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Table 8 Analysis of density, average size and GC content of genes, exons and introns in putative heterochromatin and euchromatin of T. castaneum

From: Analysis of repetitive DNA distribution patterns in the Tribolium castaneum genome

  Heterochromatin Euchromatin Average in anchored genome
Length (Mb) 54.7 83.0 -
Percentage in anchored scaffolds 40 60 100
GC content (%) 32.4 35.1 34.0
Average gene size (kb) 6.5 5.0 5.5
Gene* size/MB (kb) 546 602 579
Number of genes/Mb 83 120 105
Gene GC content (%) 33.6 36.5 35.4
Average exon size (bp) 312 329 314
Exon* size/gene (bp) 1,272 1,501 1,429
Number of exons/gene 4.1 4.6 4.4
Number of exons/Mb 340 547 465
Exon GC content (%) 44.8 46.3 45.9
Average intron size (bp) 2,711 1,705 1,999
Intron* size/gene (bp) 5,238 3,694 4,180
Number of introns/gene 3.1 3.6 3.4
Number of introns/Mb 339 543 462
Intron GC content (%) 30.8 32.8 32.0
  1. *Genes, exons and introns from the GLEAN gene prediction data were used in this analysis.