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Bee-killing Parasite Genome Sequenced

Date:
June 5, 2009
Source:
Public Library of Science
Summary:
Scientists have sequenced the genome of a parasite that can kill honey bees. Nosema ceranae is one of many pathogens suspected of contributing to the current bee population decline, termed colony collapse disorder.

Agricultural Research Service scientists have sequenced the genome of the invasive parasite Nosema ceranae that can kill honey bees.
Credit: Photo courtesy of David Cappaert, Michigan State University, Bugwood.org.

Agricultural Research Service (ARS) scientists have sequenced the genome of a parasite that can kill honey bees. Nosema ceranae is one of many pathogens suspected of contributing to the current bee population decline, termed colony collapse disorder (CCD).

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In 2006, CCD began devastating commercial beekeeping operations, with some beekeepers reporting losses of up to 90 percent, according to the USDA. Researchers believe CCD may be the result of a combination of pathogens, parasites and stress factors, but the cause remains elusive. At stake are honey bees that play a valuable part in a $15 billion industry of crop farming in the United States.

The microsporidian Nosema is a fungus-related microbe that produces spores that bees consume when they forage. Infection spreads from their digestive tract to other tissues. Within weeks, colonies are either wiped out or lose much of their strength. Nosema apis was the leading cause of microsporidia infections among domestic bee colonies until recently when N. ceranae jumped from Asian honey bees to the European honey bees used commercially in the United States.

The ARS scientists used genetic tools and microscopic analysis at the ARS Bee Research Laboratory (BRL) in Beltsville, Maryland to examine N. ceranae. They collaborated with colleagues at the University of Maryland, College Park, Maryland, Columbia University, New York, New York, and 454 Life Sciences, of Branford, Connecticut.

Sequencing the genome should help scientists trace the parasite's migration patterns, determine how it became dominant, and help resolve the spread of infection by enabling the development of diagnostic tests and treatments.

ARS is a scientific research agency in the U.S. Department of Agriculture.

Supported by the USDA-ARS Administrator fund, (JDE, JC, JP), North America Pollinator Protection Campaign, (JE, JC), USDA-NRI grant # 2002-0256, (JE), Northeast Biodefense Center Grant # U54AI57158, (WIL), and Google.org Contract # 17-2008, (WIL). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The use of trade, firm, or corporation names in this paper is for the information and convenience of the reader. Such use does not constitute an official endorsement or approval by the United States Department of Agriculture or the Agricultural Research Service of any product or service to the exclusion of others that may be suitable.

ME, SH, and BD are employed by 454 Life Sciences/Roche Applied Sciences.


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Cornman et al. Genomic Analyses of the Microsporidian Nosema ceranae, an Emergent Pathogen of Honey Bees. PLoS Pathogens, 2009; 5 (6): e1000466 DOI: 10.1371/journal.ppat.1000466

Cite This Page:

Public Library of Science. "Bee-killing Parasite Genome Sequenced." ScienceDaily. ScienceDaily, 5 June 2009. <www.sciencedaily.com/releases/2009/06/090604222430.htm>.
Public Library of Science. (2009, June 5). Bee-killing Parasite Genome Sequenced. ScienceDaily. Retrieved March 4, 2015 from www.sciencedaily.com/releases/2009/06/090604222430.htm
Public Library of Science. "Bee-killing Parasite Genome Sequenced." ScienceDaily. www.sciencedaily.com/releases/2009/06/090604222430.htm (accessed March 4, 2015).

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