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A Review of TribeCode by Centrillion Biosciences

aSN0QmAV_400x400TribeCode (www.TribeCode.com) is a relatively new direct-to-consumer genetic genealogy testing company, officially launching in the fall of 2014. The company is owned by Centrillion Biosciences, headquartered in Palo Alto, California. The TribeCode test, currently offered for $99, offers Y-DNA, mtDNA, and atDNA analysis.

The ISOGG wiki page about TribeCode offers some information about the test, gleaned mostly from Facebook postings by the company. For example, the test apparently uses an Illumina low-coverage sequencing technology and tests at least 12 million markers throughout the genome. More exact details of the sequencing aren’t yet found on the TribeCode website.

Around Thanksgiving of 2014 I ordered the test on sale from approximately $79, and received my results a couple of months later.

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Creating DNA Circles – Exploring the Use of “Genetic Networks” in Genetic Genealogy

I recently forced the creation of a DNA Circle at AncestryDNA by target testing a descendant of a common ancestor. This blog post offers some information about how I did it, and some of my reasoning for doing so.

AncestryDNA’s DNA Circles

AncestryDNA offers a tool called DNA Circles, which is a group of at least three individuals that share a common ancestor in their public family tree at Ancestry, and each member shares DNA identical-by-descent with at least one other person in the circle.

According to AncestryDNA, a DNA Circle “open[s] the possibility for AncestryDNA members to identify distant relatives with whom they do not share DNA IBD directly, but with whom they still have genetic evidence supporting their relationship.” Instead of relying on just triangulation, DNA Circles rely on the concept of a Genetic Network.

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The Shared cM Project – An Update

As you might recall, a few months ago I sent out a call (“Collecting Sharing Information for Known Relationships“) for information about the amount of DNA shared by people having a known genealogical relationship. I was hoping to get a better picture of the ranges of the amount of DNA shared by people in these relationships (through about the third cousin range). The incredibly generous genetic genealogy community responded by submitting data bout more than 6,000 relationships!

I posted information a few weeks ago (“Collecting Sharing Information for Known Relationships – Part II“), but today I have an update.

This data is shared under a Attribution-NonCommercial-ShareAlike CC license. You are free to share and use the information for non-commercial purposes, as long as you give proper attribution and release anything you create under the same license.

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Don’t Miss Early Bird Pricing for the 2015 New York State Family History Conference!

NOTE: Early bird pricing ends May 31st!

Register HERE!

 

2015 NYSFHC LogoIf you’ve researched (or need to research!) in New York, if you’re interested in DNA, or really if you’re interested in genealogy in general, won’t want to miss the 2015 New York State Family History Conference being held in Syracuse, New York on September 17-19, 2015!

The Second New York State Family History conference is a collaboration between the Central New York Genealogical Society and the New York Genealogical and Biographical Society, and is one of the Federation of Genealogical Societies’ regional conferences.

The 2015 NYSFHC Conference will be three days long and consist of three simultaneous lecture tracks and even more exhibitors than last year! The Federation of Genealogical Societies is sponsoring the first day of the conference. At present, other conference sponsors include the Capital District Genealogical SocietyFamilySearchfindmypast.com, the New England Historic Genealogical Society, the New York State Library and Archives and the William G. Pomeroy Foundation.

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Announcing the 2nd Annual Heritage Books Genealogy Conference and Cruise!

HBCruiseHeritage Books, a leader in the world of genealogy publication for four decades, announces the 2nd Annual Heritage Books Genealogy Conference and Cruise, departing from Ft. Lauderdale, Florida on October 18, 2015 and returning on October 28th!

Interested in DNA?

This year’s cruise is focused on using the newest tool for your genealogical research, DNA testing. Are you a DNA newbie? No problem, with more than 20 different genetic genealogy presentations, this conference will take you all the way from complete novice to an intermediate user ready to add DNA to your genealogy toolbox. Are you well-versed in genetic genealogy? Come and learn the latest tips and tricks to enhance your DNA knowledge.

In addition to a full slate of presentations, one-on-one consultations, and several group sessions, conference attendees and passengers will have plenty of time to enjoy the sights, sounds, and flavors of the Caribbean as the Coral Princess makes stops in the topical destinations of Aruba, Cartagena, Grand Cayman, and even makes a partial transit of the unparalleled Panama Canal. You can find the full schedule for this amazing trip here.

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Are There Any Absolutes in Genetic Genealogy?

I’ve recently noted a trend among genealogists to discount unexpected (or unwanted?) DNA test results in order to make the results fit an existing hypothesis, instead of properly re-evaluating the hypothesis in light of the new DNA evidence. (This is NOT made in reference to any specific person, post, or question; it is rather something I’ve been mulling over for some time).

Let’s take third cousins as an example. According to Family Tree DNA’s FAQ, you will share detectable DNA with approximately 90% of your third cousins under FTDNA’s threshold. According to AncestryDNA’s help page (see “Should other family members get tested?”), you will share detectable DNA with 98% of your third cousins under AncestryDNA’s threshold. In other words, if you have 100 third cousins and they all get tested (how’d you do that?), you will share DNA with 98 of them.

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Collecting Sharing Information for Known Relationships – Part II

As you might recall, a few weeks ago I sent out a call for information about the amount of DNA shared by people having a known genealogical relationship. I was hoping to get a better picture of the ranges of the amount of DNA shared by people in these relationships (through about the third cousin range). Although people like Tim Janzen have gathered this type of data and so kindly made it available for everyone, I felt like more data was needed.

What is the range of cMs shared by third cousins? What does the distribution within that range look like? Does the longest segment factor into that at all? If so, how?

These are the types of questions I wanted to examine. And to entice submissions, I offered a free Family Finder kit to one lucky person that submitted data prior to April 1, 2015.

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