Phylogenetic position of the langur genera Semnopithecus and Trachypithecus among Asian colobines, and genus affiliations of their species groups
2008

Phylogenetic Relationships of Langur Genera in Asia

Sample size: 8 publication Evidence: moderate

Author Information

Author(s): Osterholz Martin, Walter Lutz, Roos Christian

Primary Institution: German Primate Center

Hypothesis

What are the phylogenetic relationships among the langur genera Semnopithecus and Trachypithecus and their species groups?

Conclusion

The study found that mitochondrial sequence data could not resolve the relationships among langur genera, but retroposon integrations confirmed a common origin of Semnopithecus and Trachypithecus.

Supporting Evidence

  • The study confirmed the monophyly of the odd-nosed monkeys.
  • Five retroposon integrations were detected linking Trachypithecus and Semnopithecus.
  • Y chromosomal data supported a common origin of certain Trachypithecus species groups.

Takeaway

Scientists studied different types of DNA from langurs to understand how they are related, and found that some species are more closely related than previously thought.

Methodology

The study used mitochondrial and Y chromosomal sequence data along with retroposon integration analysis to determine phylogenetic relationships.

Limitations

The mitochondrial data failed to resolve the affiliations among the langur genera.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2148-8-58

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