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Plant sequence completed
Email: William Wells - wells@biotext.com News from The Scientist 2000, 1(1):20001214-04
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In the 14 December Nature the Arabidopsis Genome Initiative (AGI) announces the completion of the first plant genome sequence. The published sequence covers 115.4 megabases of the estimated 125-megabase genome of the thale cress Arabidopsis thaliana, a model plant. The sequence contains 25,498 genes encoding proteins from 11,000 families. The gene number is high for two reasons: an ancient diploidization, and the presence of 1,528 tandem arrays (containing 4,140 individual genes), which probably arose after unequal crossing-over events during recombination.
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