A stem for human origins in Africa
Modeling evolution of the human population based on genomic DNA sequences from current African and European populations and fossil record: a new model with concrete features for fossil record
The models supporting this theory rely on new software and genomic sequencing data from current African and European populations, as well as Neanderthal DNA. Researchers published the results on 17 May in Nature.
There are still questions surrounding the origins of humans. He will add more data to the models to see if it changes their results. She also hopes to use the data to make predictions about fossil record, for example predicting what features would be found in human fossils from a particular area.
The models use variables such as migration and populations merging to predict gene flow over the course of thousands of years. The predictions are compared to the genetic variation in order to find the best models.
“We really wanted to sit down and very systematically evaluate the models in a more creative way,” says Henn. A new model for human evolution is concrete.
Genome sequencing of the Nama and East African peoples reveals a single birthplace for Homo sapiens? Dr. Michael Scerri says Africa is not the same as fossils
The latest study incorporated genome sequencing from existing east and west African populations and the Nama people of southern Africa. Researchers were able to understand the movement of genes across generations thanks to the spread of genomic data.
The single-origin theory has been popular for decades, and is based in part on fossil records. Scerri says that the theory doesn’t fit the data. Africa is home to the tools and physical characteristics attributed to Homo sapiens. Archeologists would expect to see fossils farther away from a central point if humans had lived in a single location.
The evidence that there is no single birthplace in Africa and that human evolution is a process with deep African roots is more solidified by the study.