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.

journal_name

Mar Pollut Bull

authors

Zou C,Ye RM,Zheng JW,Luo ZH,Gu HF,Yang WD,Li HY,Liu JS

doi

10.1016/j.marpolbul.2014.09.056

subject

Has Abstract

pub_date

2014-12-15 00:00:00

pages

209-219

issue

1-2

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(14)00665-1

journal_volume

89

pub_type

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