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Table 1 Nigerian Cross River sample collection details.

From: Little genetic differentiation as assessed by uniparental markers in the presence of substantial language variation in peoples of the Cross River region of Nigeria

Code Language Place collected Clan/Secondary affiliation Latitude Longitude total n
SOUTH EAST NIGERIA
AN-EA Annang Afaha Esang, Ikot Ubom Ediene Abak 5.050 7.717 26
AN-AO Annang Afaha Esang, Ikot Ubom Afaha Obong 5.050 7.717 37
AN-IO Annang Abak, Ikot Obioma, Ikot Ekpene, Ukanafun   4.992 7.758 47
EF-EE Efik Eniong, Atan Ono Yom Efut 5.167 7.983 50
EF-INE Efik Ikot Nakanda, Ikot Ene Efut 4.908 8.442 48
EF-OEU Efik Oyo Efam, Ikot Abasi Obori Uwanse 4.950 8.317 50
EK-CA Ejagham Calabar Akampka 4.950 8.317 18
EK-CC Ejagham Calabar Calabar 4.950 8.317 29
EK-CI Ejagham Calabar Ikom 4.950 8.317 40
EK-NA Ejagham Netim Akampka 5.350 8.350 51
IB-ANMWN Ibibio Afaha Nsit, Mbiokporo Western Nsit 4.833 7.900 38
IB-EAEEUAE Ibibio Etebe Afaha Eket, Ekpene Ukpa Afaha Eket 4.717 7.867 50
IB-EUE Ibibio Ette Ukpom Ette 4.620 7.650 50
IB-IAAUA Ibibio Ikot Akpan, Afaha Ubiom Awa 4.690 7.815 28
IB-IEINOI Ibibio Ikot Essien, Ikot Ntu Oku-Iboku 5.133 7.933 50
IB-IMIEI Ibibio Ikot Mbonde, Ikot Ekang Itam 5.042 7.842 50
IB-IOINO Ibibio Ikot Oku, Ikot Ntuenoku Oku 5.100 7.967 50
IB-MNENN Ibibio Mkpok Ndon Eyo Nnung Ndem 4.633 7.850 50
IB-NEI Ibibio Ndiya Edienne Ikono 4.783 7.883 50
IB-OII Ibibio Obong Itam Itam 5.133 7.967 50
IB-ONMNI Ibibio Onoh, Ntan Mbat Ntan Ibiono 5.233 7.933 50
IG-C Igbo Calabar   4.950 8.317 100
OR-AO Oron Oron Afaha Okpo 4.833 8.233 28
OR-ENEEAU Oron Eyo Nsik, Eyo Ekpe Afaha Ukwong 4.750 8.250 73
IG-E Igbo Enugu   6.433 7.483 57
IG-N Igbo Nenwe   6.117 7.517 52
CAMEROON
CA-BT Tikar Bankim   6.083 11.500 34
CA-FB Bamun Foumban   5.717 10.917 117
CA-WA Aghem Wum   6.383 10.067 118
GHANA
GH-AEW Akan Enchi   5.817 -2.817 21
GH-AKE Akan Kibi   6.167 -0.550 51
GH-ASWW Akan Sefwi-Wiawso   6.333 -2.267 22
GH-FEWR Akan Enchi   5.817 -2.817 61
GH-EHVR Ewe Ho   6.600 0.467 88