![\"\"](\"http:\/\/www.jmhartley.com\/HBlog\/wp-content\/uploads\/2016\/12\/8thCousinPouliotSAH.jpg\")
<\/a><\/p>\nLorraine is my wife’s paternal Aunt. Here is what the DNA looks like at AncestryDNA:<\/p>\n
Here is how the match looks like at At Gedmatch,<\/p>\n Actually, based on this person’s email, there are 2 matches. This is the Ancestry one. The other test was at 23andme. They are likely the same person. This AncestryDNA match got higher results perhaps due to the comparison within the same company.<\/p>\n My goal as stated above is to map one or more of the matching Chromosomes to see if the match along the Pouliot line is likely. I do have two Pouliot 2nd cousins to Aunt Lorraine which will help. It would make sense to map the Chromosomes where they match Aunt Lorraine. Here is how Fred, who is a Pouliot 2nd cousin to Lorraine matches Lorraine on Chromosomes 4:<\/p>\n The good news is that there is a lot of Pouliot DNA for mapping this Chromosome. The bad news is that the original Chromosome match between Ann and Lorraine was fairly small.<\/p>\n First I compare the 3 siblings using the Gedmatch Chromosome Browser:<\/p>\n In the image above, I’ve added the crossovers and the approximate locations on the Chromosome where they occur. There are a lot of crossovers bunched up on the right side. Next I assign the crossovers to a particular sibling. Note that I added two crossovers that I missed in the previous image:<\/p>\n Next I map the 3 siblings based on crossover, Fully Identical Regions (FIRs in green), Half Identical Regions (HIRs in yellow) and the places where the siblings don’t match in red.<\/p>\n I’ll start in the middle of the Chromosome where Lorraine and Virginia have a FIR going over two segments (before positions 120):<\/p>\n This gets us started. The DNA that these 3 siblings inherited from two of their same grandparents are represented by green and purple and extend to each of their crossover lines. Next, I look for other FIRs or places where the siblings don’t match. For example, Richard and Virginia don’t match between 59 and 84, so I’ll add two new colors to Virginia, to show the DNA she got from the other two grandparents.<\/p>\n Here it looks like I’m stuck for now:<\/p>\n Now I add a HIR. Our Gedmatch match between Lorraine and Ann was between 33 and 40, so I’ll add one for Lorraine there.<\/p>\n I did this by arbitrarily extending one of Lorraine’s colors to the left and choosing another color to add so Lorraine and Richard would be HIR between 31 and 84. Then I extended those colors to the left as Lorraine had no crossovers on the left side of the Chromosome. Based on this HIR, I can fill in some more on the left had side:<\/p>\n Now I have a lot of the left side of Chromosome 4 mapped out. I also have Fred who is a second cousin on the Pouliot side. I’ll mush all the information together and then try to figure out what color Pouliot is:<\/p>\n Here I’m leaning toward a purple Pouliot. The reason is that Richard has a purple segment (and Pouliot match) from 4 to 14. Richard, Lorraine and Virginia match Fred from 102-126, but Richard may not be mapped in that area yet. However, Lorraine and Virginia have purple in that segment. In addition, I don’t have positions for the two crossovers between 95 and 120. I can get those from Gedmatch by comparing Richard and Virginia’s FIR at full resolution:<\/p>\n The FIR starts a little after 100M and ends at about 106.5. Those two positions numbers define the two crossovers between 95 and 120. That also confirms that Pouliot is purple. This defines a grandparent and the maternal and paternal sides of the Chromosome as Pouliot is on the maternal side for these three siblings. It also defines the other maternal grandparent (LeFevre) as being the red or maroon color.<\/p>\n Next, I can fill in all the other Pouliot sections provided by these 3 siblings’ Pouliot cousin Fred:<\/p>\n A few notes on the mapping:<\/p>\n A close look shows that between 180 and 185, Lorraine and Richard don’t match. In order to meet the FIRs, HIRs, and no-matches on the right hand side, I came up with this:<\/p>\n<\/a><\/p>\n<\/a><\/p>\nThe Goal: Compare Gedmatch, AncestryDNA and Visual Mapping<\/h4>\n
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Now To Visually Map Richard, Lorraine and Virginia On Chromosome 4<\/h4>\n
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Some additional adjustments<\/h5>\n