@article {319240,
	title = {Ancient DNA reveals a multistep spread of the first herders into sub-Saharan Africa},
	journal = {Science},
	year = {2019},
	month = {2019/05/30},
	pages = {eaaw6275},
	abstract = {<p>How food production first entered eastern Africa ~5000 years ago and the extent to which people moved with livestock is unclear. We present genome-wide data from 41 individuals associated with Later Stone Age, Pastoral Neolithic (PN), and Iron Age contexts in what are now Kenya and Tanzania to examine the genetic impacts of the spreads of herding and farming. Our results support a multi-phase model in which admixture between northeastern African-related peoples and eastern African foragers formed multiple pastoralist groups, including a genetically homogeneous PN cluster. Additional admixture with northeastern and western African-related groups occurred by the Iron Age. These findings support several movements of food producers, while rejecting models of minimal admixture with foragers and of genetic differentiation between makers of distinct PN artifacts.</p>
},
	doi = {10.1126/science.aaw6275},
	url = {http://science.sciencemag.org/content/early/2019/05/29/science.aaw6275.abstract},
	author = {Prendergast, Mary E. and Lipson, Mark and Sawchuk, Elizabeth A. and Olalde, I{\~n}igo and Ogola, Christine A. and Rohland, Nadin and Sirak, Kendra A. and Adamski, Nicole and Bernardos, Rebecca and Broomandkhoshbacht, Nasreen and Callan, Kimberly and Culleton, Brendan J. and Eccles, Laurie and Harper, Thomas K. and Lawson, Ann Marie and Mah, Matthew and Oppenheimer, Jonas and Stewardson, Kristin and Zalzala, Fatma and Ambrose, Stanley H. and Ayodo, George and Gates, Henry Louis and Gidna, Agness O. and Katongo, Maggie and Kwekason, Amandus and Mabulla, Audax Z. P. and Mudenda, George S. and Ndiema, Emmanuel K. and Nelson, Charles and Robertshaw, Peter and Kennett, Douglas J. and Manthi, Fredrick K. and Reich, David}
}
