La Méthode LEEDS pour séparer des correspondances ADN (matches)

La Méthode LEEDS pour séparer des correspondances ADN (matches)

The LEEDS Method to separate DNA matches

by Un brin d'ADN · View the channel on PSI

Life & Natural Systems Hobbies & Practical WLifestyle, Hobbies and LeisureWQYFamily history, tracing ancestors
🎙 Un brin d'ADN 👥 790 📅 January 20, 2024 ⏱ 13 min 👁 350 📄 tutorial 🧭 2026-10-09
Available in: English (current) Français

Keywords

Leeds methodDNA matchgenetic genealogyclusteringcentimorgan

Summary

The video is a tutorial on the Leeds method, a technique for grouping DNA matches into four clusters representing the four grandparental lineages. The author, a genetic genealogy enthusiast, explains the method’s origin, prerequisites, and step-by-step procedure using a spreadsheet. The method involves selecting matches between 90 and 400 centimorgans, then iteratively using shared matches to color-code groups. The video also discusses limitations, such as endogamy and low match numbers, and concludes with tips for analyzing family trees to identify ancestral lines.

82 words

Critical Evaluation

Value of the Information & Strength of the Argument

The information is valuable for beginners in genetic genealogy, providing a clear and practical approach to organizing DNA matches. The argumentation is solid, as the method is widely recognized and the presenter explains the reasoning behind thresholds and steps. The demonstration is logical and easy to follow, with concrete examples.

Scientific Rigor, Source Quality, Title Accuracy

The video relies on the authority of Dana Leeds, who invented the method, but provides no external references or links to scientific literature. The steps are consistent with standard practices in the genetic genealogy community. The title accurately reflects the content, as it promises a method to separate matches and delivers exactly that.

118 words

Title / Content Match

The title accurately describes the content: the video provides a detailed tutorial on the Leeds method for clustering DNA matches.

Quality & Reliability

7/10

The video explains a well-established method (Leeds method) created by Dana Leeds, with clear step-by-step instructions and appropriate caveats about limitations. The information is consistent with known practices in genetic genealogy, though it lacks peer-reviewed sources.

Chapters

Cited Sources

  • Dana Leeds (website) — Mentioned as the inventor of the Leeds method.

Contribution & Novelties

The video offers a concise and well-illustrated introduction to the Leeds method, making it accessible to novices. It highlights potential pitfalls and offers practical advice. However, the method is not original, being invented by Dana Leeds in 2018.

Pour aller plus loin:

  • Genetic genealogy — Overview of genetic genealogy and its applications.
  • CentiMorgan — Unit used to measure genetic distances in DNA matching.
  • Leeds method — The original method described by Dana Leeds; can be found on her website or genealogy blogs.

82 words

Radar Profile

The radar profile shows high scores in information quantity and quality, indicating a well-structured tutorial. Technical level is moderate, suitable for beginners. Global reliability is solid due to the use of a trusted method.

Reliability 7/10