syngeneic

https://doi.org/10.1351/goldbook.13707
Genetically identical, e.g., a fully inbred strain of mice.
Note: A practical consequence is that cells can be transferred to other syngeneic animals without rejection.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1248 [Terms] [Paper]