KurdishDNA: Dodecad

Showing posts with label Dodecad. Show all posts

Saturday, November 3, 2012

Biogeographical Ancestry using Dodecad Globe13 data

Today, I want to use Globe13 data of the Dodecad project to determine the biogeographical ancestry of all Dodecad participants. Due to the large amounts of individuals (N=1043) I will just present the coordinates (latitude and longitude) of each individual.

Spreadsheet is available here.

For Middle Easterners, I created a map in googlemaps, see below:

View Biogeographical Ancestry Globe13 data in a larger map

Additionally, I created Neighbor-joining trees of all reference populations. The distance matrix for these trees is based on adjusted/weighted distances, not on pure Euclidean distances; the distances are adjusted based on the Fst values (Dodecad provided Fst values) of the 13 components.

Rectangular tree of reference populations of Dodecad Globe13 (pdf version):

Polar tree of reference populations of Dodecad Globe13 (pdf version):

I also created trees of all individuals and all reference populations.

Rectangular tree of all individuals of Dodecad Globe13 (pdf version):

Polar tree of all individuals of Dodecad Globe13 (pdf version):

Friday, June 8, 2012

Kurdish autosomal DNA: How are we mixed?

I. So what can we learn from the presented HarappaWorld results?

Only the components that are higher than 1% and occur in all presented samples can be considered as 'Kurdish' or 'Iranian'. Components that only occur in some samples are more likely due to individual 'family history'.
This helps us excluding most components that are not 'Iranian', i.e.

SE-Asian,
Siberian,
NE-Asian,
Papuan,
American,
Beringian,
San,
E-African,
Pygmy, and
W-African.

The South-Asian component is a tricky one since it is completely missing in one individual (Sorani Kurd5), but present in low amounts (Average 2%) in the other individuals.

The typical admixture of KurdishDNA based on HarappaWorld consists of 5 components (average of all 14 individuals):

Caucasus (43%),
Baloch (26%),
SW-Asian (14%),
Mediterranean (7%),
NE-European (6%), and
Other (6%).

II. What can we learn from the presented Dodecad K12b results?

Only the components that are higher than 1% and occur in all presented samples can be considered as 'Kurdish' or 'Iranian'. Components that only occur in some samples are more likely due to individual 'family history'.
This helps us excluding most components that are not 'Iranian', i.e.
Siberian,
NW-African,
SE-Asian,
E-African,
E-Asian, and
Sub_Saharan

Again, the South-Asian component is a tricky one since it is completely missing in one individual (Sorani Kurd5), but present in low amounts (Average 2%) in the other individuals.

The typical admixture of KurdishDNA based on Dodecad K12b consists of 5 components (average of all 14 individuals):

Caucasus (41%),
Gedrosia (27%),
SW-Asian (14%),
Atlantic-Mediterranean (7%),
N-European (6%), and
Other (5%).

The outcome of both HarappaWorld and Dodecad K12b is the same.

Last question for today: Do we see any gradient of these 5 components within the 14 samples?

Yes, we do. Between samples from the North vs from the South. The Northern samples have more of the 3 components Caucasus, Atlantic-Mediterranean/Mediterranean and N-European/NE-European, while the Southern samples have more of the 2 components Gedrosia/Baloch and SW-Asian.

Kurdish autosomal DNA based on Dodecad K12b

Today, I want to present Kurdish results using Dienekes's tool called Dodecad K12b, presented on gedmatch. Thanks to all the contributors of this post.

Results were used to determine biogeographical ancestry:

View Genome mapping of Kurds by Palisto in a larger map

To see it in direct comparison McDonald's maps, click here.

Color coding for all relevant components of Dodecad K12b: