Composition Vector Tree (CVTree) constructs phylogeny trees without alignment, using a composition vector (CV) approach. The new method is based on whole genome of organisms and it is developed to infer the evolutionary relatedness of microbial organisms first, and also successfully used in the classifications of chloroplast and coronavirus. It circumvents the ambiguity of choosing the genes for phylogenetic reconstruction and avoids the necessity of aligning sequences of essentially different length and gene content.

The current version of this web server allows users to select some prokaryotes from a list in the web page, and also deliver users own data sets. The function of selecting sequences from public databases, such as NCBI, EMBL et al., will be added in the future. For more details, click here...

There are four steps to get the result. You should begin from the first step - Choose existing proteomes from list.