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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number D684-1

Plant pathologists Bill Wintermantel (left) and Ivan Simko view results of quantitative RT-PCR testing for Mirafiori lettuce big vein virus in lettuce breeding lines.

Photo by Stephen Ausmus.

640 pixels wide: (d684-1.jpg)

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Last Modified: 1/30/2007
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