1999 Volume 49 Issue 1 Pages 49-51
The location of the 18S ribosomal RNA gene (rDNA) was studied by fluorescence in situ hybridization (FISH) on peach (Prunus persica (L.) Batsch) cv. ‘Ohatsumomo'(2n=16) chromosomes. The 18S rDNA Ioci were detected at the satellites, termini, and in the proximal regions of the respective two chromosomes. The 18S rDNA Ioci corresponded to chromomycin A3 (CMA)-positive and 4'-6-diamidino-2-phenylindole (DAPI)-negative bands of the chromosomes.