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Review
. 1992 Sep;19(6):1057-64.
doi: 10.1007/BF00040537.

Information contents and dinucleotide compositions of plant intron sequences vary with evolutionary origin

O White  1 , C Soderlund, P Shanmugan, C Fields
Affiliations
Review

Information contents and dinucleotide compositions of plant intron sequences vary with evolutionary origin

O White et al. Plant Mol Biol. 1992 Sep.

Abstract

The DNA sequence composition of 526 dicot and 345 monocot intron sequences have been characterized using computational methods. Splice site information content and bulk intron and exon dinucleotide composition were determined. Positions 4 and 5 of 5' splice sites contain different statistically significant levels of information in the two groups. Basal levels of information in introns are higher in dicots than in monocots. Two dinucleotide groups, WW (AA, AU, UA, UU) and SS (CC, CG, GC, GG) have significantly different frequencies in exons and introns of the two plant groups. These results suggest that the mechanisms of splice-site recognition and binding may differ between dicot and monocot plants.

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References

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