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Moss genome shows how plants invaded the land and learned to survive heat and drought
Date:12/14/2007

els, from the organism down to the molecular level, at how mosses do this, and the genome sequence will help speed that work."

From the Department of Energy's perspective, Boore said, discovering the genes involved in desiccation tolerance may help plant biologists incorporate the trait into other plants to improve their growth in arid conditions, allowing, for example, biofuel feedstocks to be grown on marginal land.

Physcomitrella is also a model organism that is easily manipulated for study of how many plant genes function.

"Physcomitrella is to flowering plants what the fruit fly is to humans; that is, in the same way that the fly and mouse have informed animal biology, the genome of this moss will advance our exploration of plant genes and their functions and utility," said Joint Genome Institute director Eddy Rubin.

Quatrano added that, "unlike vascular plant systems, we can target and delete specific moss genes to study their function in important crop processes, and replace them with genes from crop plants to allow us to study the evolution of gene function. In addition to the genome, extensive genomic tools are now available in Physcomitrella to study comparative gene function and evolution as related to bioenergy and other processes of importance to crops."

"The availability of the Physcomitrella genome is expected to create important new opportunities for understanding the molecular mechanisms involved in plant cell wall synthesis and assembly," according to Chris Somerville, UC Berkeley professor of plant and microbial biology and Director of the Energy Biosciences Institute (EBI), a partnership between UC Berkeley, Lawrence Berkeley National Laboratory, the University of Illinois at Urbana-Champaign and the global energy company BP.

"The ease with which genes can be experimentally modified in Physcomitrella will facilitate a wide range of studies of the cell wall, the principal component of terrestri
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Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert

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