Characterization of highly repetitive sequences of Arabidopsis thaliana

We have analyzed three classes of highly repetitive DNA sequences of Arabidopsis thaliana, composed of tamdemly repeated units of 180 bp, 500 bp, and 160 bp, respectively. The three families comprise approximately 2% of the Arabidopsis genome and are the major component of the highly repetitive DNA....

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Bibliographic Details
Published in:Nucleic acids research 1988-07, Vol.16 (14B), p.6753-6766
Main Authors: SIMOENS, C. R, GIELEN, J, VAN MONTAGU, M, INZE, D
Format: Article
Language:English
Subjects:
Arabidopsis thaliana
Base Sequence
Biological and medical sciences
Cloning, Molecular
DNA - genetics
Fundamental and applied biological sciences. Psychology
Genes. Genome
Molecular and cellular biology
Molecular genetics
Molecular Sequence Data
Plants - genetics
Repetitive Sequences, Nucleic Acid
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Summary:We have analyzed three classes of highly repetitive DNA sequences of Arabidopsis thaliana, composed of tamdemly repeated units of 180 bp, 500 bp, and 160 bp, respectively. The three families comprise approximately 2% of the Arabidopsis genome and are the major component of the highly repetitive DNA. The 500-bp element arose by duplication of one half of a 180-bp ancestor and insertion of a foreign segment between the two duplicated parts followed by amplification. The repeat elements contain occasionally palindromes and other motifs but none are significantly conserved. There is no significant similarity with previously published repetitive elements. Heterogeneity between monomers ranges from 6% to 17%. Monomers derived from different clusters in the genome are more diverged than monomers of the same array.
ISSN:0305-1048
1362-4962
DOI:10.1093/nar/16.14.6753