Suomalaiset

proto-pohjois-eurooppalaisia kirjoitti:

Btw, I'm curious, what's your explination why Finns don't cluster with Germans, Swedes, Poles, Irish, English etc in this and the other genome wide test?

http://genetics.plosjournals.org/perlserv/?request=get-document&doi=10.1371%2Fjournal.pgen.0020143
______________________________________________________________________


http://genetics.plosjournals.org/archive/1553-7404/2/9/figure/10.1371_journal.pgen.0020143.g001-M.jpg
http://i4.photobucket.com/albums/y121/fi1/1.jpg

That is obvius. Finns are the least mixed population, not the most mixed. That causes Finns to cluster together, finns have less "building blocks" than other European populations. If you look at the images provided in this thread you notice that finns are 10% Siberian, 90% European. The European part can be divided to 2 blocks, 90% of North-European component and 10% of other European components (east, west, central, med etc). Now the Siberian 10% can be even further dissected. Just take a look at the Dnatribes link (or the Plosjournal study , look for K=10). It shows that mongoloid component inside of Siberian component is somewhat 50%, effect in total genome ~5%. That is approx. European average.

Poles, germans, swedes etc cluster together because they have similar building blocks, just in different quantities. Primary component in finns is the Northern-European component which is over 80% of total genome. Poles forexample seem to be 25% North-European, 50% Central-European, 25% Mediterranean Basque. Germans having allmost identical genome, no wonder they cluster together and finns depart from them. (source: images provided by you at page 4 of this thread)

What makes finns different is that finns are rather geneticly isolated ("pure") population and not as much mixed as other European populations. One could argue that all other European populations have finnish genes but finns do not have genes of all other European populations.

You wrote: So yes, Finns are related to Northern Euros. Wrong, finns are THE Northern-Euros. Poles are related to Northern-Euros.

_____________________________________________________________________________________-

http://genetics.plosjournals.org/archive/1553-7404/2/9/figure/10.1371_journal.pgen.0020143.g001-M.jpg

This study used more than 5.700 snp's genomewide. Have a look at the table B. Finns are under FND. More than 80% of the genome is pink. Pink is distributed amongst the northern population. Spaniards having only a small slice because Spain is not northern.

Have look at the table A. There you notice two clusters. South-European and North-European. Finns have allmost no south component. Thus being the most northern population in the study.

Full study@:
http://genetics.plosjournals.org/perlserv/?request=get-document&doi=10.1371/journal.pgen.0020143

Interesting discussion from that study:
The examination of population differences within Europe using mitochondrial [12–15] or Y chromosome [16–18] haplogroups has been particularly useful in tracing part of the routes of migration and populating of Europe, but these haplogroups do not provide strong inferences on population genetic structure

http://i4.photobucket.com/albums/y121/fi1/1.jpg

This study tested 10.000 snp's genomewide.

This image represents only European populations (finns do have approx. 10% Siberian affinity genomewide). Have a look at the statistics at K=6.

Finns are allmost entirely "blue", which is distributed amongst the northern populations. Amount of blue significantly drops the further south population is located. Finns are very homogenous population ie. isolated. Principal component is North-European.

________________________________________________________________________________________

http://www.biodiversityforum.com/viewtopic.php?t=3822&postdays=0&postorder=asc&start=56

kirjoitti:

Anonyymi

Kirjoita kommentti

5000

Lähetä