Nomenclature for mouse strains

Understanding appropriate nomenclature is essential due to the complexity of strain names for substrains, transgenics, knockouts, etc. To enable broader awareness of nomenclature, The Jackson Laboratory has provided the resources below.

Interactive nomenclature tutorial

Learn the highlights of mouse strain nomenclature with our short, interactive tutorial. 

Short guide to mouse nomenclature

This one-page PDF provides a handy reference to understand complex mouse strain names.

Helpful hints for understanding JAX® Mice strain names

Details specific differences in nomenclature rules for inbred strains, hybrid mice, knockouts, and more.

JAX Mice strains—current and former names

Updated daily from information in the JAX® Mice and Mouse Genome Informatics databases.

Strain abbreviations for hybrid mice

To name F1 hybrids, standard strain abbreviations are used; this table helps to understand which background strains make up a hybrid. 

129 nomenclature revision

The names of the substrains of 129 were modified to reflect their relationships to one another. This bulletin details that change. 

Targeted mutation nomenclature

This JAX® NOTES article from Winter 2001 explains how Laboratory Codes and serial numbers dictate the nomenclature of mutant mice.

Congenic nomenclature

Effective June 2000, a large number of JAX® Mice strain names changed to indicate the mutation's strain of origin; this JAX Bulletin details congenic nomenclature.

Strain abbreviations for recombinant inbred (RI) mice

To name RI strains, non-standard abbreviations are used; this table defines which progenitor strains make up an RI strain.

The Mouse Genome Informatics Database (MGI) is a reliable source of official nomenclature for mouse genes, alleles, and strains; they follow the rules of the International Committee on Standardized Genetic Nomenclature for Mice.

JAX Webinars: Knowledge to drive discovery