Table 1.
The Top Five Lineage-Specific Gene Family Expansions in Five Eukaryotes
| Rank | Saccharomyces serevisiae | Schizosaccharomyces pombe | Drosophila melanogaster | Caenorhabditis elegans | Arabidopsis thaliana b | ||||||
| LSC name/function | N | LSC name/function | N | LSC name/function | N | LSC name/function | N | LSC name/function | N | ||
| 1 | Uncharacterized Ecm34p-like proteins | 25 | Wtf family of non-globular proteins | 20 | Trypsin-like serine proteases | 178 | 7 TM Odorant receptors (two distinct clusters) | 264, 228 | Plant-specific kinases | 316 | |
| 2 | Hexose transporters | 15 | Mayor Facilitator Superfamily transporter | 13 | Insect cuticle proteins | 88 | Uncharacterized proteins containing a nematode-specific domain | 182 | Plant-specific, F-box containing proteins | 251 | |
| 3 | Amino acid permeases | 14 | Ser/Thr repeat-containing non-globular proteins | 11 | Cytochrome P450 family hydroxylases | 83 | Integral membrane O-acetyl/Acyl transferases | 151 | Extracellular domains often associated with kinases | 221 | |
| 4 | Cell wall | 11 | Alpha-amylases | 11 | C4DM + | 82 | 7 TM receptors | 122 | PPR module | 194, | |
| glycoproteins | Zn-finger | proteins (two distinct dusters) | 195 | ||||||||
| 5 | Cell wall mannoproteins | 11 | Gal4-like fungal C6 finger | 8 | POZ-containing transcription factor Odorant receptors | 55 55 | C-type lectins (secreted proteins) | 115 | Apoptotic (AP)-ATPases | 150 | |
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↵Number of members in the LSC.
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A family of 171 transposons, with mutator elements, was not included.
