
RNA interference genes in platypus. Phylogenetic trees of EIF2C (A) and PIWI (B) families in multiple vertebrate species. The platypus PIWIL4 (oanPIWIL4) sequence was incomplete, and a partial coding sequence was used to place this gene on the tree (broken line) (Supplemental Table 2). Platypus genes are highlighted in red. Scale: 0.1 = 0.1 base substitutions expected. (oan) Ornithorhynchus anatinus; (cfa) Canis familiaris; (hsa) Homo sapiens; (mmu) Mus musculus; (rno) Rattus norvegicus; (mdo) Monodelphis domesctica; (gga) Gallus gallus; (xtr) Xenopus tropicalis; (dre) Danio rerio.











