Helpful hints for understanding hybrid strain nomenclature

To name F1 hybrids, the standard strain abbreviations listed above are used. The abbreviation of the female parent is listed first and the male parent second. Thus, B6D2F1/J mice are the offspring of a C57BL/6J female mated to a DBA/2J male, and D2B6F1/J mice are offspring of the reciprocal mating. Such reciprocal F1 hybrids differ in the Y Chromosome carried by the males and the maternally-derived mitochondrial genome, and they have been exposed to different maternal environments. Thus, reciprocal F1 hybrids should not be considered genetically identical.

For more details on hybrid nomenclature, consult the "Interactive tutorial on mouse nomenclature."

Standard Abbreviations Used in Hybrid Names

Strain Abbreviation   Strain Abbreviation
129P3/J 129P   C57L/J L
129S1/SvImJ 129S   CBA/CaGnLe CBACa
A/HeJ AH3   CBA/J CBA
A/J A   C3H/HeJ C3
AKR/J AK   C3HeB/FeJ C3Fe
BALB/cByJ CBy   DBA/1J D1
BALB/cJ C   DBA/2J D2
C57BL B   NZB/B1NJ NZB
C57BL/6J B6   NZW/LacJ NZW
C57BL/6JEi B6Ei   RIIIS/J R3
C57BL/10J B10   SJL/J SJL or J
C57BR/cdJ BR   SWR/J SW