Figure 1

Phylogenetic relationships of T. adhaerens gypsy -like elements ( Ta1-11 ) and other elements from the gypsy group based on a Bayesian analysis of reverse transcriptase (RT) protein sequences. Posterior probability exceeding 0.90 are shown. The sequences of most elements are derived from the EMBL online database [EMBL:DS36733] [15], while the others are as follows: CsRn1 [GenBank:AAK07487], Gulliver [GenBank:AF243513], Fugitive [GenBank:BK005226] and Jule [GenBank:AF278691]. RT sequences were aligned using the ClustalW method [32]. The protein alignment is available in the additional file 3. Phylogenetic analysis was performed with the program MrBayes 3.1 [33]. The appropriate model of evolution was identified as WAG+G+I [34] using the MCMC model-jumping method. The MCMC chain was run for 1,000,000 generations with a sample frequency of 200. In total, 5000 trees were produced, of which the first 4500 were discarded as burn-in while summarizing the data.