Origin of M173 (Eu18) in Europe...

From "The Genetic Legacy of Paleolithic Homo sapiens sapiens in Extant Europeans: A Y Chromosome Perspective

"Of the 22 haplotypes that constitute the phylogeny in Fig. 1 (top), Eu18 and Eu19 characterize
about 50% of the European Y chromosomes. Although they share M173, the two haplotypes show contrasting geographic distribution. The frequency of Eu18 decreases from west to east, being most frequent in Basques (Fig. 1, bottom, and Table 1). This lineage includes the previously described proto-European lineage that is characterized by the 49a,f haplotype 15 (10). In contrast, haplotype Eu19, which is derived from the M173 lineage and is distinguished by M17, is virtually absent in Western Europe. Its frequency increases eastward and reaches a maximum in Poland, Hungary, and Ukraine, where Eu18 in turn is virtually absent. Both haplotypes Eu18 and Eu19 share the derived M45 allele. The lineage characterized by M3, common in Native Americans (12) and a few Siberian populations (15), is also a derivative of M45. This observation suggests that M173 is an ancient Eurasiatic marker that was brought by or arose in the group of Homo sapiens sapiens who entered Europe and diffused from east to west about 40,000 to 35,000 years ago (16, 17), spreading the Aurignac culture. This culture also appeared almost simultaneously in Siberia (17), from which some groups eventually migrated to the Americas."

Haplogroup R1a

 

The haplogroup HG3 (or in the new nomenclature, R1a1) is seen more frequently on the eastern side of Europe – for example, 9% of the population of Turkey is of this type.  But this line is also common in Scandinavia, and is said by some to be indicative of "Viking blood" when seen in paternal lines originating in the British Isles. The forefather of this line is thought to have been born in the Ukraine during the last Ice Age about 15,000 years ago. 

The three groups of humans had taken refuge for so long that their DNA had naturally picked up mutations, and consequently can be defined into different haplogroups. As they spread from these refuges, Haplogroups R1b, I and R1a propagated across Europe.

- Haplogroup R1b is common on the western Atlantic coast as far as   Scotland.
- Haplogroup I is common across central Europe and up into Scandinavia.
- Haplogroup R1a is common in eastern Europe and has also spread across   into central Asia and as far as India and Pakistan.

These three major haplogroups account for approx 80% of Europe's present-day population.

 

 

Around 8,000 years ago (Map 3), the Neolithic peoples of the Middle East that had developed the new technology of agriculture began moving into Europe. There were several haplogroups involved, mainly E3b, F, J2 and G2.

 

 

 

 

Haplogroup R1a

The fabled haplogroup R1a - or, more precisely, its subclade R1a1 - is said to indicate a "Viking origin"

when it is found among men of British descent. This is the haplogroup that will earn you a "Viking" certificate

from Oxford Ancestors, and its presence was the main focus of the Capelli study "A Y Chromosome

Census of The British Isles".

It is believed to have originated among the Kurgan culture of western Asia, which is often credited

with spreading the Indo-European languages to northwestern Europe. The Kurgans were nomads with a

pastoral economy, and to this day their descendants bear the genetic traces of a dependence on livestock and

animal products. The incidence of milk tolerance among the Swedes, for instance, is among the highest

in the world.

The Scandinavians have long believed that their ancestors originated in Asia. The Icelandic sagas claim

descent for the Jarls of Norway from the warriors of Troy, and the anthropologist Thor Heyerdahl - the author of

the classic "Kon Tiki" - spent his final years attempting to trace the human originals of Wodin and the Aesir

back to Azerbaijan in the Caucasus.  There may be an element of truth to these speculations, since individuals with

R1a haplotypes often score matches with Indians, Siberians, Chinese and other Asians - even when they score no

matches with persons from Europe. The recent discovery of fair-haired mummies in the Takla Makan desert of western

China has revived interest in the long forgotten Indo-Iranian tribe, the Tocharians, their possible role in the economy

of the Silk Road, and their relationship with the people of Europe. Haplogroup R1a is also, implicitly, the "Aryan"

haplogroup, and perhaps the less said about that, the better.

A person who does not belong to haplogroup R1a may, in fact, have a "deep ancestry" in Scandinavia.

R1a accounts for only about 30% of the men of Norway. The various subclades of Haplogroup I account for

about 35%, and even R1b accounts for as much as 28%. Conversely, a person who does belong to R1a does

not necessarily have Scandinavian ancestors - even if his people are from Britain.

Suppose you take three Britons - one whose grandfather was a Pakistani immigrant, another whose grandfather

was a Polish pilot with the RAF, and the third a Scot descended from one of the Hungarian noblemen who

accompanied Margaret Atheling to the court of Malcolm Canmore - and who, perhaps, bears the name

Drummond, Borthwick or Crichton.

All three gentlemen could easily be R1a, but that doesn't make them Vikings.

However, some DNA genealogists have asserted not only that R1a was "Viking", but that only R1a was truly Viking -

and that all the occurrence of R1b in the Norwegian population is due to the importation of Celtic slaves. This is a

curiously Anglo-Centric argument. Vikings took slaves from many foreign lands, and sold most of them to

other foreign lands. Most of the slaves in Norway were, in fact, the descendants of prisoners captured in wars

with other Vikings. Even those foreign slaves who were imported to Norway were more likely to be Slavic

than Celtic, as Slavs comprised the largest number of the slaves the Vikings bought and sold. Slavs had been

common victims of the "peculiar institution" since Roman times.

R1a is, in fact, far more prevalent in Poland and Hungary than in Norway. One could actually mount a

counterargument that it was not R1b, but R1a, whose incidence in Scandinavia was artificially enhanced by slavery.

R1a could also have entered Britain with the Goths, who served with the Roman Army in Britain. Many

Visigoths also settled in France, and some of their descendants accompanied the Normans to England. The De Vaux

family of Dirleton Castle, for instance, came from Normandy. Before that, however, they were reputedly descended

from a Visigothic family that obtained lands in Roman Gaul.

Indo-Iranian nomads like the Alans and the Sarmatians also probably carried R1a, and they found their

way to Britain as well.

Viking DNA Among The Border Rivers

Many of the Border River families are rumored to have Viking origin. That is a reasonable assumption in view of the

fact that Cumbria - the heart of the "Debateable Lands" - offers abundance evidence of Viking settlement, from place

names and Norse dialect, to archaeological finds of Viking artifacts and "hogback" style tombstones. Most of

these Vikings were actually Hiberno-Norse, which means that their forebears had resided in Ireland for generations

and had intermarried with the Irish Gaels. From the start of the wars in Dublin in the early tenth century, up until Brian

Boru finally ejected the Vikings at the Battle of Clontarf in 1014, there was a steady stream of refugees to the Isle

of Man, the Wirral (near Chester) and the sparsely populated areas of Galloway and Cumbria.

Penrith, which is in Cumbria, showed the highest proportion of R1a haplotypes of any place tested in England -

about 8 percent, according to the

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Haplogroup R1a

The fabled haplogroup R1a - or, more precisely, its subclade R1a1 - is said to indicate a "Viking origin"

when it is found among men of British descent. This is the haplogroup that will earn you a "Viking" certificate

from Oxford Ancestors, and its presence was the main focus of the Capelli study "A Y Chromosome

Census of The British Isles".

It is believed to have originated among the Kurgan culture of western Asia, which is often credited

with spreading the Indo-European languages to northwestern Europe. The Kurgans were nomads with a

pastoral economy, and to this day their descendants bear the genetic traces of a dependence on livestock and

animal products. The incidence of milk tolerance among the Swedes, for instance, is among the highest

in the world.

The Scandinavians have long believed that their ancestors originated in Asia. The Icelandic sagas claim

descent for the Jarls of Norway from the warriors of Troy, and the anthropologist Thor Heyerdahl - the author of

the classic "Kon Tiki" - spent his final years attempting to trace the human originals of Wodin and the Aesir

back to Azerbaijan in the Caucasus.  There may be an element of truth to these speculations, since individuals with

R1a haplotypes often score matches with Indians, Siberians, Chinese and other Asians - even when they score no

matches with persons from Europe. The recent discovery of fair-haired mummies in the Takla Makan desert of western

China has revived interest in the long forgotten Indo-Iranian tribe, the Tocharians, their possible role in the economy

of the Silk Road, and their relationship with the people of Europe. Haplogroup R1a is also, implicitly, the "Aryan"

haplogroup, and perhaps the less said about that, the better.

A person who does not belong to haplogroup R1a may, in fact, have a "deep ancestry" in Scandinavia.

R1a accounts for only about 30% of the men of Norway. The various subclades of Haplogroup I account for

about 35%, and even R1b accounts for as much as 28%. Conversely, a person who does belong to R1a does

not necessarily have Scandinavian ancestors - even if his people are from Britain.

Suppose you take three Britons - one whose grandfather was a Pakistani immigrant, another whose grandfather

was a Polish pilot with the RAF, and the third a Scot descended from one of the Hungarian noblemen who

accompanied Margaret Atheling to the court of Malcolm Canmore - and who, perhaps, bears the name

Drummond, Borthwick or Crichton.

All three gentlemen could easily be R1a, but that doesn't make them Vikings.

However, some DNA genealogists have asserted not only that R1a was "Viking", but that only R1a was truly Viking -

and that all the occurrence of R1b in the Norwegian population is due to the importation of Celtic slaves. This is a

curiously Anglo-Centric argument. Vikings took slaves from many foreign lands, and sold most of them to

other foreign lands. Most of the slaves in Norway were, in fact, the descendants of prisoners captured in wars

with other Vikings. Even those foreign slaves who were imported to Norway were more likely to be Slavic

than Celtic, as Slavs comprised the largest number of the slaves the Vikings bought and sold. Slavs had been

common victims of the "peculiar institution" since Roman times.

R1a is, in fact, far more prevalent in Poland and Hungary than in Norway. One could actually mount a

counterargument that it was not R1b, but R1a, whose incidence in Scandinavia was artificially enhanced by slavery.

R1a could also have entered Britain with the Goths, who served with the Roman Army in Britain. Many

Visigoths also settled in France, and some of their descendants accompanied the Normans to England. The De Vaux

family of Dirleton Castle, for instance, came from Normandy. Before that, however, they were reputedly descended

from a Visigothic family that obtained lands in Roman Gaul.

Indo-Iranian nomads like the Alans and the Sarmatians also probably carried R1a, and they found their

way to Britain as well.

Viking DNA Among The Border Reivers

Many of the Border Reiver families are rumored to have Viking origin. That is a reasonable assumption in view of the

fact that Cumbria - the heart of the "Debateable Lands" - offers abundance evidence of Viking settlement, from place

names and Norse dialect, to archaeological finds of Viking artifacts and "hogback" style tombstones. Most of

these Vikings were actually Hiberno-Norse, which means that their forebears had resided in Ireland for generations

and had intermarried with the Irish Gaels. From the start of the wars in Dublin in the early tenth century, up until Brian

Boru finally ejected the Vikings at the Battle of Clontarf in 1014, there was a steady stream of refugees to the Isle

of Man, the Wirral (near Chester) and the sparsely populated areas of Galloway and Cumbria.

Penrith, which is in Cumbria, showed the highest proportion of R1a haplotypes of any place tested in England -

about 8 percent, according to the Capelli study. The percentage of R1a in our sample so far is less than half that.

R1a Haplotype #16

Of the ten highest frequencies for the haplotype below, all but three fall in

Eastern Europe. This haplotype is relatively common among Hungarian Jews,

Bulgarian gypsies, who may ultimately be of Indian origin, and in the Caucasus.

Most of the other areas where it is common in Eastern Europe were subject to

Fenno-Scandinavian colonization, such as Latvia, Lithuania, Moscow and

Kiev. It is also relatively common in Norway - and appears at lower

levels in Sweden and Finland.

Some have speculated that Scandinavian R1a has a different geographical

pattern from Slavic R1a, in that the former has matches in India and the

Caucasus while the latter is confined to Eastern Europe. The match

pattern for this haplotype bears a strong bias towards the latter.

Nonetheless, it most likely came to Britain with the Vikings.

19

389i

389ii

390

391

392

393

385a

385b

15

13

29

25

10

11

13

11

14

 

Geographical Locale

%

Budapest, Hungary [Ashkenazi Jews]

2.70

Vilnius, Lithuania

2.55

Moscow, Russia

2.35

Caucasus [Kabardinian]

1.72

Warsaw, Poland

1.67

Kiev, Ukraine

1.64

Graz, Austria

1.54

Riga, Latvia

1.38

Bulgaria [Romani]

1.23

Eastern Norway

1.18

Leipzig, Saxony

1.06

Szeged, Hungary

1.00

Gdansk, Poland

.92

Wroclaw, Poland

.83

Bulgaria

.82

Munich, Bavaria

.80

Bialystok, Poland [Old Believers]

.78

Tartu, Estonia

.75

Cologne, Westphalia

.74

Berlin, Brandenburg

.73

Magdeburg, Saxony-Anhalt

.71

Bogota, Colombia [European]

.68

Dusseldorf, Westphalia

.67

Bialystok, Poland [Byelorussians]

.64

Bydgoszcz, Poland

.63

Andulacia, Spain

.61

Chemnitz, Saxony

.49

Rostock, Mecklenburg

.49

Greifswald, Pomerania

.48

Finland

.25

Sweden

.25

Stuttgart, Baden-Wurttemburg

.22

R1a Haplotype #21

This haplotype is widespread, but is clearly most common in Eastern Europe, particularly Russia and Poland.

The conventional interpretation is to attribute any R1a haplotype found in a person of British descent to the Norse

Vikings, but this geographical match pattern - at least in theory - could support an ancestry among the Alans or

the Sarmatians.

However, far more Danes and Norwegians are likely to have settled in Britain than Alans or

Sarmatians, so our final vote must go to the Scandinavians.

19

389i

389ii

390

391

392

393

385a

385b

16

13

29

25

11

11

13

11

14

 

Geographical Locale

%

Caucasus [Abkhazian]

8.33

Bialystok, Poland [Old Believers]

3.10

Friesland, Netherlands

2.27

Riga, Latvia

2.07

Wladiwostok, Russia [European]

2.02

Pennsylvania [European-American]

1.49

Moscow, Russia

1.18

Bialystok, Poland

1.10

Miercurea Ciuc, Romania [Szekely]

1.10

Kiev, Ukraine

1.09

Szeged, Hungary

1.00

Athens, Greece

.99

Sweden

.99

Gdansk, Poland

.92

Bulgaria

.82

Tartu, Estonia

.75

Bydgoszcz, Poland

.60

Krakow, Poland

.48

Wroclaw, Poland

.45

Cologne, Westphalia

.43

Warsaw, Poland

.42

Lublin, Poland

.41

Berlin, Brandenburg

.36

Chemnitz, Saxony

.12

Leipzig, Saxony

.12

R1a Haplotype #22

The match pattern for this haplotype falls exclusively in Russia, Poland and Germany, and appears to have a Baltic focus.

It most likely came to Britain with the Vikings.

19

389i

389ii

390

391

392

393

385a

385b

16

13

29

25

10

11

14

11

14

 

Geographical Locale

%

Novgorod, Russia

2.00

Bialystok, Poland [Byelorussians]

1.27

Bialystok, Poland [Old Believers]

.78

Muenster, Germany

.51

Krakow, Poland

.48

Warsaw, Poland

.42

Munich, Germany

.36

Bydgoszcz, Poland

.24

Gdansk, Poland

.18

R1a Haplotype #25

The haplotype below exhibits a large number of hits in parts of Saxony (e.g., Dresden, Chemnitz, Magdeburg, Leipzig

and Hamburg), as well as some in Poland, and one each in France and England. The high German match frequencies

are unusual for an R1a haplotype, and suggest an Anglo-Danish origin.

We would do well to remember that the Angles, and the Jutes in particular, originated from what is now known as

Denmark. Eastern Germanic tribes like the Suevi mixed with the Saxons. Roman auxiliaries from all over Germany

also served in Britain, and may have included members of such Baltic tribes as the Goths, the Heruls and the Rugians.

It is unrealistic to insist that all R1a in pre-Norman Britain would have been of exclusively Norwegian origin.

19

389i

389ii

390

391

392

393

385a

385b

16

13

29

26

10

11

13

11

14

 

Geographical Locale

%

DresdenGermany

2.33

Virginia [European-American]

1.64

Suwalki, Poland

1.22

Chemnitz, Germany

1.10

Warsaw, Poland

.83

Lyon, France

.80

Central Bohemia, Czechia

.79

Hamburg, Germany

.73

Leipzig, Germany

.73

Greifswald, Germany

.62

Wroclaw, Poland

.45

London, England

.35

Magdeburg, Germany

.35

Bydgoszcz, Poland

.35

Freiburg, Germany

.23

Gdansk, Poland

.18

 

 

 

 

 

 

 

 

 

Haplogroup R1a

The fabled haplogroup R1a - or, more precisely, its subclade R1a1 - is said to indicate a "Viking origin"

when it is found among men of British descent. This is the haplogroup that will earn you a "Viking" certificate

from Oxford Ancestors, and its presence was the main focus of the Capelli study "A Y Chromosome

 

 

 

 

 

 

393

390

394

391

385a

385b

426

388

439

389i

392

389ii

458

459a

459b

455

454

447

437

448

449

464a

464b

464c

464d

460

gata

yca

yca

456

607

576

570

cdy

cdy

442

438

 

 

 

 

19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

h 4

ii a

ii b

 

 

 

 

a

b

 

 

Kit #

loc1

loc2

loc3

loc4

loc5

loc6

loc7

loc8

loc9

loc10

loc11

loc12

loc13

loc14

loc15

loc16

loc17

loc18

loc19

loc20

loc21

loc22

loc23

loc24

Loc25

loc26

loc27

loc28

loc29

loc30

loc31

loc32

loc33

loc34

loc35

loc36

loc37

 

 

Using genetic markers, we can estimate how closely people are related to each other. We do this by counting the genetic differences (mutations) between two individuals.

The particular DNA markers we analyse are called ‘short tandem repeats’, where small sections of the DNA code are repeated several times. At any one of these short tandem repeats, the number of repeats can increase or decrease, usually one at a time. Thus 9 repeats of the code, GTCA, may suddenly be copied incorrectly within the body and change to 10 repeats.

Many people who share a surname will also share their haplotypes (i.e. have a 21/21 match). The graph below ('Matches against 21 markers') shows that , mathematically, the most likely person to have your haplotype is zero generations away - i.e. you (look at the line 21*). This if course makes perfect sense. But it also means that as you increase the number of generations, the probability of matching someone else becomes lower, which also makes sense. There is a higher chance that mutations have occured.

If you match someone at 20 out of 21 markers, you'll get a slightly different probability curve. The most likely MRCA is now not at zero generations, but further away.

Using 21 markers, it is usual for related individuals to share an exact haplotype i.e. a 21/21 match, although 20/21 and 19/21 matches should also be considered. Any more than this and the times to the MRCA are just too long for a connection to be considered - as most surnames begun much more recently

Haplogroup versus Haplotype versus Lineage

There is a lot of talk about haplotype versus haplogroup. Some definitions from Peter de Knijff's paper "Messages through Bottlenecks: On the Combined Use of Slow and Fast Evolving Polymorphic Markers on the Human Y Chromosome" [Am. J. Hum. Genetics, 67:1055-1061 (2000)]. "Distinct Y chromosomes identified by STR's are designated as 'haplotypes.'" Stated in another way: a haplotype is represented by the number of repeats at certain alleles, or markers on the y chromosome. "Distinct Y chromosomes, defined solely on the basis of (unique mutation events) UME character states, are designated as 'haplogroups.'" Each haplogroup consists of a variable number of Y chromosomes that share the same UME character state but vary in Y-STR haplotype. "Y chromosomes that are defined by the combination of UMEs [haplogroups]and combination of STRs [haplotypes] are called 'lineages.'"

Care must be taken when comparing results. There is always a possibility that someone may be comparing a haplotype of someone in a different haplogroup. In one-name studies this "threat" is diminished. However, if you are searching databases that have haplotypes, you have to be sure that you are comparing apples and apples, not apples and oranges--comparing those in your own haplogroup (which these databases do not yet provide for). While I thought that future testing should include more biallelic polymorphisms in order to determine haplogroup, Dr. Mark Jobling says what is needed are more microsatellites in testing, not biallelic polymorphisms. At present we are seeing people compare apples and oranges, saying that they may have a common ancestor with some other surname such as Duerinck, when in reality, we both may be in different haplogroups. I am currently reading 3 papers from the American Journal of Human Genetics on these issues: "Y-Chromosomal Diversity in Europe is Clinal and Influenced Primarily by Geography, Rather than by Language" by Rosser, et al. [AJHG vol 67 page 1526 (2000)]; "Estimating Scandinavian and Gaelic Ancestry in the Male Settlers" by Helgason et al. [AJHG vol 67 page 697 (2000)]; and "Messages through Bottlenecks: On the Combined Use of Slow and Fast Evolving Polymorphic Markers on the Human Y Chromosome" by de Knijff [AJHG vol 67 page 1055 (2000)].

It appears that HG 1 may be the main pre-Ice Age male element in western Europe (for y-chromosome analysis), similar to Prof. Sykes's Daughters of Eve (mtDNA analysis). HUGO, the gene nomenclature body, and the University College of London would like to resolve the differences in nomenclature for the haplogroups.

Most Recent Common Ancestor (MRCA)

In order to understand MRCA, you must understand the following:
--MRCA (most recent common ancestor): the common ancestor between 2 people.

--generation: it means every 20 years here (lot of discussion on this point--most of us are inclined to believe that 25 years is a better estimate).
--Heyer principle: y chromosome mutations occur generally once every 500 generations per locus (or "per marker") (mutation rate of 0.2% or 0.002, Heyer et al. 1997)
--Example of Heyer principle: Using the Heyer principle, we would expect EACH locus to change 1 digit in 500 generations. For example, we would expect that a 5 (repeat units) in locus #1 would move to either a 4 or a 6 in that 9-10,000 year time frame (500 generations).
So, instead of ONE locus, how about looking at 12 loci (or 15 or 20 etc.)? If we use a 12 marker test, in 500 (generations) / 12 (markers) = 41.667 generations we would expect to have a change in 1 of the 12 markers by 1 digit. OR, to be in the "club" of Duerincks, if the Common Ancestor was farther back in time than 41.667 generations (a generation = 20 years), then it would be totally expected that a "real" related Duerinck (Kit 281 in table above) would have a 1 digit change in 835 years.

Getting back to the reasonableness of expecting a mutation to occur every 41 or so generations if a 12 marker test (testing 12 loci) is used, what does the mutation rate become if more markers are used? Simple. You must also remember that loci changes (mutations) can occur at any time. Using the y chromosome mutation rate PER MARKER of once every 500 generations, if 15 loci are measured, 500 divided by 15 = every 30 generations there could be a mutation at a loci. If 17 loci are measured, 500 divided by 17 = every 29 generations. At 20 loci being measured, 500 divided by 20 = every 25 generations there could be a mutation at a loci. Where 21 loci are measured and you have a 21/21 match, this indicates that there is a 50% probability that the MRCA is within 9 generations and a 90% probability that the MRCA is within 28 generations.

As genealogists we want to know when the MRCA between two people lived. We know that where all 12 markers match, there is a 50% probability that the MRCA was no longer than 14.5 generations (290 years), and a 90% probability that the MRCA was within the last 48 generations (63 generations at 95%). The range for a 12/12 match is 1 to 63 generations. Further, if a test uses 12 different loci (a 12 marker test), it is reasonable to expect a change to occur every 41 or so generations; however, these changes can take place at any time.

What if there is an 11/12 marker match? For an 11/12 match, there is a 50% probability that the MRCA lived no longer than 36 generations. This translates into 36 x 20 = 720 years. The range for an 11/12 match is 1 to 104 generations (85 generations at 90%, 104 at 95%).

What if there is a 10/12 match? For a 10/12 match, there is a 50% probability that the MRCA lived no longer than 61 generations. The range for a 10/12 match is 1 to 145 generations (122 at 90%, 145 at 95% probability).

We do know that if the results of 2 people are different by 1 mutation, that these people are related. If different by 2 mutations, probably related. Is there a difference if there is a 2 repeat value change on one loci OR if there is are 1 repeat value changes on two loci? As we see 3 or more mutations, the people who may be related are very distantly related. The concept of MRCA puts the relation back many generations, more like 1,000 to 2,000 years for 3 mutations. For 3 or more mutations out of a 12 marker test, people are not related from a genealogical standpoint.

Just an update when using 21 markers: if you match 21/21 then the likelihood of having a common ancestor with that person is that in 50% of the cases the common ancestor would have been within 8.3 generations. Of course it could be more recent and it could be farther back.

At a 25 marker match between 2 individual males (with the same or variant surname), there is a 50% probability that the most recent common ancestor is 7 generations back or less. We are speaking of confidence intervals. In other words, 50% will find their common ancestor within that range. If you want to be more confident (think of it as placing a gambling bet--when did the MRCA live?), the number of generations back to the MRCA would increase. How confident are you at 95% probability? 95% will find their common ancestor within 30 generations ago or less for a 25/25 marker match. You can find the MRCA within the range of 0 to 37 generations for a 25/25 marker match.

Did you ever wonder what DYS stands for? D = DNA, Y = Y-chromosome, S = (unique) segment [or "single copy sequence" according to "Forensic DNA Typing" by John Butler]. The DYS numbering scheme (e.g. DYS388, DYS390) for the Y-STR haplotype loci is controlled and administered by an international standards body called HUGO Human Gene Nomenclature Committee based at University College, London.

PHYLOGENETIC TREE

Here are most of the results represented in a phylogenetic tree. This graph was done by Ann Turner, GENEALOGY-DNA List Administrator, and is used here with her express permission. You will note the markers are DYS markers for the known markers and FT markers for those markers used by FTDNA that have not yet been made public. The software that was used is available at Fluxus-Engineering. The instruction page notes that in human Y STRs, compound STRs such as DYS389II should be resolved into its mutational subcomponents m, n, and q to avoid artefacts. In the graph below, the Reduced Median (RM) network method was used.

 

 

The above phylogenetic tree shows 2 clusters (tree needs to be updated showing closer relationships by eliminating an error in locus 19 which allele was previously 12 but has now been corrected to 13 in the results chart). Regarding the first cluster at the bottom, for Durinck/Duerinck/Dierick, the graph shows that these surnames originate from the family represented by participant number 282, Durinck. That includes numbers 281 Duerinck (me), 1069 Dierick and 288 Duerinck. It appears that participant 298 Dueringer, might be related to Durinck further back. I would caution the reader that under current technology, this last relationship may or may not be statistically significant--3 mutations away from Durinck--even though it is on the graph. More samples and more markers would have to be studied.

The second cluster, at the top of the graph, shows participants 299 Von Duering, 297 Dieringer, and 337 Duering to be more closely related than those participants in the first cluster and the bottom. Participants 283 and 287 were not graphed because they were the furthest away from any of the other participants and also because the software used started messing up.

http://www.cstl.nist.gov/div831/strbase/ppt/ISFG2001.ppt - 16

http://wanclik.free.fr/family_tree.htm