Fig. 1 Evolutionary distance dendrogram of Arthrobacter sp. KMSZP6 strain with sequences of the representative Arthrobacter strains from NCBI database (based on >1400 nucleotides of 16S rRNA).
The method of Jukes and Cantor [20] was used to calculate evolutionary distances and phylogenetic dendrograms were constructed by the neighbor-joining method using the MEGA4 package [21].
Dendrograms of evolutionary relations of the 5'-NCS were produced by several methods, including: cluster analysis using pairwise C LZ values; evolutionary trees of DIALIGN sequence alignments; and cladistic analysis of conserved blocks.
Modules currently in use or under development use software available online at the NCBI or the San Diego Super Computer Center's Biology Workbench sites and include protein modeling using Cn3D, sequence similarity searches using various BLAST programs, ORF Finder, CLUSTALW for multiple sequence comparisons, and Phylip for researching evolutionary relationships and generating dendrograms.
Analysis of the closeness (or distance) of the individual gene sequences to each other permits the generation of evolutionary branching patterns known as dendrograms, such as that illustrated in Fig. 5.
The dendrogram showing the putative evolutionary relationship of the fungal cyclophilins shows good agreement with the groups identified by BLAST analysis (Table 16A [See Additional File 1]), and it may also allow us to better understand the evolution of the eleven individual cyclophilins identified in four of the fungi.
Phylogenetic tree, also called Dendrogram, a diagram showing the evolutionary interrelations of a group of organisms derived from a common ancestral form.
An unrooted phylogenetic dendrogram was estimated from the evolutionary distance matrix of the pooled antibiotic alignment using the neighbor-joining method (Saitou and Nei 1987), and confidence was assessed by bootstrapping with 1,000 permutations.
The dendrogram in Figure 1 presents the evolutionary relationship between all strains of S. aureus.
From an evolutionary viewpoint and its position in sequence similarity dendrograms, GPR3 belongs to a subfamily of receptors in which both peptide and lipid receptors are found [47] and the lipid sphingosine 1-P has been proposed as a natural GPR3 agonist [10], [11].
