Table 1 Summary of repeat content in the placozoan and other metazoan genomes.
From: Genome-wide analysis of transposable elements and tandem repeats in the compact placozoan genome
| Â | Placozoan (T. adhaerens) | Nematode (C. elegans) | Arthropod (D. melanogaster) | Chordate (T. nigroviridis) | Chordate (H. sapiens) |
|---|---|---|---|---|---|
Genome size (Mb) | 104 | 97 | 180 | 340 | 3,200 |
Gene no. | ~11,500 | ~19,000 | ~13,600 | ~22,400 | ~31,000 |
Transposable element (TE) | 0.13% | 6.5% | 3.1% | 0.9% | 44.4% |
   LTR retrotransposon | 0.04% | 0.0% | 1.5% | 0.1% | 8.1% |
   Non-LTR retrotransposon | 0.003% | 0.4% | 0.7% | 0.8% | 33.4% |
   DNA transposon | 0.09% | 5.3% | 0.7% | 0.0% | 2.8% |
   Active TE | None | Yes | Yes | Yes | Yes |
Tandem repeat | 2.7% | 2.7% | 3% | 4.5% | 3% |
   Microsatellite | 0.2% | 0.2% | 0.5% | 3.2% | 1.5% |
   Major SSR motif | ACAGT | AG | AC | A | AC |
   Minisatellite/Satellite | 2.4% | 2.5% | 2.5% | 1.3% | 1.5% |
Reference | [1] | [25] |