somatic gene conversion

https://doi.org/10.1351/goldbook.13688
Nonreciprocal exchange of nucleic acid sequences between genes in which part of the donor gene or genes is "copied" into an acceptor gene, but only the acceptor gene is altered.
Note: This exchange is a mechanism for generating a diverse immunoglobulin (Ig) repertoire in many non-human species.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1246 [Terms] [Paper]