PoInTree: A polar and interactive phylogenetic tree

Carreras Marco, Gianti Eleonora, Sartori Luca, Plyte Simon Edward, Isacchi Antonella, Bosotti Roberta

Research output: Contribution to journalArticlepeer-review


PoInTree (Polar and Interactive Tree) is an application that allows to build, visualize, and customize phylogenetic trees in a polar, interactive, and highly flexible view. It takes as input a FASTA file or multiple alignment formats. Phylogenetic tree calculation is based on a sequence distance method and utilizes the Neighbor Joining (NJ) algorithm. It also allows displaying precalculated trees of the major protein families based on Pfam classification. In PoInTree, nodes can be dynamically opened and closed and distances between genes are graphically represented. Tree root can be centered on a selected leaf. Text search mechanism, color-coding and labeling display are integrated. The visualizer can be connected to an Oracle database containing information on sequences and other biological data, helping to guide their interpretation within a given protein family across multiple species. The application is written in Borland Delphi and based on VCL Teechart Pro 6 graphical component (Steema software).

Original languageEnglish
Pages (from-to)58-60
Number of pages3
JournalGenomics, Proteomics and Bioinformatics
Issue number1
Publication statusPublished - Feb 2005


  • Phylogenetic tree
  • Tree builder
  • Tree visualizer

ASJC Scopus subject areas

  • Genetics
  • Biochemistry
  • Molecular Biology


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