Curr Opin Genet Dev. 1991 Dec;1(4):478-84. doi: 10.1016/s0959-437x(05)80195-9.
Current opinion in genetics & development
D A Shub
PMID: 1822280 DOI: 10.1016/s0959-437x(05)80195-9
The recent discovery of self-splicing introns in cyanobacteria has given renewed interest to the question of whether introns may have been present in the ancestor of all living things. The properties of introns in genes of bacteria and bacteriophages are discussed in the context of their possible origin and biological function.