In the Megalocytivirus cluster, the phylogenetic tree of amino acid sequences is similar to the one based on nucleotide sequences, consisting of three groups; however, all of the isolated strains that were related to ranaviruses from fish were clustered in groupV.
To overcome this problem, many clinicians have turned to sequence-based molecular typing methods, which assign viral genotypes based on nucleotide sequences; such techniques are more successful at resolving EV isolates to the corresponding genotype, and also provide rapid diagnosis [ 3].
Primers specific for PMeV were designed based on nucleotide sequences of the viral dsRNA obtained using a RT-RAPD approach.
Figure 1: Bayesian phylogenetic analyses based on nucleotide sequences of the complete GP, NP, L and Z segments of LASVs showing the placement of the virus strains isolated in this study in comparison to other sequences representing the members of LASV lineages I V.
Genetic variation and differentiation were estimated, and phylogenetic and network relationships were constructed based on nucleotide sequences from the mitochondrial genome for the diploid members of the complex, and from chloroplast and nuclear genomes for both the diploid and tetraploid members.
These primers were designed based on nucleotide sequences and intron positions obtained from the DDBJ (http://www.ddbj.nig.ac.jp/).
Bisulfite-sequencing was based on nucleotide sequences in electropherograms.
IPI-O3-related variants represent class II and the remaining IPI-O sequences represent class I. Clustering based on nucleotide sequences yielded similar results.
In conclusion, our approach to Neanderthal variability, based on nucleotide sequences analysis, confirms from a genetic point of view the morphological variations between western and eastern Neanderthals and the existence of a southern group (fig. 2).
Thermal cycling conditions consisted of a hot start cycle of 94°C for 3 min, followed by 35 cycles with: 1 min at 94°C, 1 min at 50 to 65°C (depending on the primers), 1 to 5 min at 72°C (depending on the expected amplicon size) and a final step at 72°C for 10 min. The expected sizes of the PCR products were based on nucleotide sequences present in GenBank under accession number AF261825.
These analyses were based on nucleotide sequences.
