Robert--do you know what changes FTDNA is proposing? I received a notice several weeks ago that changes--I assumed improvements and better tools--were coming, but have no idea what they might be. While autosomal is interesting, it is too tedious to work with at present except when one is almost sure of the genealogical connection before contacting the match (this has been the case with all three contacts I initiated, and probably a fourth who never replied); however, those cases are rare since many FTDNA customers do not provide a surname list, or if they do, fail to note the location. As they say in real estate, location is everything. Lindsey PS I searched 25 of 39 pages of X chromosome matches this afternoon using the standard you and Ann suggested and found only seven matches! -----Original Message----- From: Robert Paine <rpaine@vom.com> To: Lindsey Britton <lplantagenet@aol.com>; genealogy-dna <genealogy-dna@rootsweb.com> Sent: Thu, Nov 26, 2015 2:25 pm Subject: Re: [DNA] Question about Crossover on X Chromosome Lindsey I ignore any segments for any chromosomes that are smaller than 5cM. My early colonial and Irish ancestry cause many of the tiny segments to have multiple lines of possible connection and segments smaller than 10cM to have a much higher error rate. I think that Family finder would be more useful if they eliminated the requirement for a total of 20cM shared Dna and eliminated the use of the tiny segments. I have 14 project members in family finder but have pretty much stopped working with family finder, I find that I prefer 23andme but am curious it that will remain the case with the changes 23andme and Ftdna are proposing. RPaine -----Original Message----- From: Lindsey Britton via Sent: Thursday, November 26, 2015 10:34 AM To: GENEALOGY-DNA@rootsweb.com Subject: Re: [DNA] Question about Crossover on X Chromosome Are you speaking of FTDNA? They are including very small segments. I think you need to download all records from the chromosome and just focus on the largest X segments (at least 7 cM and preferably 10 cM). Ann Turner **************** Thank you--yes, I was speaking of. FTDNA. What about other chromosomes--does the threshold need to be that high, especially when a common ancestor has been identified? Lindsey ------------------------------- To unsubscribe from the list, please send an email to GENEALOGY-DNA-request@rootsweb.com with the word 'unsubscribe' without the quotes in the subject and the body of the message
Lindsay The raw data has more X Matches than FTDNA reports. Upload to GEDmatch to see them all using their X-only utility. Plus even more X Matches who tested at 23andMe and AncestryDNA. Jim - www.segmentology.org > On Nov 26, 2015, at 1:51 PM, Lindsey Britton via <genealogy-dna@rootsweb.com> wrote: > > > Robert--do you know what changes FTDNA is proposing? I received a notice several weeks ago that changes--I assumed improvements and better tools--were coming, but have no idea what they might be. While autosomal is interesting, it is too tedious to work with at present except when one is almost sure of the genealogical connection before contacting the match (this has been the case with all three contacts I initiated, and probably a fourth who never replied); however, those cases are rare since many FTDNA customers do not provide a surname list, or if they do, fail to note the location. As they say in real estate, location is everything. > > Lindsey > > > PS I searched 25 of 39 pages of X chromosome matches this afternoon using the standard you and Ann suggested and found only seven matches! > > > > -----Original Message----- > From: Robert Paine <rpaine@vom.com> > To: Lindsey Britton <lplantagenet@aol.com>; genealogy-dna <genealogy-dna@rootsweb.com> > Sent: Thu, Nov 26, 2015 2:25 pm > Subject: Re: [DNA] Question about Crossover on X Chromosome > > Lindsey > I ignore any segments for any chromosomes that are smaller than 5cM. My > early colonial and Irish ancestry cause many of the tiny segments to have > multiple lines of possible connection and segments smaller than 10cM to have > a much higher error rate. > > I think that Family finder would be more useful if they eliminated the > requirement for a total of 20cM shared Dna and eliminated the use of the > tiny segments. > > I have 14 project members in family finder but have pretty much stopped > working with family finder, I find that I prefer 23andme but am curious it > that will remain the case with the changes 23andme and Ftdna are proposing. > > RPaine > > -----Original Message----- > From: Lindsey Britton via > Sent: Thursday, November 26, 2015 10:34 AM > To: GENEALOGY-DNA@rootsweb.com > Subject: Re: [DNA] Question about Crossover on X Chromosome > > > Are you speaking of FTDNA? They are including very small segments. I think > you need to download all records from the chromosome and just focus on the > largest X segments (at least 7 cM and preferably 10 cM). > > Ann Turner > > **************** > > Thank you--yes, I was speaking of. FTDNA. What about other > chromosomes--does the threshold need to be that high, especially when a > common ancestor has been identified? > > Lindsey > > ------------------------------- > To unsubscribe from the list, please send an email to > GENEALOGY-DNA-request@rootsweb.com with the word 'unsubscribe' without the > quotes in the subject and the body of the message > > > > ------------------------------- > To unsubscribe from the list, please send an email to GENEALOGY-DNA-request@rootsweb.com with the word 'unsubscribe' without the quotes in the subject and the body of the message