The origins of genomic duplications in Arabidopsis |
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Authors: | Vision T J Brown D G Tanksley S D |
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Institution: | USDA-ARS Center for Agricultural Bioinformatics, 604 Rhodes Hall, Cornell University, Ithaca, NY 14853, USA. tv23@cornell.edu |
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Abstract: | Large segmental duplications cover much of the Arabidopsis thaliana genome. Little is known about their origins. We show that they are primarily due to at least four different large-scale duplication events that occurred 100 to 200 million years ago, a formative period in the diversification of the angiosperms. A better understanding of the complex structural history of angiosperm genomes is necessary to make full use of Arabidopsis as a genetic model for other plant species. |
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