How Many Loci Does it Take to DNA Barcode a Crocus? Limitations of DNA Barcoding
2009

How Many Loci Does it Take to DNA Barcode a Crocus?

Sample size: 86 publication Evidence: moderate

Author Information

Author(s): Seberg Ole, Petersen Gitte

Primary Institution: Natural History Museum of Denmark, Copenhagen, Denmark

Hypothesis

How many genetic regions are needed to effectively identify Crocus species using DNA barcoding?

Conclusion

The study found that even with multiple genetic regions, identifying all Crocus species remains challenging.

Supporting Evidence

  • Six average-sized barcode regions do not identify all Crocus species.
  • The proposed barcode set is diagnostic for 73% of the included Crocus species.
  • Using the four most variable regions can identify 92% of Crocus species.

Takeaway

Scientists are trying to figure out how many parts of DNA they need to look at to tell different types of Crocus flowers apart, but it's not easy.

Methodology

The study analyzed DNA from 86 species of Crocus using multiple genetic regions to assess identification success.

Limitations

The study acknowledges that barcoding may not identify all species due to taxonomic complexities and the limitations of the chosen genetic regions.

Digital Object Identifier (DOI)

10.1371/journal.pone.0004598

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication