Diversity and oceanic distribution of prasinophytes clade VII, the dominant group of green algae in oceanic waters.

ABSTRACT: Prasinophytes clade VII is a group of pico/nano-planktonic green algae (division Chlorophyta) for which numerous ribosomal RNA (rRNA) sequences have been retrieved from the marine environment in the last 15 years. A large number of strains have also been isolated but have not yet received a formal taxonomic description. A phylogenetic analysis of available strains using both the nuclear 18S and plastidial 16S rRNA genes demonstrates that this group composes at least 10 different clades: A1-A7 and B1-B3. Analysis of sequences from the variable V9 region of the 18S rRNA gene collected during the Tara Oceans expedition and in the frame of the Ocean Sampling Day consortium reveal that clade VII is the dominant Chlorophyta group in oceanic waters, replacing Mamiellophyceae, which have this role

SUBMITTER: Lopes Dos Santos A 

PROVIDER: S-EPMC5270561 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature