Research Article

The Origins of Genomic Duplications in Arabidopsis

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Science  15 Dec 2000:
Vol. 290, Issue 5499, pp. 2114-2117
DOI: 10.1126/science.290.5499.2114

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Large segmental duplications cover much of theArabidopsis 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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