Document Type
Article
Publication Date
1-1-2015
Publication Title
Journal of Eukaryotic Microbiology
Abstract
The isolate American Type Culture Collection (ATCC)® 50979™ is a small amoebozoan whose actin gene was previously characterized, but did not allow a stable phylogenetic placement. This isolate was originally mis-identified upon deposition, and subsequently mis-illustrated in a recent publication. Here, we provide both a detailed morphological description as well as additional molecular analyses in order to clarify the isolate's phylogenetic relationships. The amoeba is minute (less than 5 μm), and presents the behavior of staying in a fixed location, while emitting one or two thin pseudopods. Transmission electron microscopy reveals that the cell is covered in a layer with embedded scales, giving the cell an armored appearance. Molecular phylogenetic analyses of data (actin, alpha- and beta-tubulin, elongation factor 2, and 14-3-3) from transcriptomes of this and four other isolates reveals that ATCC® 50979™ is closely related to the recently described Squamamoeba japonica and in a novel, stable clade. Due to the unique nature of the scale covering, as well as other gross morphological characters and the molecular phylogenetic analyses, we formally describe the isolate as Sapocribrum chincoteaguense n. gen. n. sp.
Keywords
ATCC PRA-39, Filamoeba, phylogenetic analyses, Squamamoeba, transcriptome, transmission electron microscopy, Trichosphaerium
Volume
62
Issue
4
First Page
444
Last Page
453
DOI
10.1111/jeu.12199
ISSN
10665234
Rights
Licensed to Smith College and distributed CC-BY under the Smith College Faculty Open Access Policy.
Recommended Citation
Lahr, Daniel J.G.; Grant, Jessica; Molestina, Robert; Katz, Laura A.; and Anderson, O. Roger, "Sapocribrum chincoteaguense n. gen. n. sp.: A Small, Scale-bearing Amoebozoan with Flabellinid Affinities" (2015). Biological Sciences: Faculty Publications, Smith College, Northampton, MA.
https://scholarworks.smith.edu/bio_facpubs/101
Comments
Peer reviewed accepted manuscript.