Reply to Lancaster

[1]  R. Scozzari,et al.  Human Y chromosome haplogroup R-V88: a paternal genetic record of early mid Holocene trans-Saharan connections and the spread of Chadic languages , 2010, European Journal of Human Genetics.

[2]  Andrew Lancaster.  Chadic languages and Y haplogroups , 2010, European Journal of Human Genetics.

[3]  V. Černý,et al.  Migration of Chadic speaking pastoralists within Africa based on population structure of Chad Basin and phylogeography of mitochondrial L3f haplogroup , 2009, BMC Evolutionary Biology.

[4]  A. Torroni,et al.  The Complex and Diversified Mitochondrial Gene Pool of Berber Populations , 2009, Annals of human genetics.

[5]  P. Underhill,et al.  Y-chromosome variation among Sudanese: restricted gene flow, concordance with language, geography, and history. , 2008, American journal of physical anthropology.

[6]  C. Robino,et al.  Analysis of Y-chromosomal SNP haplogroups and STR haplotypes in an Algerian population sample , 2008, International Journal of Legal Medicine.

[7]  A. Salas,et al.  A Bidirectional Corridor in the Sahel‐Sudan Belt and the Distinctive Features of the Chad Basin Populations: A History Revealed by the Mitochondrial DNA Genome , 2007, Annals of human genetics.

[8]  Giovanni Destro-Bisol,et al.  Contrasting patterns of Y chromosome and mtDNA variation in Africa: evidence for sex-biased demographic processes , 2005, European Journal of Human Genetics.

[9]  R. J. Herrera,et al.  The Levant versus the Horn of Africa: evidence for bidirectional corridors of human migrations. , 2004, American journal of human genetics.

[10]  Á. Carracedo,et al.  The making of the African mtDNA landscape. , 2002, American journal of human genetics.

[11]  P. Underhill,et al.  A back migration from Asia to sub-Saharan Africa is supported by high-resolution analysis of human Y-chromosome haplotypes. , 2002, American journal of human genetics.

[12]  C. Ehret.  The Civilizations of Africa: A History to 1800 , 2002 .

[13]  R. Blench.  The westward wanderings of Cushitic pastoralists : explorations in the prehistory of Cental Africa , 1999 .