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Elphidium margaritaceum Unknown


Principle Investigator(s) Jan Pawlowski
External sample ID12EM
Sample accession numberCAM_SMPL_003143
Assembly accession numberCAM_ASM_000861
Combined Assembly NameN/A
Prelim. NCBI Taxon ID933848
18S rRNA
Importance of organism and transcriptomesForaminifera are among the most abundant and diverse marine protists, characterized by granuloreticulopodia. Their tests or shells are an important component of marine sediments and widely used as biostratigraphic markers. Elphidium margaritaceum is classified within the order Rotaliida. The genus is one of the most common in the coastal waters and our strain was collected from the English Channel. To date, the molecular data on this organism, and foraminifers in general, is poorly represented in the available databases. Our knowledge on the gene expression repertoire and metabolic pathways used by foraminifers is still very limited. Additionally, transcriptomic data has shown to be a powerful tool for finding orthologous genes for further phylogenetic analysis, in an aim to resolve the phylogenetic relationships among the group and within the Eukaryotes.
Additional citations and referencesi. Pillet L, De Vargas C, Pawlowski J. Molecular identification of sequestered diatom chloroplasts and kleptoplastidy in Foraminifera. Protist 2011;162:394-404.
Environmental Data
Primary citation for organism's characterization, if availableElphidium advenum (Cushman) var. margaritaceum Cushman, 1930, The foraminifera of the Atlantic Ocean; Part 7 - Nonionidae, Comerinida, Peneroplidae, Alveolinellidae. U.S. Nat. Mus., Bull., Washington, D.C., USA. No. 104, p.25
Sample collection siteEnglish Channel
ENVO term for habitat - primary termAcquatic: marine
ENVO term for habitat - secondary termSediment
Habitatmarine habitat
Experimental Data
Date of experiment06-DEC-12
Growth mediumnon cultivable
Temperature (ºC)18
Salinty (psu)40
Day portion of day:night cycle in hours12
Night portion of day:night cycle in hours12
Nitrate (μmol/L)12
Ammonium (μmol/L)4
Phosphate (μmol/L)2
Silicate (μmol/L)1
Trace elements (total) (nmol/L)15
Prey organism, if applicable (genus and species)Bacteria and diatoms
Investigation typeEukaryotes