Table 2.
Terminal branch lengths with four-cluster analysis
| Taxon | GenBank accession no. | Branch length |
|---|---|---|
| Cephalodiscus gracilus | AF236798 | 0.2063 |
| Oikopleura species 1 | D14360 | 0.1947 |
| Oikopleura species 2 | AB013015 | 0.1895 |
| Oikopleura dioica | AB013014 | 0.1881 |
| Stichopus japonicus | D14364 | 0.1735 |
| Herdmania curvata | AF165827 | 0.1555 |
| Molgula oculata | L12432 | 0.1449 |
| Saccoglossus species | AF236800 | 0.1442 |
| Doliolum nationalis | AB013012 | 0.1431 |
| ≤0.1400 | ||
| Saccoglossus kowalevskii | L28054 | 0.1314 |
| Harrimania species | AF236799 | 0.1313 |
| Thalia democratica | D14366 | 0.1267 |
| ≤0.1200 | ||
| Styela plicata | M97577 | 0.1200 |
| Halocynthia roretzi | AB013016 | 0.1199 |
| Homo sapiens | M10098 | 0.1176 |
| Rattus norvegicus | K01593 | 0.1119 |
| Petromyzon marinus | M97575 | 0.1052 |
| ≤0.1000 | ||
| Phallusia mammillata | AF236803 | 0.0964 |
| Branchiostoma floridae | M97571 | 0.0959 |
| Strongylocentrotus purpuratus | L28056 | 0.0934 |
| Ophioplocus japonicus | D14361 | 0.0887 |
| Asterias amurensis | D14358 | 0.0887 |
| Ciona intestinalis | AB013017 | 0.0874 |
| Ascidia ceratodes | L12378 | 0.0862 |
| Pyrosoma atlanticum | AB013011 | 0.0847 |
| Balanoglossus carnosus | D14359 | 0.0684 |
| Antedon serrata | D14357 | 0.0646 |
| Ptychodera bahamensis | AF236802 | 0.0518 |
The length of the terminal branch leading to each deuterostome sequence was calculated in turn with four-cluster analysis (phyltest 2.0; 40) by using Anemonia sulcata, Tenebrio molitor, and Nephtys hombergii as reference taxa.