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Phylogeography And Genetic Diversity Of Humpback Grouper Cromileptes Altivelis Based on Cytochrome C Oxidase I

JudulPhylogeography And Genetic Diversity Of Humpback Grouper Cromileptes Altivelis Based on Cytochrome C Oxidase I
Publication TypeJournal Article
Year of Publication2011
AuthorsSusanto AH, Nuryanto A, S PHT
JournalJurnal Natur Indonesia
Volume14
Start Page47-51
Issue1
Date PublishedOktober 2011
Keywordsgenetic diversity, humpback grouper, Phylogeography
Abstract

Humpback grouper is one of the most popular fish group in the international live trade in Asia-Pacific regions. The price for one kilogram live of humpback grouper, especially in Spermonde Archipelago South of Sulawesi, is range from 350.000 – 400.000 IDR, whereas in the retail level in Hong Kong the price was about 92 US$. This condition leads to the reduction of nature population due to overexploitation. Population decreasing due to overexploitation may cause loss of genetic diversity within population and lead to reduce of potential adaptive, population resistance, and productivity. Therefore, it is important to do some efforts to avoid adverse effect of overexploitation on humpback grouper population in Indonesia. One of the valuable efforts is providing genetic information such as phylogeography and genetic diversity of humpback grouper Cromileptes altivelis.  Analysis was based on 618 base pairs fragment of cytochrome c oxidase I gene from 36 individuals (sequences) of Cromileptes altivelis collected at four different sites (e.g. Pulau Seribu, Jepara, Situbondo and Spermonde Archipelago). The results showed that humpback grouper population has a high haplotype and nucleotide diversity. However, high genetic diversity and polymorphisms could not reveal population fragmentation (Φst = 0,000). It is suggested that high gene flow rather than population sub structuring was occurred.  High level genetic diversity and polymorphisms are vital related to adaptive potential to environmental alteration