Table 2 Summary statistics for TIGR Arabidopsis annotation releases.
From: Complete reannotation of the Arabidopsis genome: methods, tools, protocols and the final release
| Â | Nature (12/00) | Release 1 (8/01) | Release 2 (1/02) | Release 3 (8/02) | Release 4 (4/03) | Release 5 (1/04) |
|---|---|---|---|---|---|---|
Genome size (Mb) | 115.410 | 116.238 | 117.227 | 117.077 | 119.055 | 118.998 |
protein-coding genes | 25,498 | 25,554 | 26,156 | 27,117 | 27,170 | 26,207 |
transposons and pseudogenes | NA | 1,274 | 1,305 | 1,967 | 2,218 | 3,786 |
Genes annotated as alternatively spliced | NA | 0 | 28 | 162 | 1,267 | 2,330 |
genes with UTRs | NA | 4,140 | 10,219 | 11,691 | 17,060 | 18,099 |
Protein-coding genes similar to transposon ORFsa | NA | 487 | 485 | 528 | 531 | 6 |
gene density (kb per gene) | 4.5 | 4.55 | 4.48 | 4.32 | 4.38 | 4.54 |
exons / gene | 5.2 | 5.23 | 5.25 | 5.24 | 5.31 | 5.42 |
average exon length (bp) | 250 | 256 | 265 | 266 | 279 | 276 |
average intron length (bp) | 168 | 168 | 167 | 166 | 166 | 164 |
Gene structures altered since previous release. (u,a,d,m,s) | NA | - | u: 2,853 a: 690 d: 231 m: 14 s: 167 | u:1,366 a: 1,906 d: 221 m: 62 s: 14 | u: 2,347 a: 527 d: 143 m: 153 s: 24 | u: 2,858 a: 1,393 d: 730 m: 169 s: 28 |