Peninsular Malaysia. Phylogenetic analysis and analysis of molecular variance within and among populations showed no significant geographical structuring. Several populations formed discrete units while others were of mixed populations. The former group suggests a low gene flow among some populations while the latter suggests that widespread translocations have impacted the other wild and cultured local populations. The data from this study have important implications for fishery management, conservation of sea bass stocks and translocation policy for aquaculture and stock enhancement in Peninsular Malaysia.