Comparative Analysis of Vertebrate Dystrophin Loci Indicate Intron Gigantism as a Common Feature

Table 1.

Genomic Organization of Dystrophin Genes

Organism Gene length (kb) Genome % CDS length CDS % Exon number Mean exon length Mean intron length Average exon length Average intron length
C. elegans 31 0.031 11,022 35.61 48 232.67 424.11 299.1 466.6
D. melanogaster 131 0.072 10,491 8.03 35 314.29 3,536.38 423.3 563.9
F. rubripes 165 0.040 10,926 6.63 82 133.24 1,900.70 n.d. a79.0
M. musculus 2,256 0.065 11,034 0.49 79 174.85 27,488.59 156.3 1,321.4
H. sapiens 2,155 0.063 11,055 0.51 79 176.57 27,160.21 152.7 3,413.4
  • Mean intron and exon lengths refer to mean values in the dystrophin gene; average lengths represent mean values on available genes. Average exon and intron lengths for Drosophila, C. elegans, mouse and human had been previously reported (Deutsch and Long 1999). All lengths are expressed in bp except for gene lengths, expressed in kb. n.d.: not determined; a: this value was derived from a modal distribution and thus it represents a moda and not a mean; intron length distribution in Fugu displays 75% of introns <425 bp (in humans 75% of introns are <2609 bp) (Aparicio et al. 2002).

This Article

  1. Genome Res. 13: 764-772

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