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A novel widespread cryptic species and phylogeographic patterns within several giant clam species (Cardiidae: Tridacna) from the Indo-Pacific Ocean

Huelsken, Thomas, Keyse, Jude, Liggins, Libby, Penny, Shane, Treml, Eric A. and Riginos, Cynthia 2013, A novel widespread cryptic species and phylogeographic patterns within several giant clam species (Cardiidae: Tridacna) from the Indo-Pacific Ocean, PloS one, vol. 8, no. 11, doi: 10.1371/journal.pone.0080858.

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Title A novel widespread cryptic species and phylogeographic patterns within several giant clam species (Cardiidae: Tridacna) from the Indo-Pacific Ocean
Author(s) Huelsken, Thomas
Keyse, Jude
Liggins, Libby
Penny, Shane
Treml, Eric A.ORCID iD for Treml, Eric A. orcid.org/0000-0003-4844-4420
Riginos, Cynthia
Journal name PloS one
Volume number 8
Issue number 11
Article ID e80858
Total pages 10
Publisher Public Library of Science
Place of publication San Francisco, Calif.
Publication date 2013-11-20
ISSN 1932-6203
1932-6203
Keyword(s) Animals
Bayes Theorem
Cardiidae
DNA, Mitochondrial
Electron Transport Complex IV
Indian Ocean
Molecular Sequence Data
Pacific Ocean
Phylogeography
Species Specificity
Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
GENETIC-STRUCTURE
MAXIMA POPULATIONS
CORAL TRIANGLE
GIGAS POPULATIONS
CROCEA
REEFS
SEA
DNA
DIFFERENTIATION
CONNECTIVITY
Summary Giant clams (genus Tridacna) are iconic coral reef animals of the Indian and Pacific Oceans, easily recognizable by their massive shells and vibrantly colored mantle tissue. Most Tridacna species are listed by CITES and the IUCN Redlist, as their populations have been extensively harvested and depleted in many regions. Here, we survey Tridacna crocea and Tridacna maxima from the eastern Indian and western Pacific Oceans for mitochondrial (COI and 16S) and nuclear (ITS) sequence variation and consolidate these data with previous published results using phylogenetic analyses. We find deep intraspecific differentiation within both T. crocea and T. maxima. In T. crocea we describe a previously undocumented phylogeographic division to the east of Cenderawasih Bay (northwest New Guinea), whereas for T. maxima the previously described, distinctive lineage of Cenderawasih Bay can be seen to also typify western Pacific populations. Furthermore, we find an undescribed, monophyletic group that is evolutionarily distinct from named Tridacna species at both mitochondrial and nuclear loci. This cryptic taxon is geographically widespread with a range extent that minimally includes much of the central Indo-Pacific region. Our results reinforce the emerging paradigm that cryptic species are common among marine invertebrates, even for conspicuous and culturally significant taxa. Additionally, our results add to identified locations of genetic differentiation across the central Indo-Pacific and highlight how phylogeographic patterns may differ even between closely related and co-distributed species.
Language eng
DOI 10.1371/journal.pone.0080858
Field of Research MD Multidisciplinary
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2013, Huelsken et al
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30107548

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.