Evidence of geographical structuring in the Malaysian Snakehead, Channa striata based on partial segment of the CO1 gene

Abu Bakar Siti-Balkhis,Mohd Nor Siti-Azizah,Amirul Firdaus Jamaluddin Jamsari,Zulfigar Yasin,Tan Shau Hwai

doi:10.1590/s1415-47572011005000016

Abu Bakar Siti-Balkhis, Mohd Nor Siti-Azizah + Show 3 more

Open Access

https://doi.org/10.1590/s1415-47572011005000016

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Journal: Genetics and Molecular Biology	Publication Date: Jan 1, 2011
Citations: 11	License type: cc-by

Affiliation: Universiti Sains Malaysia

Abstract

Channa striata, locally known as “haruan”, is economically important in fisheries and aquaculture industries in several Asian countries. DNA sequencing, based on a partial segment of the Cytochrome oxidase c subunit 1 (CO1) gene, was used to determine genetic variation in C. striata samples from four different populations on the west coast of Peninsular Malaysia. The highest nucleotide and haplotype diversities were observed in the Linggi population (π = 0.0067, h = 0.835), and the lowest in the Timah Tasoh population (π = 0.0008, h = 0.286). Apart from Kajang-Linggi, which was insignificant, FST values were significant (p < 0.05) in all pairwise-population comparisons. Consequently, it is inferred that genetic structuring C. striata populations in this region was largely shaped by a common origin, with secondary influences from geographical factors and isolation.

Highlights

Channa striata, locally known as “haruan”, is a carnivorous freshwater air-breather (Jianguang and Fast, 1997)
Studies by Ng et al (2004) showed that a C. striata extract is useful as an alternative treatment in, osteoarthritis, a joint-disorder involving the softening and disintegration of articular cartilage, with subsequent changes in the underlying bones
The objective was to determine the genetic variation in C. striata populations from four different locations on the west coast of Peninsular Malaysia, through DNA sequencing of c oxidase 1 (CO1) of mtDNA

Summary

Introduction

Locally known as “haruan”, is a carnivorous freshwater air-breather (Jianguang and Fast, 1997). The objective was to determine the genetic variation in C. striata populations from four different locations on the west coast of Peninsular Malaysia, through DNA sequencing of CO1 of mtDNA. Forty five samples were collected from two northern sites, Timah Tasoh (Perlis) and Jeniang (Kedah) and two southern Linggi (Negeri Sembilan) and Kajang (Selangor) (Figure 1).

Results

Conclusion