Fig. 2
From: De-novo emergence of SINE retroposons during the early evolution of passerine birds
Passerine SINEs share a common ancestor and are mobilized by CR1-X. a Maximum likelihood phylogeny of passerine SINE tails and avian CR1 subfamilies in Repbase [58] (GTRCAT model, 1000 bootstrap replicates) suggests that TguSINE1 and PittSINE arose from the same CR1-X subfamily (CR1-X1_Pass) and share a common SINE ancestor. Note that the topology of the CR1 phylogeny is identical to that of previous studies [20, 32]. b Comparison of the TguSINE1 landscape with landscapes of CR1 families (merged subfamilies from panel A) suggests temporal overlap of TguSINE1 and CR1-X activity in the zebra finch genome. RE landscapes were generated using the zebra finch assembly taeGut2 following methods detailed elsewhere [32]