Nucleotide sequence of the potato rDNA intergenic spacer

Plant Mol Biol. 1993 Jan;21(2):381-4. doi: 10.1007/BF00019953.


The large intergenic spacer (IGS) of potato rDNA was sequenced and compared to the IGS sequence of tomato. Both spacers exhibit similar length and architecture. Absence of repeated elements down-stream of the putative transcription initiation site (TIS) in potato is compensated by the larger number of subrepeats upstream of the TIS. Especially high level of similarity (86% and 86.5%, respectively) is found in the AT-rich domain containing the TIS and the region approx. 800 bp upstream of the 18S rRNA gene.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Base Sequence
  • DNA, Ribosomal / genetics*
  • Molecular Sequence Data
  • Phylogeny
  • Plants / genetics*
  • Sequence Homology, Nucleic Acid
  • Solanum tuberosum / genetics*
  • Transcription, Genetic


  • DNA, Ribosomal

Associated data

  • GENBANK/X65489