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Glossary

ingroup

In phylogenetics or cladistics, the particular group under scrutiny in a study. Opposite of outgroup.

Related terms

cladistics
Taxonomical method used to classify species of organisms into clades, each of which contains an ancestor organism and all its descendants, based on synapomorphies (shared derived characters). Cladistic classifications are usually presented in the form of a cladogram.
outgroup
In phylogenetics, a group of organisms serving as a reference and comparison to the groups being studied. Opposite of ingroup.
phylogenetics
The study of evolutionary relatedness among species or other groups of organisms. May be based on morphology, molecular data, or both.

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