AB

Aquatic Biology

Aquatic Biology is a gold Open Access journal and a multidisciplinary forum for research on the biology of organisms in marine, brackish and fresh waters. SEDAO (Sexuality and Early Development in Aquatic Organisms), an international journal that covered all aspects of reproduction and early development in marine, brackish and freshwater organisms, was incorporated into AB in late 2015.

Online: ISSN 1864-7790

Print: ISSN 1864-7782

DOI: https://doi.org/10.3354/ab

Volume contents
Aquat Biol 32:31-41 (2023)

Genetic diversity and population structure of the upriver orange mangrove Bruguiera sexangula along the coastlines of Thailand

ABSTRACT: Upriver orange mangrove Bruguiera sexangula is a member of the Rhizophoraceae family and is usually distributed in the intertidal zones of the tropical and subtropical coastal areas. The analyses of genetic diversity and population structure of B. sexangula are essential for their conservation and management. In the present study, the genetic diversity and structure of 101 B. sexangula individuals from mangrove forests in Thailand were evaluated using single nucleotide polymorphisms (SNPs) through restriction site-associated DNA sequencing (RAD-seq). A total of 3482 high-quality SNPs were obtained after filtration for genetic study. All 3 genetic structure analyses (Bayesian analysis, principal components analysis, and maximum likelihood tree) revealed that these individuals can be clustered into 2 groups corresponding to geographical regions, namely the Andaman Sea and Gulf of Thailand. The level of genetic differentiation between the clusters was moderate (FST = 0.122, p < 0.001), and the analysis of molecular variance (AMOVA) indicated that the individual differences within groups were greater than the differences between the 2 groups. A moderate level of genetic diversity (Shannon\'s information index, I = 0.458; observed heterozygosity, Ho = 0.416; expected heterozygosity, He = 0.295) of B. sexangula was observed. These results give us a better understanding of the genetic variations and will provide a framework for the conservation of B. sexangula.

KEYWORDS

Supaporn Khanbo (Co-author)

  • National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand

Sonicha U-thoomporn (Co-author)

  • National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand

Wasitthee Kongkachana (Co-author)

  • National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand

Salisa Charoensri (Co-author)

  • National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand

Nattapol Narong (Co-author)

  • National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand

Chatree Maknual (Co-author)

  • Department of Marine and Coastal Resources, The Government Complex, Chaengwatthana Road, Thung Song Hong, Bangkok 10210, Thailand

Pranom Chumriang (Co-author)

  • Department of Marine and Coastal Resources, The Government Complex, Chaengwatthana Road, Thung Song Hong, Bangkok 10210, Thailand

Pasin Maprasop (Co-author)

  • Department of Marine and Coastal Resources, The Government Complex, Chaengwatthana Road, Thung Song Hong, Bangkok 10210, Thailand

Poonsri Wanthongchai (Co-author)

  • Department of Marine and Coastal Resources, The Government Complex, Chaengwatthana Road, Thung Song Hong, Bangkok 10210, Thailand

Sithichoke Tangphatsornruang (Co-author)

  • National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand

Wirulda Pootakham (Corresponding Author)

  • National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
wirulda@alumni.stanford.edu