RRC ID 27278
著者 Marin B, Melkonian M.
タイトル Molecular phylogeny and classification of the Mamiellophyceae class. nov. (Chlorophyta) based on sequence comparisons of the nuclear- and plastid-encoded rRNA operons.
ジャーナル Protist
Abstract Molecular phylogenetic analyses of the Mamiellophyceae classis nova, a ubiquitous group of largely picoplanktonic green algae comprising scaly and non-scaly prasinophyte unicells, were performed using single and concatenated gene sequence comparisons of the nuclear- and plastid-encoded rRNA operons. The study resolved all major clades within the class, identified molecular signature sequences for most clades through an exhaustive search for non-homoplasious synapomorphies [Marin et al. (2003): Protist 154: 99-145] and incorporated these signatures into the diagnoses of two novel orders, Monomastigales ord nov., Dolichomastigales ord. nov., and four novel families, Monomastigaceae fam. nov., Dolichomastigaceae fam. nov., Crustomastigaceae fam. nov., and Bathycoccaceae fam. nov., within a revised classification of the class. A database search for the presence of environmental rDNA sequences in the Monomastigales and Dolichomastigales identified an unexpectedly large genetic diversity of Monomastigales confined to freshwater, a novel clade (Dolicho_B) in the Dolichomastigaceae from deep sea sediments and a novel freshwater clade in the Crustomastigaceae. The Mamiellophyceae represent one of the ecologically most successful groups of eukaryotic, photosynthetic picoplankters in marine and likely also freshwater environments.
巻・号 161(2)
ページ 304-36
公開日 2010-4-1
DOI 10.1016/j.protis.2009.10.002
PII S1434-4610(09)00080-7
PMID 20005168
MeSH Cell Nucleus / genetics* Chlorophyta / classification* Chlorophyta / genetics* Cluster Analysis DNA, Protozoan / chemistry DNA, Protozoan / genetics DNA, Ribosomal / chemistry DNA, Ribosomal / genetics Fresh Water / microbiology Molecular Sequence Data Phylogeny* Plastids / genetics* Seawater / microbiology Sequence Analysis, DNA rRNA Operon / genetics*
IF 1.989
引用数 108
WOS 分野 MICROBIOLOGY
リソース情報
藻類 NIES-252 NIES-483 NIES-360 NIES-255