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Ancestry Set to Expand DNA Circles

AncestryDNAIn a press release – and blogger meetup – from Ancestry.com today (see “Ancestry Announces 2015 Product and Content Lineup“), AncestryDNA announced plans for the test in 2015, which includes launching the test in Australia and Canada, as well as a new way to identify ancestors using only DNA.

From Today’s Press Release:

Continued Growth for AncestryDNA

  • With a database of over 700,000 genotyped members, AncestryDNA has generated over one billion cousin connections to date. In 2015, we project this database to grow to exceed well over one million genotyped members, resulting in even more and higher quality cousin matches.
  • Following the successful launch of AncestryDNA in the UK, we will soon be bringing the service to our members in Australia and Canada, and in doing so, will connect the major English-speaking migrations and globally connect families like never before.
  • Building on DNA Circles, in 2015 we will launch a new experience that will use the latest genetic technology to discover new ancestors without the customer having to search records or build a family tree. This new feature will transform how family history research is done by providing valuable hints to help experienced genealogist looking to break through brick walls, as well as open family history to a whole new segment of the population. Through this new experience, AncestryDNA customers will be able to discover new ancestors as far back as the 1700’s by connecting into existing DNA Circles.

DNA Circles Without Family Trees

On the last point, in the coming weeks AncestryDNA will launch an extension of the DNA Circles tool in which they assign you to a DNA Circle without having a family tree connection.

Currently, you must have a decent public tree in order to be put into a DNA Circle based on genealogical relationships. Using this new tool, however, you will (potentially) be put into circles without a tree showing that you belong to the circle (in other words, based only on genetic relationships regardless of the trees).

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6

How Do DNA Segments Get Smaller?

Many genetic genealogists, myself included, often talk about DNA segments getting “broken up” or “broken down” as they are passed from one generation to the next. But this language can be misleading, since DNA isn’t really “broken up” into pieces when it passed down; instead, a few pieces are traded between nonsister chromosomes in a process called RECOMBINATION.

Genetic recombination is a process of crossover between chromosomes during MEIOSIS (meiosis = a very specialized cell division that creates eggs and sperm for reproduction). Very early in meiosis, the cells duplicate the chromosomes. Normally, every cell has 23 pairs of chromosomes, for a total of 46 chromosomes. However, in the first step of meiosis, the chromosomes are duplicated to result in a total of 92 chromosomes. There are 4 copies of chromosome 1 (2 copies of the chromosome you got from your mother, and 2 copies of the chromosome you got from your father). There are 4 copies of chromosome 2, and so on.

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0

The Most Read Posts of 2014

Inspired by other end-of-year posts by Denise Levenick, Judy Russell,Roberta Estes, and others, here are my Top Five Posts in 2014. This year was a turning point for genetic genealogy as it finally switched from a cottage industry to a widely accepted commercial enterprise. I can only imagine what 2015 will bring.

Here are the top 5 visited posts, ranked from highest to lowest:

1.  “A Review of AncestryDNA – Ancestry.com’s New Autosomal DNA Test” – this post from 2012 has received more comments than perhaps any other post on the blog.

2. “What Else Can I Do With My DNA Test Results?” – an extensive list of both free and paid third-party options for your DNA test results.

3. “Unlocking the Genealogical Secrets of the X Chromosome” – year after year this post is always one of the most viewed from the blog.

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10

Small Matching Segments – Examining Hypotheses

Last week I published “Small Matching Segments – Friend or Foe?” to join in the community’s conversation about the use of “small” segments of DNA, referring to segments 5 cM and smaller (although keep in mind that the term “small,” without a more specific definition, will mean different things to different people).

The question that the community has been struggling with is whether small segments of DNA can be used as genealogical evidence, and if so, how they can be used.

As I wrote in my post, a significant percentage of small segments are false positives, with the number at least 33% and likely much higher. In my examination and in the Durand paper I discuss, a false positive is defined as a small segment that is not shared between a child and at least one of the parents.

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29

Small Matching Segments – Friend or Foe?

There has been a great deal of conversation in the genetic genealogy community over the past couple of weeks about the use of “small” segments of matching DNA. Typically, the term “small” refers to segments of 5 cM and smaller, although some people include segments of 7 cM or even 10 cM and smaller in the definition.

The question, essentially, is whether small segments of DNA can be used as genealogical evidence, and if so, how they can be used.

While it may seem at first that all shared segments of DNA could constitute genealogical evidence, unfortunately some small segments are IBS, creating “false positive” matches for reasons other than recent ancestry. These segments sometimes match because of lack of phasing, phasing errors, or a variety of other reasons. One thing, however, is clear: there is no debate in the genetic genealogy community that many small segments are false positive matches. There IS debate, however, regarding the rate of false positive matches, and what that means for the use of small segments as genealogical evidence.

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1

Bridging the Gap Between Traditional Genealogy and Genetic Genealogy at the NYG&B

logo.png  670×83I am incredibly honored to announce my election to the Board of Trustees of the New York Genealogical & Biographical Society! The NYG&B is the largest and oldest genealogical society in New York State, and the second oldest genealogical society in the nation. As a lifelong genealogist with New York roots dating back almost 250 years, joining the NYG&B is a dream come true for me.

Over the past decade, DNA has become a powerful tool for genealogical research. As a member of the NYG&B’s Board of Trustees, I hope to be able to help bridge the (ever-closing) gap between traditional genealogy and genetic genealogy, and help both members and non-members understand and incorporate DNA into their family histories.

The board represents an incredible group of people dedicated to helping people discovery their family histories, and I am so grateful to be able to join them. The full list is below.

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5

Announcing the Virtual Institute of Genealogical Research (VIGR)

header-logo2The latest announcement by the newly founded Virtual Institute of Genealogical Research (VIGR) is bound to excite genealogists looking to further their knowledge, as well as those with with limited time or resources to attend courses in person.

VIGR will offer courses on a comprehensive list of genealogical subjects, giving genealogists access to a great curriculum year-round through the VIGR virtual platform. I’m proud to announce that I will be a speaker for the VIGR, and I look forward to interacting with the online genealogical community though my course on autosomal DNA. I am honored to be listed among the incredible speakers below.

No fewer than nine upcoming courses are already listed on the VIGR official website, the earliest commencing in November this year. Each will consist of a total of four 90-minute lectures, presented two each on consecutive Saturdays. Each course will also have extensive syllabus material and practical exercises, as well as time for Q&A. The institute intends to keep class sizes small, which allows for more interaction with instructors and a greater depth of instruction as compared to more typical genealogy webinars.

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Genetic Genealogy Ireland 2014 – Are You Attending?

In 2013, genetic genealogist and popular lecturer Maurice Gleeson organized Genetic Genealogy Ireland 2013, the first of its kind conference in Ireland. The event was hugely successful (see all the YouTube videos here), and is back for round two in 2014.

The schedule for Genetic Genealogy Ireland 2014 has just been released (see “DNA Lecture schedule announced“), and features a great lineup of speakers:

  • Spencer Wells (Keynote Speaker)
  • Maurice Gleeson
  • Brad Larkin
  • Paul Burns
  • Catherine Swift
  • Emily Aulicino
  • Debbie Kennett
  • Richard M Byrne
  • Cynthia Wells
  • Kirsten Bos
  • Katherine Borges
  • Tyrone Bowes
  • Daniel Crouch
  • Patrick Guinness
  • Rob Warthen
  • Michelle Leonard
  • Gerard Corcoran

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Announcing “How-To DNA” – A Multimedia How-To Guide for Genetic Genealogy!

HowToDNAAnnouncing the launch of the world’s first multimedia how-to website for genetic genealogists!

How-To DNA (www.howtodna.com) is your how-to guide for genetic genealogy! The site will have short instructional how-to videos for beginners, as well as presentations and webcasts for the advanced genealogist. For example, you can already watch these short two-minute videos:

And there will be many, many more how-to videos coming over the next few weeks and months, including:

  • How to interpret your DNA test results
  • How to use a chromosome browser
  • How to use free third-party tools like GEDmatch
  • How to do so much more!

How-To DNA will also provide links to the latest videos, podcasts, and other instructional material created by DNA experts. As an example, listen to this terrific podcast with CeCe Moore being interviewed by The Genealogy Guys and get the latest scoop on CeCe’s involvement with Finding Your Roots! And if you weren’t able to attend the SCGS Jamboree, you can listen to Maurice Gleeson’s incredible talk about DNA and Irish Genealogy.

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1

Family Tree University’s Genetic Genealogy 101

Family Tree UniversityFor the very first time, Family Tree University is offering an online course (a four-week, instructor-guided class with material, quizzes, and extra credit homework)  directed to genetic genealogy! Announcing Genetic Genealogy 101, taught by yours truly!

This course is designed for the beginner, and will take you through the basics of genetics, mtDNA, Y-DNA, and autosomal DNA (including understanding your results, using third-party tools, etc.). In addition to the materials, quizzes, and homework, there are message boards where you can ask me questions about DNA, about your research, anything related to DNA. And you’ll be able to connect with and learn from your fellow students (all from the comfort of your home)!

The class starts on Monday, June 16th, and every week for four weeks there is a new lesson. If you’re a beginner and really don’t know where to start with incorporating DNA into your genealogical research, or you’ve received your results and aren’t sure how to read them, this class might be a good fit for you.

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