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AB 25:7-15 (2016)  -  DOI:

Unique COI haplotypes in Hediste diversicolor populations in lagoons adjoining the Ionian Sea

Katerina Vasileiadou1,2,*, Christina Pavloudi2,3, Elena Sarropoulou2, Nina Fragopoulou1, Georgios Kotoulas2, Christos Arvanitidis2

1Department of Biology, University of Patras, 26500 Patras, Greece
2Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, 71003 Heraklion, Crete, Greece
3Department of Biology, University of Crete, Voutes University Campus, 70013 Heraklion, Crete, Greece
*Corresponding author:

ABSTRACT: The present study examines the genetic diversity (using cytochrome c oxidase subunit I [COI] haplotypes) of polychaete Hediste diversicolor populations in the Amvrakikos Gulf (western Greece) in order to test Cognetti’s hypothesis on the formation of distinct isolated populations of species living in stressed transitional water habitats. To this purpose, the intraspecific diversity of H. diversicolor and the similarities among its populations in the brackish water habitats of the Eastern Mediterranean were investigated. Samples were collected from the lagoonal complex of Amvrakikos Gulf in 2010 and 2011. Analysis showed that populations in the Amvrakikos Gulf share unique haplotypes which are distinct from the haplotypes hitherto reported, suggesting that these populations are highly isolated. This evidence partially supports Cognetti’s hypothesis. The results indicate that the genetic differentiation in the studied populations was probably caused by the complete isolation of the gulf and periodic hypoxic conditions during its formation history. The occurrence of unique haplotypes in the gulf underlines the importance of considering genetic diversity in the design of long-term biodiversity management and conservation plans.

KEY WORDS: Lagoons · Amvrakikos Gulf · Hediste diversicolor · COI · Genetic diversity · Phylogenetic network

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Cite this article as: Vasileiadou K, Pavloudi C, Sarropoulou E, Fragopoulou N, Kotoulas G, Arvanitidas C (2016) Unique COI haplotypes in Hediste diversicolor populations in lagoons adjoining the Ionian Sea. Aquat Biol 25:7-15.

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