Table 2. Alternatively spliced SR genes.
| Organism | Genes with AS | Total genes | Fraction |
| Glycine max | 17 | 25 | 0.65 |
| Populus trichocarpa | 8 | 20 | 0.40 |
| Arabidopsis thaliana | 16 | 18 | 0.84 |
| Vitis vinifera | 6 | 9 | 0.66 |
| Zea mays | 21 | 22 | 0.95 |
| Sorghum bicolor | 11 | 19 | 0.55 |
| Oryza sativa | 20 | 22 | 0.83 |
| Physcomitrella patens | 8 | 10 | 0.62 |
| Chlamydomonas reinhardtii | 2 | 5 | 0.29 |
| Danio rerio | 12 | 14 | 0.86 |
| Xenopus tropicalis | 9 | 11 | 0.82 |
| Gallus gallus | 7 | 10 | 0.70 |
| Mus musculus | 10 | 11 | 0.91 |
| Homo sapiens | 11 | 12 | 0.92 |
| Ciona intestinalis | 7 | 8 | 0.88 |
| Branchiostoma floridae | 9 | 11 | 0.82 |
| Caenorhabditis elegans | 6 | 7 | 0.86 |
| Anopeheles gambiae | 5 | 6 | 0.83 |
| Drosophila melanogaster | 3 | 7 | 0.43 |
| Aedes aegypti | 1 | 6 | 0.17 |
This table contains the non-normalized AS counts from our AS pipeline. Organisms are listed according to their phylogenetic grouping. Though members of the SR45 sub-family were not included in our final gene-tree analyses, we nevertheless analyzed these genes for AS.