Analysis of 1.9Mb of contiguous sequence from chromosome 4 of Arabidopsis thaliana

The plant Arabidopsis thaliana (Arabidopsis) has become an important model species for the study of many aspects of plant biology. The relatively small size of the nuclear genome and the availability of extensive physical maps of the five chromosomes provide a feasible basis for initiating sequencin...

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Published in:Nature (London) 1998-01, Vol.391 (6666), p.485-488
Main Authors: Bevan, M, Bancroft, I, Bent, E, Love, K, Goodman, H, Dean, C, Bergkamp, R, Dirkse, W, Van Staveren, M, Stiekema, W, Drost, L, Ridley, P, Hudson, S-A, Patel, K, Murphy, G, Piffanelli, P, Wedler, H, Wedler, E, Wambutt, R, Weitzenegger, T, Pohl, T M, Terryn, N, Gielen, J, Villarroel, R, De Clerck, R, Van Montagu, M, Lecharny, A, Auborg, S, Gy, I, Kreis, M, Lao, N, Kavanagh, T, Hempel, S, Kotter, P, Entian, K-D, Rieger, M, Schaeffer, M, Funk, B, Mueller-Auer, S, Silvey, M, James, R, Montfort, A, Pons, A, Puigdomenech, P, Douka, A, Voukelatou, E, Milioni, D, Hatzopoulos, P, Piravandi, E, Obermaier, B, Hilbert, H, Duesterhoeft, A, Moores, T, Jones, JDG, Eneva, T, Palme, K, Benes, V, Rechman, S, Ansorge, W, Cooke, R, Berger, C, Delseny, M, Voet, M, Volckaert, G, Mewes, H-W, Klosterman, S, Schueller, C, Chalwatzis, N
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Language:English
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Arabidopsis thaliana
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Summary:The plant Arabidopsis thaliana (Arabidopsis) has become an important model species for the study of many aspects of plant biology. The relatively small size of the nuclear genome and the availability of extensive physical maps of the five chromosomes provide a feasible basis for initiating sequencing of the five chromosomes. The YAC (yeast artificial chromosome)-based physical map of chromosome 4 was used to construct a sequence-ready map of cosmid and BAC (bacterial artificial chromosome) clones covering a 1.9-megabase (Mb) contiguous region, and the sequence of this region is reported here. Analysis of the sequence revealed an average gene density of one gene every 4.8 kilobases (kb), and 54% of the predicted genes had significant similarity to known genes. Other interesting features were found, such as the sequence of a disease-resistance gene locus, the distribution of retroelements, the frequent occurrence of clustered gene families, and the sequence of several classes of genes not previously encountered in plants.
ISSN:0028-0836
DOI:10.1038/35140