Study of Genetic Diversity of OrangeSpotted Group

Authors: Suci Antoro Uthairat NaNakorn Worawut Koedprang

Publish Date: 2006/01/01

Volume: 8, Issue: 1, Pages: 17-26

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Abstract

Genetic diversity of Epinephelus coioides Hamilton 1822 which inhabits coastal reefs from the western Indian Ocean to the western Pacific Ocean was studied based on four polymorphic microsatellite loci Two hundred and fifty individuals were collected from two locations in Thailand NakornsrithammaratN and TrangT and four in Indonesia SibolgaS LampungL JeparaJ and FloresF The genetic variation of E coioides was relatively low the observed heterozygosities Ho ranged between 036 F and 055 N The average number of alleles/locus was between 357 L and 509 J Genotypic distribution for most population pairs was significantly different after Bonferroni correction P 00024 except for J and F Population structuring was significant F ST = 0074 The genetic distances between populations ranged between 0016 L and N to 0086 F and S Mantels test showed no correlation between genetic distance and geographical distance The NJ tree clearly separated N from the others which comprised two subgroups TS and LJFWe would like to thank the Thailand Research Fund for funding this research through the project entitled “Application of Genetics and Biotechnology for Sustainable Development of Aquaculture” Senior Research Scholar 2004 awarded to Uthairat NaNakorn We thank Dr Wongpathom Kamonrat Department of Fisheries Ministry of Agriculture and Cooperative Thailand and Srijanya Sukmanomon Department of Aquaculture Faculty of Fisheries Kasetsart University for their help in data analyses Sincere appreciation is extended to Professor Fred Allendorf University of Montana USA and the anonymous referees for their critical comments on the manuscript

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