The process in which B cells acquire the specialized features of B-1a B cells. B-1a B cells are B-1 cells that express CD5 and arise from fetal liver precursors. [ https://www.worldcat.org/search?q=bn%3A0781735149 GOC:jal ]
Synonyms: B-1a B-cell differentiation B-1a B-lymphocyte differentiation B-1a B lymphocyte differentiation
Term information
Note that immunologists typically use the word 'development' to refer to cells of B or T cell lineages undergoing the process that GO describes as 'cell differentiation'.