Title

A Platform for Experimental Precision Medicine: The Extended BXD Mouse Family.

Document Type

Article

Publication Date

2021

Keywords

JMG

JAX Source

Cell Syst 2021; 12

ISSN

2405-4720

PMID

33472028

DOI

https://doi.org/10.1016/j.cels.2020.12.002

Abstract

The challenge of precision medicine is to model complex interactions among DNA variants, phenotypes, development, environments, and treatments. We address this challenge by expanding the BXD family of mice to 140 fully isogenic strains, creating a uniquely powerful model for precision medicine. This family segregates for 6 million common DNA variants-a level that exceeds many human populations. Because each member can be replicated, heritable traits can be mapped with high power and precision. Current BXD phenomes are unsurpassed in coverage and include much omics data and thousands of quantitative traits. BXDs can be extended by a single-generation cross to as many as 19,460 isogenic F1 progeny, and this extended BXD family is an effective platform for testing causal modeling and for predictive validation. BXDs are a unique core resource for the field of experimental precision medicine.

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