Genetic differentiation and heavy metal pollution influence on horseshoe crab Tachypleus gigas populations in Peninsular Malaysia: A comprehensive allozyme analysis
This study aimed study the genetic diversity and differentiation of Asian horseshoe crab Tachypleus gigas (Müller, 1785) populations across three distinct locations in Peninsular Malaysia: Kampung Pasir Puteh (KPPuteh), Kuala Sungai Ayam (KSAyam), and Kampung Pulau Sayak (KPSayak). A total of 28 in...
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BdFISH
2024-09-01
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| Series: | Journal of Fisheries |
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| Online Access: | https://journal.bdfish.org/index.php/fisheries/article/view/743 |
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| author | Chee Kong Yap Khalid Awadh Al-Mutairi |
| author_facet | Chee Kong Yap Khalid Awadh Al-Mutairi |
| author_sort | Chee Kong Yap |
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This study aimed study the genetic diversity and differentiation of Asian horseshoe crab Tachypleus gigas (Müller, 1785) populations across three distinct locations in Peninsular Malaysia: Kampung Pasir Puteh (KPPuteh), Kuala Sungai Ayam (KSAyam), and Kampung Pulau Sayak (KPSayak). A total of 28 individuals were collected, and their genetic structure was analyzed using starch gel electrophoresis. The study employed multiple buffer systems optimized for separating 20 different enzymes, each contributing to understanding the genetic variability within and between populations. The findings of this study, which revealed significant genetic differentiation, particularly between populations in polluted and less impacted environments, as reflected by high FST values and distinct clustering in the UPGMA dendrogram, are of paramount importance. The results indicate that environmental factors, especially metal-polluted sites at KPPuteh and KSAyam, have played a critical role in shaping the genetic structure of these populations. Populations from the two polluted sites, exhibited higher genetic diversity and greater deviations from Hardy–Weinberg equilibrium, suggesting localized selection pressures. Conversely, from a less polluted site, the unpolluted site at KPSayak population showed lower genetic variability and was genetically distinct from the others. These findings underscore the importance of considering environmental influences in conservation strategies for T. gigas, highlighting the need for site-specific management to preserve genetic diversity and ensure long-term survival of the species.
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| format | Article |
| id | doaj-art-8bb4efb3c86f41d6b606fb7c9e70fc28 |
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| issn | 2311-729X 2311-3111 |
| language | English |
| publishDate | 2024-09-01 |
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| spelling | doaj-art-8bb4efb3c86f41d6b606fb7c9e70fc282025-08-20T01:54:31ZengBdFISHJournal of Fisheries2311-729X2311-31112024-09-0112310.17017/j.fish.743Genetic differentiation and heavy metal pollution influence on horseshoe crab Tachypleus gigas populations in Peninsular Malaysia: A comprehensive allozyme analysisChee Kong Yap0Khalid Awadh Al-Mutairi1Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, MalaysiaDepartment of Biology, Faculty of Science, University of Tabuk, Tabuk, P.O. Box 741, Saudi Arabia This study aimed study the genetic diversity and differentiation of Asian horseshoe crab Tachypleus gigas (Müller, 1785) populations across three distinct locations in Peninsular Malaysia: Kampung Pasir Puteh (KPPuteh), Kuala Sungai Ayam (KSAyam), and Kampung Pulau Sayak (KPSayak). A total of 28 individuals were collected, and their genetic structure was analyzed using starch gel electrophoresis. The study employed multiple buffer systems optimized for separating 20 different enzymes, each contributing to understanding the genetic variability within and between populations. The findings of this study, which revealed significant genetic differentiation, particularly between populations in polluted and less impacted environments, as reflected by high FST values and distinct clustering in the UPGMA dendrogram, are of paramount importance. The results indicate that environmental factors, especially metal-polluted sites at KPPuteh and KSAyam, have played a critical role in shaping the genetic structure of these populations. Populations from the two polluted sites, exhibited higher genetic diversity and greater deviations from Hardy–Weinberg equilibrium, suggesting localized selection pressures. Conversely, from a less polluted site, the unpolluted site at KPSayak population showed lower genetic variability and was genetically distinct from the others. These findings underscore the importance of considering environmental influences in conservation strategies for T. gigas, highlighting the need for site-specific management to preserve genetic diversity and ensure long-term survival of the species. https://journal.bdfish.org/index.php/fisheries/article/view/743environmental pollutiongenetic differentiationpopulation geneticsstarch gel electrophoresisTachypleus gigas |
| spellingShingle | Chee Kong Yap Khalid Awadh Al-Mutairi Genetic differentiation and heavy metal pollution influence on horseshoe crab Tachypleus gigas populations in Peninsular Malaysia: A comprehensive allozyme analysis Journal of Fisheries environmental pollution genetic differentiation population genetics starch gel electrophoresis Tachypleus gigas |
| title | Genetic differentiation and heavy metal pollution influence on horseshoe crab Tachypleus gigas populations in Peninsular Malaysia: A comprehensive allozyme analysis |
| title_full | Genetic differentiation and heavy metal pollution influence on horseshoe crab Tachypleus gigas populations in Peninsular Malaysia: A comprehensive allozyme analysis |
| title_fullStr | Genetic differentiation and heavy metal pollution influence on horseshoe crab Tachypleus gigas populations in Peninsular Malaysia: A comprehensive allozyme analysis |
| title_full_unstemmed | Genetic differentiation and heavy metal pollution influence on horseshoe crab Tachypleus gigas populations in Peninsular Malaysia: A comprehensive allozyme analysis |
| title_short | Genetic differentiation and heavy metal pollution influence on horseshoe crab Tachypleus gigas populations in Peninsular Malaysia: A comprehensive allozyme analysis |
| title_sort | genetic differentiation and heavy metal pollution influence on horseshoe crab tachypleus gigas populations in peninsular malaysia a comprehensive allozyme analysis |
| topic | environmental pollution genetic differentiation population genetics starch gel electrophoresis Tachypleus gigas |
| url | https://journal.bdfish.org/index.php/fisheries/article/view/743 |
| work_keys_str_mv | AT cheekongyap geneticdifferentiationandheavymetalpollutioninfluenceonhorseshoecrabtachypleusgigaspopulationsinpeninsularmalaysiaacomprehensiveallozymeanalysis AT khalidawadhalmutairi geneticdifferentiationandheavymetalpollutioninfluenceonhorseshoecrabtachypleusgigaspopulationsinpeninsularmalaysiaacomprehensiveallozymeanalysis |