M. Rasmussen et al., SINE-LIKE PROPERTIES OF A HIGHLY REPETITIVE ELEMENT IN THE GENOME OF THE OBLIGATE PARASITIC FUNGUS ERYSIPHE-GRAMINIS F SP HORDEI, MGG. Molecular & general genetics, 239(1-2), 1993, pp. 298-303
The genomic organization of repetitive DNA in the obligate parasitic f
ungus Erysiphe graminis DC ex Merat f.sp. hordei Em. Marchal was inves
tigated using a cosmid library of the fungal genome. Three repetitive
sequences were shown to be dispersed throughout the genome, and in a f
ew cases they were found closely associated with long poly(dA) tracts.
The most prevalent sequence is 903 bp long and accounts for at least
5% of the genome. Sequence analysis revealed features resembling mamma
lian Short INterspersed Elements (SINEs), namely the presence of a pol
y(dA) tail (33 bp), flanking direct repeats (13 bp), putative ''A'' an
d ''B'' blocks for RNA polymerase III binding; the corresponding trans
cript would be capable of forming a complex secondary structure.