About us
To date we have identified two American members of the line that descends from Mathias Bruch, born circa 1670 in Germany. Members of this family are in Haplogroup J2, a population group who migrated through the middle east thousands of years ago. The other member is from Poland and he is not related to the other two members.
The individual Y-DNA results for the three members of the Bruch DNA Project can be viewed under the Y-DNA RESULTS drop-down menu. If you choose the "Colorized" version, you will note that there are three rows above each subgroup which give the range of the lowest allele (marker) value to the highest allele value for each subgroup, as well as the modal (average or most common value). The shading highlights the allele values that differ from the modal. Pink represents those values higher than the modal and blue those values lower than the modal. The darker the shading, the greater the difference from the modal. These differences in values are infrequent mutations at random segments of the Y-chromosome which take place between generations. These new values are then passed on from father to son and are very helpful at splitting lineages into sub-sets, or branches, within the family tree.
The marker numbers at the top which are color-coded in dark red have shown a faster mutation rate than the average, and differences are less likely to indicate non-kinship. Explained another way, if two members of the Bruch DNA Project match exactly on all of the markers except for one or a few of the markers determined by Family Tree DNA to mutate more quickly, then, despite the mutation, this mismatch only slightly decreases the probability of two members of our project who match 34/37 or 33/37 not sharing a recent common ancestor. These differences in mutation rates are taken into consideration by the FTDNATiP™, which is Family Tree DNA's proprietary calculator for estimating probabilities of Time to the Most Recent Common Ancestor (TMRCA) between two people with exact or close matches. For example, if two pairs of people each have matches at a Genetic Distance of 1, but the mismatches for each pair are at different markers with different mutation rates, the two pairs will have slightly different probabilities of TMRCA.
The individual Y-DNA results for the three members of the Bruch DNA Project can be viewed under the Y-DNA RESULTS drop-down menu. If you choose the "Colorized" version, you will note that there are three rows above each subgroup which give the range of the lowest allele (marker) value to the highest allele value for each subgroup, as well as the modal (average or most common value). The shading highlights the allele values that differ from the modal. Pink represents those values higher than the modal and blue those values lower than the modal. The darker the shading, the greater the difference from the modal. These differences in values are infrequent mutations at random segments of the Y-chromosome which take place between generations. These new values are then passed on from father to son and are very helpful at splitting lineages into sub-sets, or branches, within the family tree.
The marker numbers at the top which are color-coded in dark red have shown a faster mutation rate than the average, and differences are less likely to indicate non-kinship. Explained another way, if two members of the Bruch DNA Project match exactly on all of the markers except for one or a few of the markers determined by Family Tree DNA to mutate more quickly, then, despite the mutation, this mismatch only slightly decreases the probability of two members of our project who match 34/37 or 33/37 not sharing a recent common ancestor. These differences in mutation rates are taken into consideration by the FTDNATiP™, which is Family Tree DNA's proprietary calculator for estimating probabilities of Time to the Most Recent Common Ancestor (TMRCA) between two people with exact or close matches. For example, if two pairs of people each have matches at a Genetic Distance of 1, but the mismatches for each pair are at different markers with different mutation rates, the two pairs will have slightly different probabilities of TMRCA.