A very recent paper on Y-chromosomes published in 2012, (Re-Examing the Out of Africa Theory and the Origin of Europeoids (Caucasians) in the Light of DNA Genealogy written by Anatole A. Klyosov and Igor L. Rozhanski) only confirms the denial of any African ancestry in non-Africans, and strongly supports the existence of a common ancestor who would not necessarily be in Africa. In fact, it was never proven that he lived in Africa.
With the haplogroups not present in any African genes and an absence of dozens of African genetic markers, it is very difficult nigh on impossible to sustain any link to Africa. The researchers are adamant that their extensive study offers evidence to re-examine the validity of the Out-of-Africa concept.
Source : redicecreations.com