Open AccessGenetic studies of human–chimpanzee divergence using stem cell fusions
Author(s) -
Janet Song,
Rachel Grant,
Veronica C. Behrens,
Marek Kučka,
Garrett A. Roberts Kingman,
Volker Soltys,
Yingguang Frank Chan,
David M. Kingsley
Publication year - 2021
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.2117557118
Subject(s) - biology , genetics , gene , genome , ploidy , induced pluripotent stem cell , phenotype , mesoderm , evolutionary biology , embryonic stem cell
Significance Comparative studies of humans and chimpanzees have revealed many anatomical, physiological, behavioral, and molecular differences. However, it has been challenging to map these differences to particular chromosome regions. Here, we develop a genetic approach in fused stem cell lines that makes it possible to map human–chimpanzee molecular and cellular differences to specific regions of the genome. We illustrate this approach by mapping chromosome regions responsible for species-specific gene expression differences in fused tetraploid cells. This approach is general, and could be used in the future to map the genomic changes that control many other human–chimpanzee differences in various cell types or organoids in vitro.