M. Yamamoto et al., Physical mapping of the 18S ribosomal RNA gene of peach (Prunus persica (L.) Batsch) chromosomes by fluorescence in situ hybridization, BREED SCI, 49(1), 1999, pp. 49-51
The location of the 18S ribosomal RNA gene (rDNA) was studied by fluorescen
ce in situ hybridization (FISH) on peach (Prunus persica (L.) Batsch) cv. '
Ohatsumomo'(2n=16) chromosomes. The 18S rDNA loci were detected at the sate
llites, termini, and in the proximal regions of the respective two chromoso
mes. The 18S rDNA loci corresponded to chromomycin A(3) (CMA)- positive and
4'-6-diamidino-2-phenylindole (DAP)-negative bands of the chromosomes.