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Comparative genetic population structure of three endangered giant clams (Cardiidae: Tridacna species) throughout the Indo-West Pacific: implications for divergence, connectivity and conservation
Hui, Min1,2; Kraemer, Wiebke E.2,3; Seidel, Christian2,4; Nuryanto, Agus2,5; Joshi, Aboli2; Kochzius, Marc2,6
2016-08-01
Source PublicationJOURNAL OF MOLLUSCAN STUDIES
Volume82Pages:403-414
SubtypeArticle
AbstractInformation on the genetic population structure of endangered giant clams is important for conservation programmes and the understanding of ecological and evolutionary processes. In this study, the genetic population structures of three codistributed and ecologically similar giant clam species (Tridacna crocea, T. maxima and T. squamosa) are compared. A fragment of the cytochrome c oxidase I gene was sequenced as a genetic marker in three giant clam species sampled throughout the Indo-West Pacific, from the Western Indian Ocean (WIO) and Red Sea (RS) to the Eastern Indian Ocean (EIO), across the centre of marine biodiversity in the Indo-Malay Archipelago (IMA) to the Western Pacific (WP) and the Society Islands in the Central Pacific (CP). All three species showed limited gene flow and a highly significant genetic population structure. The Phi(st)-values (P < 0.001) are 0.46, 0.81 and 0.68 for T. crocea, T. maxima and T. squamosa, respectively. Based on a hierarchical AMOVA they could be divided into three to six groups from West to East: (1) WIO (T. maxima and T. squamosa), (2) RS (T. maxima and T. squamosa), (3) EIO (including Java Sea in T. maxima), (4) central IMA, (5) WP and (6) CP (T. maxima). The distribution of the haplotype clades in the populations and the pairwise Fst-values between populations indicated a high level of gene flow in the central IMA for the three species. The concordant patterns suggest that geological history, sea-level changes during glacial periods of the Pliocene and Pleistocene, and oceanography are important factors shaping the genetic population structure of giant clams. The observed deep evolutionary lineages in the peripheral areas of the IMA might include cryptic species.
DOI10.1093/mollus/eyw001
Indexed BySCI
Language英语
WOS IDWOS:000380019000005
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/130944
Collection实验海洋生物学重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Expt Marine Biol, Inst Oceanol, Qingdao 266071, Peoples R China
2.Univ Bremen, Biotechnol & Mol Genet, FB2,Leobener Str UFT, D-28359 Bremen, Germany
3.Univ Nacl Autonoma Mexico, Lab Fotobiol, Unidad Acad Sistemas Arrecifales Puerto Morelos, Inst Ciencias Mar & Limnol, Quintana Roo, Cancun, Mexico
4.Univ Leipzig, Inst Biochem, Leipzig, Germany
5.Jenderal Soedirman Univ, Fac Biol, Purwokerto, Indonesia
6.Vrije Univ Brussel, Marine Biol, Pl Laan 2, B-1050 Brussels, Belgium
Recommended Citation
GB/T 7714
Hui, Min,Kraemer, Wiebke E.,Seidel, Christian,et al. Comparative genetic population structure of three endangered giant clams (Cardiidae: Tridacna species) throughout the Indo-West Pacific: implications for divergence, connectivity and conservation[J]. JOURNAL OF MOLLUSCAN STUDIES,2016,82:403-414.
APA Hui, Min,Kraemer, Wiebke E.,Seidel, Christian,Nuryanto, Agus,Joshi, Aboli,&Kochzius, Marc.(2016).Comparative genetic population structure of three endangered giant clams (Cardiidae: Tridacna species) throughout the Indo-West Pacific: implications for divergence, connectivity and conservation.JOURNAL OF MOLLUSCAN STUDIES,82,403-414.
MLA Hui, Min,et al."Comparative genetic population structure of three endangered giant clams (Cardiidae: Tridacna species) throughout the Indo-West Pacific: implications for divergence, connectivity and conservation".JOURNAL OF MOLLUSCAN STUDIES 82(2016):403-414.
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