Scientists have studied modern
maternal haplogroups collected from 264 Algerian Chaoui Berbers, and found them to be linked to
Southern Europe,
Middle East and
Sub-Saharan Africa. The times of coalescence for select European clades such as ~6,000 ybp for H1cb1, U3a1c, and U5b1b1e could be traced to the Neolithic. The other European origin lineages like H1e1a, were given a time of ~3000 ybp, as they were also found in the
Canary Islands. Middle Eastern origin lineages like J2a2d were dated to ~9,000 ybp, and was said to represent potential pre-agricultural contact between the Near-East and North Africa. While others like T1a7 was associated with
Bedouin expansions into the Maghreb from 1,000 ybp. Sub-Saharan lineages like L3e5, L3b1a9a were dated to ~ 10,000-5000 ybp, and may be from trans-Saharan migration during the
Green Sahara period with a prehistoric origin. However, the great majority of sub-Saharan sequences in North Africa do not form phylogenetic clades, and most sub-Saharan African mitogenomes have a recent arrival into the region during
trans-Saharan slave trades. == Culture and art ==