MEPS 396:211-219 (2009)  -  DOI: https://doi.org/10.3354/meps08281

Genetic population structures of the blue starfish Linckia laevigata and its gastropod ectoparasite Thyca crystallina

M. Kochzius1,*,**, C. Seidel1,2, J. Hauschild1,3, S. Kirchhoff1, P. Mester1, I. Meyer-Wachsmuth1, A. Nuryanto1,4, J. Timm1

1Biotechnology and Molecular Genetics, FB2-UFT, University of Bremen, Leobenerstrasse UFT, 28359 Bremen, Germany
2Present address: Insitute of Biochemistry, University of Leipzig, Brüderstrasse 34, 04103 Leipzig, Germany
3Present address: Friedrich-Loeffler-Institut, Bundesforschungsinstitut für Tiergesundheit, Institut für Nutztiergenetik, Höltystrasse 10, 31535 Neustadt, Germany
4Present address: Faculty of Biology, Jenderal Soedirman University, Dr. Suparno Street, Purwokerto 53122, Indonesia
*Email:
**All authors except M.K. and C.S. are in alphabetical order

ABSTRACT: Comparative analyses of the genetic population structure of hosts and parasites can be useful to elucidate factors that influence dispersal, because common ecological and evolutionary processes can lead to congruent patterns. We studied the comparative genetic population structure based on partial sequences of the mitochondrial cytochrome oxidase I gene of the blue starfish Linckia laevigata and its gastropod ectoparasite Thyca crystallina in order to elucidate evolutionary processes in the Indo-Malay Archipelago. AMOVA revealed a low fixation index but significant genetic population structure (φST = 0.03) in L. laevigata, whereas T. crystallina showed panmixing (φST = 0.005). According to a hierarchical AMOVA, the populations of L. laevigata could be assigned to the following groups: (1) Eastern Indian Ocean, (2) central Indo-Malay Archipelago and (3) Western Pacific. This pattern of a genetic break in L. laevigata between the Indian and Pacific Ocean, congruent to studies on other marine species in the Indo-Malay Archipelago, is likely due to allopatry caused by Pliocene and Pleistocene glacial sea level low stands.


KEY WORDS: COI · Coral Triangle · Coral reef · Phylogeography · Population expansion · Southeast Asia


Full text in pdf format  
Cite this article as: Kochzius M, Seidel C, Hauschild J, Kirchhoff S and others (2009) Genetic population structures of the blue starfish Linckia laevigata and its gastropod ectoparasite Thyca crystallina. Mar Ecol Prog Ser 396:211-219. https://doi.org/10.3354/meps08281

Export citation
Mail this link - Contents Mailing Lists - RSS
- -