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<\/a><\/p>\nFirst, I move the vertical lines to match up with changes in the sibling comparisons:<\/p>\n
I would like to look at the circled area as it is a confusing area of congested crossovers.<\/p>\n Here is my detailed analysis of the positions of the changes between siblings between in the congested area:<\/p>\n Here is the sorted version:<\/p>\n I was right to think that a lot was going on. There are six crossovers and possibly seven as there are a lot of V’s for Jim. The last comparison appears to be an anomaly or part of the V crossover. For now, I’ll assume that all the V’s indicate two crossovers – one at about 22M and one at 23.5M. Here is the summary:<\/p>\n Next, I’ll look for cousin matches. Initially, I’ll look in the area of congestion that I just focused on. Frazer cousin Emily matches just Jim:<\/p>\n She matches him up to 23.1M which is between the two V crossovers that I had for Jim. The next match is with Frazer cousin Paul:<\/p>\n Neither of these help a lot with the confusing crossover sections. I may be able to work both sides of the congested area into the middle.<\/p>\n Cousin Maury helps fill in some Hartley:<\/p>\n Rathfelder cousin Catherine gives me one of my maternal crossovers:<\/p>\n Cousin Judith fills in some Lentz DNA:<\/p>\n Lentz Cousin Joan adds some maternal DNA for Jon and suggests a crossover for Jon:<\/p>\n Before I get too far down the road, I would like to check the Segment Map:<\/p>\n This shows I am on the right track.<\/p>\n Next, I’ll solve my second to the last crossover. According to the comparisons, I have an FIR with Lori, so that means a Hartley\/Lentz combo. I’ll add that and move my DNA to the left side.<\/p>\n Next, I’m curious as to whether Jim has a double crossover in the congested area:<\/p>\n I can fill in the S-L segment for Jim.<\/p>\n Jim shows opposite to Jon (F) and Joel (D) and the same as Sharon. That means he does have a double crossover in that area as I supposed.<\/p>\n Perhaps I can fill in the rest of the Chromosome now:<\/p>\n Here is the quality check:<\/p>\n It looks like I need some work on the right side.<\/p>\n Here are the last four crossovers:<\/p>\n From the Fox Spreadsheet, I can tell where Lori’s crossover is, but not the other three. Actually, Jon (F) appears to be at 130.6.<\/p>\n One issue that is see is that the VL comparison has an NIR to FIR change which means there is a quick segment of HIR in between the NIR and FIR.<\/p>\n <\/p>\n This is what V&L looks like at full resolution:<\/p>\n It looks like there are actually four changes here. There is a small FIR near 130 (based on other comparisons also) and then the transition from NIR to FIR is two changes.<\/p>\n However, if there is an FIR at 130, that would be a double change also (from FIR to HIR to NIR), so that gets confusing.<\/p>\n I was hoping that the detailed analysis would give me easy answers:<\/p>\n This means that if I did this right, there are a lot of crossovers in this area. I had V-F-L-V.\u00a0 By the above, it could be F-V-D-L-D-F-L-L-V. This seems overly complicated.<\/p>\n The other option is to assume that the green segment at 130M is not an FIR:<\/p>\n I think I’ll go this route as it seems easier right now.<\/p>\n First, I’ll try to correct the little VF segment between Jim (V) and Jon (F). I have it as red and it appears to be green in the Gedmatch comparison. It could be that I have the V and F crossovers in the wrong order.<\/p>\n That worked. It makes sense as having two crossovers in the wrong order results in two changes in the F-V segment.<\/p>\n The next area I’m interested in is here:<\/p>\n In segment V-L, Jon is off in his matches to Joel (D) and Sharon, but not to Jim (V), Heidi and Lori. I don’t see how a change would fix this.<\/p>\n Here Maury matches Jim, Joel and Sharon. However, it could be that if I lowered the thresholds at Gedmatch, that Jon would match Maury also.<\/p>\n I took Maury and Jon down to a 2cM threshold and saw no match in the area I am looking at – around 130M. That suggests to me that Jon’s crossover is on the maternal side. When I changed Jon’s crossover to Maternal, that solved segment VL.<\/p>\n Here is the next segment to solve:<\/p>\n Hopefully, this is the last problem. Each mistake is with Jim (V). I think that if I change his crossover from maternal to paternal, that could solve the problem.<\/p>\n It did:<\/p>\n The good news is that the right side of Chromosome 9 appears to be finished. The bad news is that I forgot to finish the left side. I’ll try this as a solution:<\/p>\n I don’t see any obvious errors in the comparison:<\/p>\n<\/a><\/p>\nThe Congested Crossovers<\/h2>\n
<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\nCousin Matches<\/h2>\n
<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\nLooking for Maternal Cousin Matches<\/h3>\n
<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\nMoment of Truth with the Segment Map<\/h2>\n
<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\nA Closer Look at the Last Four Crossovers<\/h3>\n
<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n\u00a0An FIR at 130M?<\/h3>\n
<\/a><\/p>\nA Third Option – Look at the Sibling Comparisons<\/h3>\n
\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\nAny Help From Hartley Cousin Maury?<\/h3>\n
<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\nGood News, Bad News<\/h2>\n
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