title: Molecular phylogeny and PSP toxin profile of the Alexandrium tamarense species complex along the coast of China.
abstract: To explore the genetic diversity and paralytic shellfish poisoning (PSP) toxin profile of the Alexandrium tamarense species complex along the coast of China, 67 strains of A. tamarense from the China Sea were collected and genetic diversity were analyzed based on the rDNA sequences. In addition, PSP toxin compositions and contents were detected by HPLC. According to the 5.8S rDNA and ITS, and LSU rDNA D1-D2 sequence, A. tamarense in the China Sea comprises at least Group IV and Group I ribotypes. In these Chinese strains, the toxins with the highest concentration in the profile were C1/2, gonyautoxins 1/4 (GTX1/4) and neosaxitoxin (NEO). However, the toxin profiles were atypical and C1/2 toxins were not detected in some strains. No strict correlation was observed between the PSP toxins profile and the geographical distribution.
authors.affiliation: College of Life Science and Technology, Jinan University, Guangzhou 510632, China; Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Guangzhou 510632, China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Zou
authors.affiliation: College of Life Science and Technology, Jinan University, Guangzhou 510632, China; Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Guangzhou 510632, China.
authors.forename: Rui-Min
authors.initials: RM
authors.lastname: Ye
authors.affiliation: College of Life Science and Technology, Jinan University, Guangzhou 510632, China; Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Guangzhou 510632, China.
authors.forename: Jian-Wei
authors.initials: JW
authors.lastname: Zheng
authors.affiliation: College of Life Science and Technology, Jinan University, Guangzhou 510632, China; The Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China.
authors.forename: Zhao-He
authors.initials: ZH
authors.lastname: Luo
authors.affiliation: The Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China.
authors.forename: Hai-Feng
authors.initials: HF
authors.lastname: Gu
authors.affiliation: College of Life Science and Technology, Jinan University, Guangzhou 510632, China; Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Guangzhou 510632, China. Electronic address: tywd@jnu.edu.cn.
authors.forename: Wei-Dong
authors.initials: WD
authors.lastname: Yang
authors.affiliation: College of Life Science and Technology, Jinan University, Guangzhou 510632, China; Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Guangzhou 510632, China.
authors.forename: Hong-Ye
authors.initials: HY
authors.lastname: Li
authors.affiliation: College of Life Science and Technology, Jinan University, Guangzhou 510632, China; Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Guangzhou 510632, China.
authors.forename: Jie-Sheng
authors.initials: JS
authors.lastname: Liu
mesh_terms: D002681:China; D002851:Chromatography, High Pressure Liquid; D004275:DNA, Ribosomal; D004141:Dinoflagellida / Q000145:classification* / Q000235:genetics* / Q000472:pathogenicity; D014644:Genetic Variation; D005828:Genetics, Population; D006801:Humans; D010802:Phylogeny; D012530:Saxitoxin / Q000031:analogs & derivatives / Q000032:analysis; D057096:Shellfish Poisoning
chemical_list: D004275:DNA, Ribosomal; D012530:Saxitoxin; C034902:neosaxitoxin; C013007:gonyautoxins
keywords: ITS; LSU; PSP toxins; The Alexandrium tamarense species complex