| More docs on the ARB website. See also index of helppages. Last update on 14. Feb 2019 .

Main topics:

- ARB: a Short Introduction
- Glossary

Related topics:

- Extract genes to gene-species
- Marking Gene-species
- What are Organisms?
- Define fields exported with gene species

# What are Gene-species?

- DESCRIPTION
- NOTES
- EXAMPLES
- WARNINGS
- BUGS

## DESCRIPTION

### In order to work with alignments of genes you first have to extract the wanted genes into some kind of pseudo-species. We called them 'gene-species'.

### These gene-species store additional information about the organism and the gene they originated from (ARB_origin_gene and ARB_origin_organism). They only contain that part of the whole organism-sequence the gene corresponds to.

### The intention is to create different alignments for different groups of genes and to calculate your trees using these alignment(s).

## NOTES

### It's possible to export these gene-species to a separate ARB database using the merge tool.

## EXAMPLES

### None

## WARNINGS

### None

## BUGS

### No bugs known