Genetic diversity of mud crabs, scylla tranquebarica in Sabah, Malaysia based on cytochrome C oxidase (COI) gene sequence

Kenneth Francis Rodrigues, and Nurul Ain Mohd Sharif, and Noor Amalia Shaiful Kahar, and Julian Ransangan, and Yong, Annita Seok Kian (2016) Genetic diversity of mud crabs, scylla tranquebarica in Sabah, Malaysia based on cytochrome C oxidase (COI) gene sequence. Songklanakarin Journal of Science and Technology, 38 (4). pp. 365-372. ISSN 0125-3395


Download (61kB) | Preview


Mud crabs genus Scylla are distributed across the Indo-West Pacific Oceans. Among the four species, S. tranquebarica dominates the mangrove areas in Sabah, Malaysia and constitutes the primary crustacean fishery resource. Overexploitation of this economically important fisheries resource can have a significant impact on population diversity. This study was conducted to evaluate the genetic diversity of S. tranquebarica from five important fishing grounds. The genetic diversity was estimated based on the cytochrome c oxidase (COI) gene sequence. A total of 143 individuals were sampled across the 5 fishing grounds. The findings revealed that the crabs in Sabah comprised 11 haplotypes with a mean haplotype diversity (h) of 0.5564 and a mean nucleotide diversity (�) of 0.0038. The molecular variance analysis (AMOVA) showed that the low genetic differentiation among crab individuals in the five fishing grounds. The low genetic diversity provides the basis for the establishment of a scientific breeding program to counteract the loss of genetic diversity which is the result of overexploitation of this ecologically and economically important fisheries resource.

Item Type: Article
Uncontrolled Keywords: COI, Fisheries, Genetic diversity, MtDNA, Scylla tranquebarica
Subjects: S Agriculture > SF Animal culture
Q Science > QH Natural history > QH301 Biology
Divisions: SCHOOL > Borneo Marine Research Institute
Depositing User: Unnamed user with email
Date Deposited: 06 Jun 2017 03:33
Last Modified: 23 Oct 2017 06:54

Actions (login required)

View Item View Item

Browse Repository
   UMS News
Quick Search

   Latest Repository

Link to other Malaysia University Institutional Repository

Malaysia University Institutional Repository