Table 1.
Evolution of the A. thaliana genome annotation from the initial A. thaliana sequencing project to the latest TAIR release
| Nature | TIGR1 | TIGR2 | TIGR3 | TIGR4 | TIGR5 | TAIR6 | TAIR7 | |
|---|---|---|---|---|---|---|---|---|
| Release date | 12/14/00 | 1/17/01 | 9/11/01 | 8/2/02 | 4/18/03 | 1/29/04 | 11/11/05 | 4/24/07 |
| Genome size (Mb) | 115.410 | 116.238 | 117.227 | 117.077 | 119.055 | 118.998 | 119.186 | 119.186 |
| Protein-coding genes | 25 498 | 25 554 | 26 156 | 27 117 | 27 170 | 26 207 | 26 541 | 26 819 |
| Transposons and pseudogenes | n/a | 1274 | 1305 | 1967 | 2218 | 3786 | 3818 | 3889 |
| Genes annotated with alternative splice-variants | n/a | 0 | 28 | 162 | 1267 | 2330 | 3159 | 3866 |
| Gene density (kb per gene) | 4.5 | 4.55 | 4.48 | 4.32 | 4.38 | 4.54 | 4.48 | 4.44 |
| Exons/gene model | 5.2 | 5.23 | 5.25 | 5.24 | 5.31 | 5.42 | 5.64 | 5.79 |
| Average exon length | 250 | 256 | 265 | 266 | 279 | 276 | 269 | 268 |
| Average intron length | 168 | 168 | 167 | 166 | 166 | 164 | 164 | 165 |
TIGR values from Haas et al. (5). Numbers of protein-coding genes do not include those present on mitochondrial and chloroplast genomes.