Abundance, Distribution, and Transcriptional Activity of Repetitive Elements in the Maize Genome

Table 1.

BLAST Results of Small Insert Maize Library “cne1g”

Category Homology # of sequences % of total 95% C.I. Element type Size of element (LTR)
Retroelement-related sequences Ji 203 9.4 8.25–10.71 copia 8.3 kb (1.1 kb)
Opie 154 7.1 6.13–8.30 copia 9.0 kb (1.1 kb)
Prem-2 35 1.6 1.17–2.25 copia 9.4 kb (1.3 kb)
Victim 4 0.2 0.00–0.42 copia 5.4 kb (100 bp)
Fourf 8 0.4 0.09–0.70 copia 6.8 kb (1.1 kb)
Hopscotch 1 0.0 0.00–0.19 copia 4.8 kb (230 bp)
Huck 231 10.7 9.47–12.08 gypsy 11–12 kb (1.61 kb)
Grande1–4 85 3.9 3.20–4.85 gypsy 13.7 kb (600 bp)
Cinful 76 3.5 2.82–4.39 gypsy 8.5 kb (600 bp)
‘ANLI’ retro 67 3.1 2.45–3.93 gypsy Unknown
Tekay 26 1.2 0.82–1.76 gypsy 12 kb (3.2 kb)
Milt 15 0.7 0.42–1.14 gypsy 4.7 kb (700 bp)
Reina 0 0.0 0.00–0.14 gypsy 5.4 kb (300 bp)
Magellan 0 0.0 0.00–0.14 gypsy 5.7 kb (340 bp)
Zeon-1 103 4.8 3.95–5.76 7.3 kb (650 bp)
Prem-1 53 2.5 1.88–3.20 LTR only Unknown (1–1.6)   
Cin1 11 0.5 0.19–0.84 LTR only Unknown (700 bp) 
Kake 4 0.2 0.00–0.42 5.9 kb (170 bp)
Other retrotransposons 151 7.0 6.00–8.16
LINEs 3 0.1 0.00–0.37
Unknown repeats Repeat–22kD zein region 92 4.3 3.49–5.20
Repeat–19 kD zein region 16 0.7 0.46–1.20
Repeat–unknown 196 9.1 7.95–10.37
Other dispersed repeats DNA transposons 26 1.2 0.82–1.76
MITEs 15 0.7 0.42–1.14
Tandemly repetitive sequences Knob repeats 42 1.9 1.44–2.62
Ribosomal DNA 39 1.8 1.33–2.46
Centromeric repeats 10 0.5 0.14–0.79
Other Chloroplast DNA 37 1.7 1.25–2.36
Similarity to genes 117 5.4 4.55–6.46
Unknown 337 15.6 14.15–17.22
  • C.I., 95% confidence interval for estimate of the percentage of the genome comprised by each class.

  • The size of the known retroelements and LTRs was determined from GenBank accessions.

This Article

  1. Genome Res. 11: 1660-1676

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