The Origins of Genomic Duplications in Arabidopsis

• Published in: Science (American Association for the Advancement of Science) Vol. 290; no. 5499; pp. 2114 - 2117
• Main Authors: Vision, Todd J., Brown, Daniel G., Tanksley, Steven D.
• Format: Journal Article
• Language: English
• Published: Washington, DC American Society for the Advancement of Science 15.12.2000; American Association for the Advancement of Science; The American Association for the Advancement of Science
• Subjects: Age structure; Amino Acid Substitution; Angiosperms; Arabidopsis - classification; Arabidopsis - genetics; Arabidopsis thaliana; Arabidopsis: Research Articles; Biological and medical sciences; Biological Evolution; Chromosome Mapping; Chromosomes; Coding; DNA; Duplication; Flowers & plants; Fundamental and applied biological sciences. Psychology; Gene Deletion; Gene Duplication; Gene expression; Genes; Genes, Plant; Genetic aspects; Genetics; Genetics of eukaryotes. Biological and molecular evolution; Genome, Plant; Genomes; Genomics; Magnetism; Magnoliopsida - genetics; Open Reading Frames; Phylogeny; Physics; Plant Proteins - chemistry; Plant Proteins - genetics; Plants; Plants (Organisms); Protons; Quarks; Weeds; Arabidopsis thaliana; Molecular evolution; Duplication; Cruciferae; Dicotyledones; Angiospermae; Biological model; Homology; Spermatophyta; Genome
• ISSN: 0036-8075; 1095-9203
• DOI: 10.1126/science.290.5499.2114

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.