Table 1.
Ancestor | Ancestral mean intron length (bp) | Introns/CDS kbp | Introns/gene | Source intron densities |
---|---|---|---|---|
LECA | – | 4.3 | 6.11 | Csűrös et al. 2011 [26] |
Uropisthokonta | 328 | 5.1 | 7.25 | Csűrös et al. 2011 [26] |
Urholozoa | 481 | 5.52 | 7.86 | Grau-Bové et al. 2017 [27] |
Urichthyosporea (Chromosphaera, Creolimax, Sphaeroforma) | 263 | 5.53 | 7.86 | Grau-Bové et al. 2017 [27] |
Urichthyophonida (Creolimax, Sphaeroforma) | 393 | 6.98 | 9.92 | Grau-Bové et al. 2017 [27] |
Urmetazoa (animals) | 845 | 8.8/8.7 | 12.51/12.37 | Csűrös et al. 2011 [26]/Grau-Bové et al. 2017 [27] |
Urporifera (sponges) | 451 | 8.63 | 12.27 | Grau-Bové et al. 2017 [27] |
Urcnidaria | 1016 | 8.3 | 11.80 | Csűrös et al. 2011 [26] |
Urbilateria | 1342 | 7.7/7.7 | 10.94/10.94 | Csűrös et al. 2011 [26]/Grau-Bové et al. 2017 [27] |
Urprotostomia | 891 | 7.4 | 10.52 | Csűrös et al. 2011 [26] |
Urecdysozoa | 623 | 7.4 | 10.52 | Csűrös et al. 2011 [26] |
Urdeuterostomia | 1710 | 7.7 | 10.94 | Csűrös et al. 2011 [26] |
Urvertebrata | 3117 | 7.2 | 10.23 | Csűrös et al. 2011 [26] |
Urembryophyta (land plants) | 313 | 6.4 | 9.10 | Csűrös et al. 2011 [26] |
Urchlorophyta (all unicellular/colonial green algae) | 299 | 3.4 | 4.83 | Csűrös et al. 2011 [26] |
Trebouxiophyceae + Chlorophyceae (Chlorella, Volvox, Chlamydomonas) | – | 6.2 | 8.82 | Csűrös et al. 2011 [26] |
Mean intron lengths estimated from phylogenetically independent comparisons of descendant species (see “Methods”; Additional file 1: Figure S24). Intron densities (taken from [26, 27]) are reported as introns/CDS kbp and introns/gene (by multiplying by the average CDS length [1422 kbp] of all organisms in our dataset; Additional file 1: Figures S1 and S2)