Fig. 2

Phylogenetic tree based on 16S rRNA gene sequence and showing the relationship between Arthrobacter sp. NFH5 with other selected members of Arthrobacter sp. The phylogenetic tree was deduced by using the Neighbor-Joining method (Saitou and Nei 1987) and this finest tree is consisted with the total branch length of 19.36227215. The bootstrap test was conducted using 1000 replications and has been shown next to the branches (Felsenstein 1985). The same units such as length have been used throughout the phylogenetic tree. Maximum Composite Likelihood method and base substitution’s unit number was used to compute the evolutionary distances (Tamura et al. 2004). The study involved 17 nucleotide sequences. Codon positions comprised were 1st + 2nd + 3rd + noncoding. Entire locations enclosing gaps and missing data were removed. There were a total of 1438 positions in the final dataset