18S rDNA phylogeny of lamproderma and allied genera (Stemonitales, Myxomycetes, Amoebozoa).

ABSTRACT: The phylogenetic position of the slime-mould genus Lamproderma (Myxomycetes, Amoebozoa) challenges traditional taxonomy: although it displays the typical characters of the order Stemonitales, it appears to be sister to Physarales. This study provides a small subunit (18S or SSU) ribosomal RNA gene-based phylogeny of Lamproderma and its allies, with new sequences from 49 specimens in 12 genera. We found that the order Stemonitales and Lamproderma were both ancestral to Physarales and that Lamproderma constitutes several clades intermingled with species of Diacheopsis, Colloderma and Elaeomyxa. We suggest that these genera may have evolved from Lamproderma by multiple losses of fruiting body stalks and that many taxonomic revisions are needed. We found such high genetic diversity within thre

SUBMITTER: Fiore-Donno AM 

PROVIDER: S-EPMC3329430 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature