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Algae > Volume 21(3); 2006 > Article
Algae 2006;21(3): 283-286. doi: https://doi.org/10.4490/algae.2006.21.3.283
Phylogenetic Analysis of Dinoflagellate Gonyaulax polygramma Stein Responsible for Harmful Algal Blooms Based on the Partial LSU rDNA Sequence Data
Keun-Yong Kim1, Young-Soo Kim1, Choul-Hee Hwang1, Chang-Kyu Lee2, Wol-Ae Lim2 and Chang-Hoon Kim1*

1Department of Aquaculture, Pukyong National University, Busan 608-737, Korea
2Harmful Algal Bloom Research Team, National Fisheries Research and Development Institute, Busan 619-705, Korea
This study carried out phylogenetic analysis of dinoflagellate Gonyaulax polygramma which was responsible for a harmful algal bloom episode in Korea in 2004. Molecular phylogenetic tree inferred from the partial LSU rDNA data showed that G. polygramma came up among the monophyletic Gonyaulax clade, but did not have apparent genetic affiliation to other Gonyaulax species. This result appears to be consistent with characteristic morphological features of G. polygramma such as epitheca sharply tapering to the apex and thecal plates ornamented with numerous longitudinal striations.
Key words: Gonyaulax polygramma, harmful algal bloom (HAB), LSU rDNA, molecular phylogeny

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