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News Release 09-005

Modeling Genomic Erosion

Scientists sequence the genomes of symbiotic bacteria to study the process of genome reduction

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Photo of a pink clone of A. pisum (pea aphid), with different stages, growing on fava bean.

This photo shows a pink clone of different stages of A. pisum (pea aphid), growing on fava bean. A. pisum is the host species of the bacteria Buchnera aphidicola.

Credit: Nancy Moran, University of Arizona


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Buchnera cells (green dots) and aphid nucleus (larger body).

This image shows DNA stain of a disrupted bacteriocyte, a specialized cell in the aphid that contains bacteria. The green dots are Buchnera cells (bacteria), while the larger body is an aphid nucleus.

Credit: Nancy Moran, University of Arizona


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Cover of January 16, 2009, issue of Science magazine

The researchers' findings appear in the January 16, 2009, issue of Science magazine.

Credit: Copyright 2009 AAAS


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