Sister group

A sister group or sister taxon is a term used to describe the closest relatives of an organism (or other taxon) in a phylogenetic tree.^[1] It is a term in cladistics.

	A

	B

C

The sister group of organism A is B. The sister group of the clade B+A, is C.

References

↑ Eernisse, D.J. "Introduction to phylogeny: what is a sister taxon?". Biology 404 - Evolution. Department of Biological Science, California State University, Fullerton. Archived from the original on 24 September 2018. Retrieved 4 January 2012.

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[Fullerton-1] Eernisse, D.J. "Introduction to phylogeny: what is a sister taxon?". Biology 404 - Evolution. Department of Biological Science, California State University, Fullerton. Archived from the original on 24 September 2018. Retrieved 4 January 2012.

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