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http://dx.doi.org/10.5657/KFAS.2021.0685

Genetic Diversity of Polydora haswelli (Polychaeta, Spionidae) in Korean Shellfish using cox1 Marker  

Lee, Soon Jeong (Mokpo Regional Office, National Fishery Products Quality Management Service (NFQS))
Kim, Seung Min (Mokpo Regional Office, National Fishery Products Quality Management Service (NFQS))
Kwon, Mun Gyeong (Aquatic Life Disease Control Division, National Fishery Products Quality Management Service (NFQS))
Lee, Sang-Rae (Marine Research Institute, Pusan National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.54, no.5, 2021 , pp. 685-690 More about this Journal
Abstract
Harmful shell-boring species of the genus Polydora (Polychaeta: Spionidae) were frequently reported from commercially important mollusk species in Korea, Japan and China. The traditional approach based on the morphological characteristics showed limitations for species discrimination among shell-boring species. Therefore, DNA barcoding was adopted to identify Polydora species using molecular markers. Two Polydora species (P. haswelli and P. hoplura) in abalone shells were reported from our previous molecular phylogenetic study. In this study, we additionally reported the presence of shell-boring Polydora haswelli in commercially sold shellfish. The taxon-specific cox1 marker used in this study successfully allowed the isolation of P. haswelli from cockle Scapharca subcrenata, mussel Mytilus galloprovincialis, oyster Crassostrea gigas and scallop Argopecten irradians. Polydora hoplura was not found in these shellfish species. The genetic variations were found on the intraspecific level of P. haswelli and the same genotype was also detected in different shellfish species. This result can provide information on a new host and accurate parasitic Polydora species. Moreover, this report can be used as the biodiversity data of Polydora species on the invasion and transition of harmful Polydora species in mollusk aquaculture farms.
Keywords
Abalone shell-boring; cox1; Polydora; P. haswelli; shellfish;
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