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Global Change Master Directory (GCMD)
Assembling and Mining the Genomes of Giant Antarctic Foraminifera
Entry ID: USAP-1341612_1


Summary
Abstract: Agglutinated foraminifera (forams for short) are early-evolving, single-celled organisms. These "living fossils" construct protective shells using sediment grains held together by adhesive substances that they secrete. During shell construction, agglutinated forams display amazing properties of selection - for example, some species build their shells of clear quartz grains, while other species use only grains of a specific size. Understanding how these single cells assemble complex structures may contribute to nanotechnology by enabling people to use forams as "cellular machines" to aid in the construction of nano-devices. This project will analyze the genomes of at least six key foram species, and then "mine" these genomes for technologically useful products and processes. The project will focus initially on the adhesive materials forams secrete, which may have wide application in biomedicine and biotechnology. Furthermore, the work will further develop a molecular toolkit which could open up new avenues of research on the physiology, ecology, and population dynamics of this important group of Antarctic organisms. The project will also further the NSF goals of making scientific discoveries available to the general public and of training new generations of scientists. Educational experiences related to the "thrill of scientific exploration and discovery" for students and the general public will be provided through freely-available short films and a traveling art/science exhibition. The project will also provide hands-on research opportunities for undergraduate students.



Explorers Cove, situated on the western shore of McMurdo Sound, harbors a unique population of foraminiferan taxa at depths accessible by scuba diving that otherwise are primarily found in the deep sea. The project will use next-generation DNA sequencing and microdissection methods to obtain and analyze nuclear and mitochondrial genomes from crown members of two species each from three distinct, early-evolving foraminiferal groups. It will also use next generation sequencing methods to characterize the in-situ prokaryotic assemblages (microbiomes) of one of these groups and compare them to reference sediment microbiomes. The phyogenomic studies of the targeted Antarctic genera will help fill significant gaps in our current understanding of early foram evolution. Furthermore, comparative genomic analyses of these six species are expected to yield a better understanding of the physiology of single-chambered agglutinated forams, especially the bioadhesive proteins and regulatory factors involved in shell composition and morphogenesis. Additionally, the molecular basis of cold adaptation in forams will be examined, particularly with respect to key proteins.

Related URL
Link: View Related Information
Description: NSF Award Abstract


Link: View Related Information
Description: Scanning electron micrographs: Influence of heavy metal (Pb, Cd) exposure on shell morphogenesis in Astrammina rara, a giant agglutinated Antarctic foraminiferan protist.

Geographic Coverage
 N: -77.57623 S: -77.57623  E: 163.5117  W: 163.5117

Data Set Citation
Dataset Creator: Bowser, Samuel
Dataset Title: Scanning electron micrographs: Influence of heavy metal (Pb, Cd) exposure on shell morphogenesis in Astrammina rara, a giant agglutinated Antarctic foraminiferan protist.
Dataset Release Date: 2018-11-29T00:00:00.000Z
Dataset Publisher: USAP-DC
Version: 1
Online Resource: http://www.usap-dc.org/view/dataset/601138


Temporal Coverage
Start Date: 2014-09-01
Stop Date: 2017-08-31


Location Keywords
OCEAN > SOUTHERN OCEAN > ROSS SEA
VERTICAL LOCATION > SEA FLOOR


Science Keywords
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOTOXICOLOGY    [Definition]
BIOLOGICAL CLASSIFICATION >PROTISTS >AMOEBOIDS    [Definition]


Platform
NOT APPLICABLE


Instrument
NOT APPLICABLE


Project
NSF/OPP >Office of Polar Programs, National Science Foundation


Keywords
USAP-DC


Data Set Progress
COMPLETE


Data Center
United States Antarctic Program Data Center    [Information]
Data Center URL: http://www.usap-dc.org/

Data Center Personnel
Name: DATA MANAGER
Email: info at usap-dc.org
Contact Address:
Lamont-Doherty Earth Observatory
61 Route 9W
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA


Personnel
SAMUEL BOWSER
Role: INVESTIGATOR
Email: foramsam at gmail.com
Contact Address:
Health Research Incorporated/New York State Department of Health


Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2018-11-29
Last DIF Revision Date: 2018-12-05



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