{% extends "base_template.html" %} {% load staticfiles %} {% block title %}OMA orthology database: Types of orthologous groupings{% endblock %} {% block meta_description %}The OMA database provides several destinct types of groupings to the users. The appropriate grouping depends on the application of the user.{% endblock %} {% block content %}
In OMA, we infer and provide several sub-types of orthologs: pairwise orthologs, Hierarchical Orthologous Groups (HOGs), and OMA Groups . It is important to understand how these three categories of orthologs are different in order to choose the appropriate type for your analysis. The differences between the three sub-types of orthologs reported in OMA are all based on one main factor: how they are inferred. In the OMA algorithm, the pairwise orthologs are inferred first, and are then used to build the HOGs and OMA Groups.