Resources about the X-Chromosome

[KATM]

To start off this X-DNA Basics forum, here are some links to webpages with information about X-DNA and its inheritance. Many can be found on the ISOGG Wiki, and other sites. I picked them out to put them here for easy reference in one post.

Learn about the X-Chromosome

• A nice animation explaining X Chromosome DNA, from the Sorenson Molecular Genealogy Foundation (SMGF)
• From DNAexplained, by Roberta Estes: X Marks the Spot

Files from Dr. David K. Faux on X Chromosome (these are from 2008-2009; some links within the .pdfs may be outdated), basic and more advanced information about the X Chromosome:

• FACTS AND OBSERVATIONS IN RELATION TO THE X CHROMOSOME: MISCELLANEOUS MATERIAL RELATING TO ANCESTRY GLEANED FROM THE RESOURCES HERE ("HERE" meaning his X_CHROMOSOME_Haploblock_Resources.pdf, next bullet)
• RESOURCES / LITERATURE CONCERNING the X CHROMOSOME: SNPs, STRs, HAPLOBLOCKS & ANCESTRY by David K. Faux (2009)
• X Inheritance chart, with percentages

Charts

• From Jim Turner, four charts showing X chromosome inheritance, for women and men (pedigree-style, not fan); also a link to a chart showing X ancestor percentages by generation

There are links in some of the articles above that lead to Blaine Bettinger's fan charts for X inheritance, but here are the two pages on which they appear:

• Unlocking the Genealogical Secrets of the X Chromosome - one for male inheritance, and one for female inheritance
• More X-Chromosome Charts - including charts with Ahnentafel numbers, percentages, and a link to Ann Turner's text file

Other charts:

• A blank fan chart that you can download, print out, and use to fill in your own family's X inheritance, basing it on the inheritance patterns shown in Blaine Bettinger's charts (it's the file named "pedigree fan chart" on this page)
• Debbie Parker Wayne's X-DNA Inheritance Charts - These are in Microsoft Word table format, if you prefer this format vs. a fan chart
• Sue Griffith's modified Microsoft Word charts, based on Debbie Parker Wayne's X-DNA Inheritance Charts

Phasing with the X-Chromosome
(Phasing = finding out which segments of DNA came from the mother or father)

• ISOGG Wiki - Phasing - Information about phasing, on autosomal or X-chromosome DNA
• 'Satiable Curiosity: Going Through a Phase: Haplotyping the Female X Chromosomes, by Ann Turner
• The Lineal Arboretum: Phasing the X-Chromosome - Jim Owston's article showing how he used X-chromosome phasing in his family genealogy
• Katie and Julie's journey thru the X - Two friends illustrate how they used X-chromosomes to find out more about their ancestry

That's all I've got right now! Hope it helps someone.