#408784

Anonymous

Identical by descent (IBD) is a term used in genetic genealogy to describe a matching segment of DNA shared by two or more people that has been inherited from a recent common ancestor without any intervening recombination. In short IBD the degree of relatedness between two individuals such as as establishing if two people are kins. IBD is also used to measure relatedness between populations.

A paper was published on Lipka Tatars living in Belarus. Lipka Tatars are also known as Lithuanian Tatars settled in 14-16th centuries in Lithuania and Poland. They required to provide military regiments at the time of war.  In this study several Slavic populations featured: Poles, Ukrainians, Belarusians and Russians of central Russia.

The degree of relatedness of Belarusians (red dot) to other populations is shown on the plot. The higher is the position of the red dot, the greater is the degree of relatedness .

 The article  East Eurasian ancestry in the middle of Europe: genetic footprints of Steppe nomads in the genomes of Belarusian Lipka Tatars (2016) http://www.nature.com/articles/srep30197

In large resolution. http://oi66.tinypic.com/zyahvp.jpg

(A) average number of IBD segments per pair of individuals for each
combination of populations analyzed; (B) average total length of genome
shared identical by descent (in cM) per pair of individuals for each
combination of populations analyzed.


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