Table 3.

Gene Amplification Within 2.9-Mb Region on Rice Chromosome 10

Length (bp)2,883,802
G+C%43.3%
ORFs426
TEs[i] 66
Genes (ORFs-TEs)360100%
Homologous to GenBank[ii] 225 62.5%
Homologous toArabidopsis [ii] 196 54.4%
Amplified genes15
8 with 2  copies
4 with 3  copies
1 with 5  copiesPutative transcription factor
1 with 27 copiesGlycine-rich protein
1 with 48 copiesTRAF/BTB-domain protein
Amplified gene copies93 25.8%
Gene density8.0 kb/gene
Genes/rice genome (total)∼49,000[iii]
Genes/rice genome  (without amplification)∼36,000
Genes/Arabidopsisgenome25,498

[i] TEs include retrotransposons and DNA transposons.

[ii] These are based on hits with an e-value less thane-5.

[iii] Estimation based on 390-Mb genome size exclusive of centromeres (http://demeter.bio.bnl.gov/Oct30.html).