Population genetic diversity in an Iraqi population and gene flow across the Arabian Peninsula

[Harutyan Jort]

https://www.nature.com/articles/s41598-020-72283-1#Sec18

• Hayder Lazim,
• Eida Khalaf Almohammed,
• Sibte Hadi &
• Judith Smith

Scientific Reports volume 10, Article number: 15289 (2020)

Abstract​

Y-STRs have emerged as important forensic and population genetic markers for human identification and population differentiation studies. Therefore, population databases for these markers have been developed for almost all major populations around the world. The Iraqi population encompasses several ethnic groups that need to be genetically characterised and evaluated for possible substructures. Previous studies on the Iraqi population based on Y-STR markers were limited by a restricted number of markers. A larger database for Iraqi Arab population needed to be developed to help study and compare the population with other Middle Eastern populations. Twenty-three Y-STR loci included in the PowerPlex Y23 (Promega, Madison, WI, USA) were typed in 254 males from the Iraqi Arab population. Global and regional Y-STR analysis demonstrated regional genetic continuity among the populations of Iraq, the Arabian Peninsula and the Middle East. The Iraqi Arab haplotypes were used to allocate samples to their most likely haplogroups using Athey’s Haplogroup Predictor tool. Prediction indicated predominance (36.6%) of haplogroup J1 in Iraqi Arabs. The migration rate between other populations and the Iraqis was inferred using coalescence theory in the Migrate-n program. Y-STR data were used to test different out-of-Africa migration models as well as more recent migrations within the Arabian Peninsula. The migration models demonstrated that gene flow to Iraq began from East Africa, with the Levantine corridor the most probable passageway out of Africa. The data presented here will enrich our understanding of genetic diversity in the region and introduce a PowerPlex Y23 database to the forensic community.

 

[Harutyan Jort]

so, let's just do a break down
starting with my own J1 fella: 93/254=36.61%
J2:53/254=20.86%
E1b1b=35/254=13.77%
G2a=7/254=2.75%
R1a=16/254=6.29%
R1b=15/254=5.9%
L=6/254=2.36%
T=5/254=1.96%
Q=6/254=2.36%
I2=4/254=1.57%
other minor clades
R2=1/254=0.39%
E1a+E1b1a=3/254=1.18%
O3=1/254=0.39%
N=1/254=0.39%

 

[Harutyan Jort]

total 3.14% e-m123 8/254 in Iraqi Arab males
note: I use Nevgen Y-STR predictor
ID.13 ( likely E1b1b M123>M34>Z841)
ID.88 ( likely E1b1b M123>M34>Z841)
ID.176 ( likely E1b1b M123>M34>Z841)
ID.207 ( likely E1b1b M123>M34>M84)
ID.324 ( likely E1b1b M123>M34>Z841)
ID.468 ( likely E1b1b M123>M34>Z841)
ID.502 ( likely E1b1b M123>M34>M84)
ID.506 ( likely E1b1b M123>M34>Z841)

 

[kingjohn]

so, let's just do a break down
starting with my own J1 fella: 93/254=36.61%
J2:53/254=20.86%
E1b1b=35/254=13.77%
G2a=7/254=2.75%
R1a=16/254=6.29%
R1b=15/254=5.9%
L=6/254=2.36%
T=5/254=1.96%
Q=6/254=2.36%
I2=4/254=1.57%
other minor clades
R2=1/254=0.39%
E1a+E1b1a=3/254=1.18%
O3=1/254=0.39%
N=1/254=0.39%

thanks for your effort
if only 3.14% of the males are under e-m123 out from the total 13.77% e1b1b1
that leave us 10.63% ( x e-m123)
i guess most of the e1b1b1 cases fall under e-m78
in iraqi arabs

 

[Harutyan Jort]

thanks for your effort
if only 3.14% of the males are under e-m123 out from the total 13.77% e1b1b1
that leave us 10.63% ( x e-m123)
i guess most of the e1b1b1 cases fall under e-m78
in iraqi arabs

yep, most e1b1b1 in Iraqi Arabs are E-V22

 

[Harutyan Jort]

thanks for your effort
if only 3.14% of the males are under e-m123 out from the total 13.77% e1b1b1
that leave us 10.63% ( x e-m123)
i guess most of the e1b1b1 cases fall under e-m78
in iraqi arabs

I think E-M123 among Iraqi E1b1b is still common than J1(xJ-P58) among the Iraqi Arab J1 samples! not to mention It's scarce to find my clade Z1842 in Arab world (my clade is more in caucasus and adjact region, that make sense since I am Armenian)

 

[kingjohn]

I think E-M123 among Iraqi E1b1b is still common than J1(xJ-P58) among the Iraqi Arab J1 samples! not to mention It's scarce to find my clade Z1842 in Arab world (my clade is more in caucasus and adjact region, that make sense since I am Armenian)

yes
your branch look
not related to semitic speakers in his geographical distribution ( beside few jordan and syrian rare cases)

J-Z1842 YTree

www.yfull.com

p.s
but generally speaking j1 was found in EHG in karelia north russia
it arraived to the levant from the north it might originated in caucasus to begin with

 

[Harutyan Jort]

yes
your branch look
not related to semitic speakers in his geographical distribution ( beside few jordan and syrian rare cases)

J-Z1842 YTree

www.yfull.com

p.s
but generally speaking j1 was found in EHG in karelia north russia
it arraived to the levant from the north it might originated in caucasus to begin with

the syrian sample from Dayr az Zawr, this place has the highest concentration of armenians in Levant besides Lebanon, so I guess it's still armenian guys, and the few Jordanian Z1842 sample are flagged with che( Chechen language )