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Multiple Strains of the Parasitic Dinoflagellate Amoebophrya Exist in Chesapeake Bay
Author(s) -
GUNDERSON JOHN H.,
JOHN SHINU A.,
CHANSON BOMAN W.,
COATS D. WAYNE
Publication year - 2002
Publication title -
journal of eukaryotic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 1066-5234
DOI - 10.1111/j.1550-7408.2002.tb00230.x
Subject(s) - biology , dinoflagellate , chesapeake bay , phylogenetic tree , clade , gymnodinium , alexandrium tamarense , strain (injury) , zoology , botany , ecology , algal bloom , genetics , estuary , anatomy , phytoplankton , gene , nutrient
Small subunit rRNA sequences were amplified from Amoebophrya strains infecting Karlodinium micrum, Gymnodinium instriatum and an unidentified Scrippsiella species in Chesapeake Bay. The alignable parts of the sequences differed from each other and from the previously reported rRNA sequence of the Amoebophrya strain infecting Akashiwo sanguinea in Chesapeake Bay by 4 to 10%. This is a greater degree of difference than sometimes found between sequences from separate genera of free‐living dinoflagellates. These sequence differences indicate that the Amoebophrya strains parasitizing dinoflagellates in Chesapeake Bay do not all belong to the same species. In spite of their relative dissimilarity, the sequences do group together into a single clade with high bootstrap support in phylogenetic trees constructed from the sequences.