A genome-wide library of MADM mice for single-cell genetic mosaic analysis

Autor: Nicole Amberg, Lill Andersen, Amarbayasgalan Davaatseren, Liqun Luo, Johanna Sonntag, Simon Hippenmeyer, Andi H. Hansen, Thomas Rülicke, Anna-Magdalena Heger, Lindsay A. Schwarz, Carmen Streicher, Tina Bernthaler, Randy L. Johnson, Ximena Contreras
Rok vydání: 2021
Předmět:
Zdroj: Cell Reports
Cell Rep
ISSN: 2211-1247
DOI: 10.1016/j.celrep.2021.109274
Popis: SUMMARY: Mosaic analysis with double markers (MADM) offers one approach to visualize and concomitantly manipulate genetically defined cells in mice with single-cell resolution. MADM applications include the analysis of lineage, single-cell morphology and physiology, genomic imprinting phenotypes, and dissection of cell-autonomous gene functions in vivo in health and disease. Yet, MADM can only be applied to 96% of the entire mouse genome can now be subjected to single-cell genetic mosaic analysis. Beyond a proof of principle, we apply our MADM library to systematically trace sister chromatid segregation in distinct mitotic cell lineages. We find striking chromosome-specific biases in segregation patterns, reflecting a putative mechanism for the asymmetric segregation of genetic determinants in somatic stem cell division. IN BRIEF: Contreras et al. generate a resource and suite of transgenic MADM mice for genetic mosaic analysis with double markers of >96% of the entire mouse genome. In addition to providing a proof of principle, they find non-random mitotic sister chromatid segregation in distinct somatic cell lineages in vivo.
Databáze: OpenAIRE