Genomic diversity of Ac-like transposable elements in sphaerococcum mutant forms of common wheat (Triticum aestivum L.) and triticale (X Triticosecale Witt.).

DNA sequences homologous to the maize Activator (Ac) element are widespread in plant genomes. Nowadays, several reports are available concerning the distribution and characterisation of Ac-homologous sequences in natural populations of different cereal species. but these mobile genetic elements still remain to be comprehensively characterised.