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[QUOTE]Originally posted by melchior7: [QB] Here is yet another study which holds that European mtdna in North Africa is mostly prehistoric. This one focuses on Libya. "Africa and shows an opposite frequency gradient respect to M1, being U6 significantly more frequent in the West, whereas M1 is more frequent in the East. Interestingly, these haplogroups display similar frequencies in the Libyan mtDNA pool (4.1% for U6 and 3.3% for M1). Eurasian haplogroups HV0, H1, and K are the most frequent in Libyans (7.4, 6.3, and 5.2%, respectively). To trace back the geographical origin of the H lineages in Libya, we dissected haplogroup H in several subclades(see Materials and Methods). Compared with previous published data (Ennafaa et al., 2009), Libyan individuals exhibit an admixture of western and eastern H subclades(Table 2). As in North West African populations,H1 and H3 are the most frequent subclades, and account for 48% of the H lineages. However, these frequencies are lower than those found in Maghreb populations because of the relative high proportion of H5, H7, and H13 subgroups in Libya, which are more frequent in the Near East (Roostalu et al., 2006). The age estimation of haplogroup H1 based on the HVSI region in Europe is 16.0 kya (Pereira et al., 2005), 11.7 kya in Tunisia (Cherni et al., 2009), and between 4.4 and 11.5 kya in Libyan Tuaregs (Ottoni et al., 2010). When H1 Libyan sequences are taken into account, coalescence age estimates in Libya (14.7 6 4.4 kya) are compatible with those found in Tunisia and in Tuareg. The haplogroup H1 network can be found in Supporting Information Figure 1." http://bhusers.upf.edu/dcomas/wp-content/uploads/2011/02/Fadhlaoui-Zid_inpress1.pdf [/QB][/QUOTE]
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