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British Isles DNA by County |
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DNA Results |
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Sections
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The British Isles Project DNA results are presented in
four
different tables, described below.
For those interested in British ethnohistory, a terrific resource is available on the ISOGG website, compliments of John Eckersley. It consists of a table showing the principal ethnic groups that contributed to the DNA of the counties of the British Isles throughout history, from the time of the ancient Britons (Celts) to the post-Norman conquest period. mtDNA (BI2)The mtDNA results table for British Isles 2 show profiles project members who tested their mtDNA. For an explanation of the tests involved, see mtDNA Tests or the Tutorial at FTDNA, and the DNA Tutorial on the Clan Campbell page. A comprehensive listing of mtDNA projects and can be found on the World Families Network at mtDNA - The Family of Woman. Another helpful resource for mtDNA is Charles Kerchner's page on mtDNA Haplogroup Descriptions and Links. Y-DNA by County (BI1)This table shows members' profiles grouped by county in the British Isles. County groups are coloured to reflect coding of GENUKI's county maps of Great Britain and Ireland. Haplogroups in green have been confirmed by SNP testing. Haplogroups in red have been predicted by Family Tree DNA based on unambiguous results in the individual's personal page. For predicted results there is no reason to order an SNP test to confirm the Haplogroup. However, a "–" in the HAPLO field signifies that the comparative results are not clear and unambiguous. An SNP confirmation test may be ordered to determine the haplogroup with 100% confidence. Y-DNA by County (BI1) with Mutation ColourizationThis table shows members' profiles grouped by county in the British Isles. The colorization system was inspired by Jason Clary who devised a scheme to make observations of the differences between samples easy and efficient. The system defines and colours the background of markers that appear as mutations from the modal, or most common, set of marker values for that sub-group. A blue background means that the marker value is lower (-) than the modal while a red background means the value is higher (+) than the modal. The darker the color, the greater the genetic distance between an individual and the modal (most common) marker value for the group. Hold your mouse over a colorized marker to display the distance from the modal value. There is a sigma symbol above each of the subgroups to calculate the minimum, mode, median, mean and maximum value. Y-DNA (BI2)The Y-DNA results table for British Isles 2 shows profiles of project members who tested their Y-DNA. The profiles are ordered by haplogroup for easier comparison of similar haplotypes. For a clarification of DNA test results and their interpretation, see the FTDNA pages on Reading and Comparing Results, and on Interpreting Genetic Distance from 12-Marker, 25-Marker, and 37-Marker YDNA tests. Persons interested in the technical details behind the concept of genetic distance may wish to consult the Computing Genetic Distance page and the Time to Most Recent Common Ancestor Calculator at University of Arizona. Wikipedia also has a very comprehensive article on human Y-DNA haplogroups. Y-DNA by Haplogroup (BI1 and BI2)These tables show recurring 12-marker haplogroups in both British Isles 1 and British Isles. The markers are listed on the left, and the right hand table indicates the number of times the haplogroup appears among the entire project membership. Correlations of haplogroup and geographical location may suggest a common origin, even though it may not be possible by means of documentary research to establish a common ancestor. Matches on a significant number of higher numbers of markers might confirm a common origin. |
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